Talk:Climate of Sydney

Copied

This article has been copied from Sydney. Adds nothing new. Propose merge/deletion --Merbabu 04:26, 27 September 2006 (UTC)

formerly, now does not. Subtropical-man (talk) 20:23, 20 July 2012 (UTC)

Rain days not consistent with other pages

I just came from the Rome page and it uses (>1mm) for number of rainy days. By comparison this artificially inflates the figure (from the same source) by 50%. I tried to change it but it didn't work — Preceding unsigned comment added by 122.150.64.245 (talk) 23:41, 2 June 2012 (UTC)

There isn't any inflation of the number of precipitation days. They may have used a lower threshold (I think >0.2 mm on the BoM page) since not all rainy days will result in precipitation greater than 1.0 mm. However, it is true that the number of rainy days is not consistent since different countries will use different thresholds (eg. >0.2 mm or >0.1 mm). Ssbbplayer (talk) 15:49, 12 April 2014 (UTC)

Comparison

It would be nice if some comparisons with other world countries could be made in this article. I don't have the knowledge about it, but it could make this article more interesting for people abroad Australia and also serve my own curiosity.

--DDdW (talk) 22:46, 31 December 2012 (UTC)

That would be nice for a reader but it is comparing apples to oranges. Concerns about comparing cities have been raised up in certain articles such Talk#Climate of London. The major problems would be number of days with precipitation because different countries will use different thresholds to determine if a day has precipitation. For example, Environment Canada uses the 0.2 mm threshold while in the UK, Met Office uses the 1.0 mm threshold. Some countries use the 0.1 mm threshold (eg. Argentina and Mexico). For Australia, I am unsure although I think it is 0.2 mm. It is impossible to determine which cities are rainy or not. Sunshine is also measured differently with USA being notable in not using the Campbell-Stokes recorder; that is why their sunshine values tend to be higher. It would be wrong to say Sydney is less sunny than New York City (using the observatory data) because they measure sunshine differently. Although I would not suggest putting in statements to compare the climate between 2 different cities, it would be better for the reader to decide to compare the climate to other cities. Finally, the period of reference is different; some countries use 1981–2010, others use 1961–1990 while Australia uses the full period of reference, depending on how long the station has been opened. Ssbbplayer (talk) 05:34, 5 March 2016 (UTC)

Humidity

Would anyone object to the statement that Sydney experiences humid summers? Ashton 29 (talk) 04:28, 10 January 2014 (UTC)

I've checked the sources and they don't support anything about "humid summers", please see WP:BURDEN. Bidgee (talk) 04:32, 10 January 2014 (UTC)

Humidity 2

I saw this by User:Meganesia and the reversal by User:Bidgee. While I'm not sure if there is a consensus in Australian articles over the humidity I do know that the 3:00 pm humidity is used in Canadian articles. For example see Vancouver#Climate and the source. I don't think I have seen a 24 hour average humidity. I think what is needed is something similar to the "|unit rain days=" so that you could put in something like "Mean 3pm relative humidity (%)". CBWeather, Talk, Seal meat for supper? 04:09, 23 April 2014 (UTC)

There should be some sort of indicator to tell the readers whether the humidity is recorded at since the morning values are usually higher than the afternoon, leading to the climate appearing more or less humid than it should be, depending on which time is chosen for the humidity. Usually, I rarely add humidity values at a specific time and prefer to add mean values (for example see Cape Town#Climate and the NOAA source) instead, since it is more accurate and representative of the climate. Ssbbplayer (talk) 17:57, 23 April 2014 (UTC)

Yes. The mean are better if available. I followed the link from the Cape Town and was able to get the WMO sources for Cambridge Bay. They only have numbers for some months. CBWeather, Talk, Seal meat for supper? 03:24, 24 April 2014 (UTC)

Hi CBWeather. Mind you, not all the 3pm (nor 9am) humidity records were added by me. For example, Brisbane already had 3pm figures added earlier - I just changed their colour to green though. Yes, many other cities on Wiki go by the afternoon or 3pm figures. Sure, there is a daily mean in some weather stations and Wiki boxes here, but unfortunately Australia (BOM) just goes by 9am and 3pm. I personally find the 3pm figures more accurate and more in representation of the day than 9am's. Meganesia, Talk 18:03, 24 April 2014 (UTC)

I didn't notice any other. It's just the Sydney one that I saw. The Canadian ones are the same but use 6 am and 3 pm. CBWeather, Talk, Seal meat for supper? 15:44, 24 April 2014 (UTC)

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== Problem with

Climate data for Sydney (Observatory Hill) 1991–2020 averages, 1861–present extremes
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	45.8 (114.4)	42.1 (107.8)	39.8 (103.6)	35.4 (95.7)	30.0 (86.0)	26.9 (80.4)	26.5 (79.7)	31.3 (88.3)	34.6 (94.3)	38.2 (100.8)	41.8 (107.2)	42.2 (108.0)	45.8 (114.4)
Mean maximum °C (°F)	36.8 (98.2)	34.1 (93.4)	32.2 (90.0)	29.7 (85.5)	26.2 (79.2)	22.3 (72.1)	22.9 (73.2)	25.4 (77.7)	29.9 (85.8)	33.6 (92.5)	34.1 (93.4)	34.4 (93.9)	38.8 (101.8)
Mean daily maximum °C (°F)	27.0 (80.6)	26.8 (80.2)	25.7 (78.3)	23.6 (74.5)	20.9 (69.6)	18.3 (64.9)	17.9 (64.2)	19.3 (66.7)	21.6 (70.9)	23.2 (73.8)	24.2 (75.6)	25.7 (78.3)	22.8 (73.0)
Daily mean °C (°F)	23.5 (74.3)	23.4 (74.1)	22.1 (71.8)	19.5 (67.1)	16.6 (61.9)	14.2 (57.6)	13.4 (56.1)	14.5 (58.1)	17.0 (62.6)	18.9 (66.0)	20.4 (68.7)	22.1 (71.8)	18.8 (65.8)
Mean daily minimum °C (°F)	20.0 (68.0)	19.9 (67.8)	18.4 (65.1)	15.3 (59.5)	12.3 (54.1)	10.0 (50.0)	8.9 (48.0)	9.7 (49.5)	12.3 (54.1)	14.6 (58.3)	16.6 (61.9)	18.4 (65.1)	14.7 (58.5)
Mean minimum °C (°F)	16.1 (61.0)	16.1 (61.0)	14.2 (57.6)	11.0 (51.8)	8.3 (46.9)	6.5 (43.7)	5.7 (42.3)	6.1 (43.0)	8.0 (46.4)	9.8 (49.6)	12.0 (53.6)	13.9 (57.0)	5.3 (41.5)
Record low °C (°F)	10.6 (51.1)	9.6 (49.3)	9.3 (48.7)	7.0 (44.6)	4.4 (39.9)	2.1 (35.8)	2.2 (36.0)	2.7 (36.9)	4.9 (40.8)	5.7 (42.3)	7.7 (45.9)	9.1 (48.4)	2.1 (35.8)
Average rainfall mm (inches)	91.1 (3.59)	131.5 (5.18)	117.5 (4.63)	114.1 (4.49)	100.8 (3.97)	142.0 (5.59)	80.3 (3.16)	75.1 (2.96)	63.4 (2.50)	67.7 (2.67)	90.6 (3.57)	73.0 (2.87)	1,149.7 (45.26)
Average rainy days (≥ 1 mm)	8.2	9.0	10.1	7.9	7.9	9.3	7.2	5.6	5.8	7.6	8.7	7.9	95.2
Average afternoon relative humidity (%)	60	62	59	58	58	56	52	47	49	53	57	58	56
Average dew point °C (°F)	16.5 (61.7)	17.2 (63.0)	15.4 (59.7)	12.7 (54.9)	10.3 (50.5)	7.8 (46.0)	6.1 (43.0)	5.4 (41.7)	7.8 (46.0)	10.2 (50.4)	12.6 (54.7)	14.6 (58.3)	11.4 (52.5)
Mean monthly sunshine hours	232.5	205.9	210.8	213.0	204.6	171.0	207.7	248.0	243.0	244.9	222.0	235.6	2,639
Percent possible sunshine	53	54	55	63	63	57	66	72	67	61	55	55	60
Source 1: Bureau of Meteorology
Source 2: Bureau of Meteorology, Sydney Airport (sunshine hours)

== Hi, just thought I'd let you know that http://www.bom.gov.au/jsp/ncc/cdio/weatherData/av?p_nccObsCode=122&p_display_type=dailyDataFile&p_startYear=2016&p_c=-872834611&p_stn_num=066062 and http://www.bom.gov.au/jsp/ncc/cdio/weatherData/av?p_nccObsCode=123&p_display_type=dailyDataFile&p_startYear=2016&p_c=-872834807&p_stn_num=066062 disprove the temperature figures in the

Climate data for Sydney (Observatory Hill) 1991–2020 averages, 1861–present extremes
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	45.8 (114.4)	42.1 (107.8)	39.8 (103.6)	35.4 (95.7)	30.0 (86.0)	26.9 (80.4)	26.5 (79.7)	31.3 (88.3)	34.6 (94.3)	38.2 (100.8)	41.8 (107.2)	42.2 (108.0)	45.8 (114.4)
Mean maximum °C (°F)	36.8 (98.2)	34.1 (93.4)	32.2 (90.0)	29.7 (85.5)	26.2 (79.2)	22.3 (72.1)	22.9 (73.2)	25.4 (77.7)	29.9 (85.8)	33.6 (92.5)	34.1 (93.4)	34.4 (93.9)	38.8 (101.8)
Mean daily maximum °C (°F)	27.0 (80.6)	26.8 (80.2)	25.7 (78.3)	23.6 (74.5)	20.9 (69.6)	18.3 (64.9)	17.9 (64.2)	19.3 (66.7)	21.6 (70.9)	23.2 (73.8)	24.2 (75.6)	25.7 (78.3)	22.8 (73.0)
Daily mean °C (°F)	23.5 (74.3)	23.4 (74.1)	22.1 (71.8)	19.5 (67.1)	16.6 (61.9)	14.2 (57.6)	13.4 (56.1)	14.5 (58.1)	17.0 (62.6)	18.9 (66.0)	20.4 (68.7)	22.1 (71.8)	18.8 (65.8)
Mean daily minimum °C (°F)	20.0 (68.0)	19.9 (67.8)	18.4 (65.1)	15.3 (59.5)	12.3 (54.1)	10.0 (50.0)	8.9 (48.0)	9.7 (49.5)	12.3 (54.1)	14.6 (58.3)	16.6 (61.9)	18.4 (65.1)	14.7 (58.5)
Mean minimum °C (°F)	16.1 (61.0)	16.1 (61.0)	14.2 (57.6)	11.0 (51.8)	8.3 (46.9)	6.5 (43.7)	5.7 (42.3)	6.1 (43.0)	8.0 (46.4)	9.8 (49.6)	12.0 (53.6)	13.9 (57.0)	5.3 (41.5)
Record low °C (°F)	10.6 (51.1)	9.6 (49.3)	9.3 (48.7)	7.0 (44.6)	4.4 (39.9)	2.1 (35.8)	2.2 (36.0)	2.7 (36.9)	4.9 (40.8)	5.7 (42.3)	7.7 (45.9)	9.1 (48.4)	2.1 (35.8)
Average rainfall mm (inches)	91.1 (3.59)	131.5 (5.18)	117.5 (4.63)	114.1 (4.49)	100.8 (3.97)	142.0 (5.59)	80.3 (3.16)	75.1 (2.96)	63.4 (2.50)	67.7 (2.67)	90.6 (3.57)	73.0 (2.87)	1,149.7 (45.26)
Average rainy days (≥ 1 mm)	8.2	9.0	10.1	7.9	7.9	9.3	7.2	5.6	5.8	7.6	8.7	7.9	95.2
Average afternoon relative humidity (%)	60	62	59	58	58	56	52	47	49	53	57	58	56
Average dew point °C (°F)	16.5 (61.7)	17.2 (63.0)	15.4 (59.7)	12.7 (54.9)	10.3 (50.5)	7.8 (46.0)	6.1 (43.0)	5.4 (41.7)	7.8 (46.0)	10.2 (50.4)	12.6 (54.7)	14.6 (58.3)	11.4 (52.5)
Mean monthly sunshine hours	232.5	205.9	210.8	213.0	204.6	171.0	207.7	248.0	243.0	244.9	222.0	235.6	2,639
Percent possible sunshine	53	54	55	63	63	57	66	72	67	61	55	55	60
Source 1: Bureau of Meteorology
Source 2: Bureau of Meteorology, Sydney Airport (sunshine hours)

. I don't know how to fix the

Climate data for Sydney (Observatory Hill) 1991–2020 averages, 1861–present extremes
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	45.8 (114.4)	42.1 (107.8)	39.8 (103.6)	35.4 (95.7)	30.0 (86.0)	26.9 (80.4)	26.5 (79.7)	31.3 (88.3)	34.6 (94.3)	38.2 (100.8)	41.8 (107.2)	42.2 (108.0)	45.8 (114.4)
Mean maximum °C (°F)	36.8 (98.2)	34.1 (93.4)	32.2 (90.0)	29.7 (85.5)	26.2 (79.2)	22.3 (72.1)	22.9 (73.2)	25.4 (77.7)	29.9 (85.8)	33.6 (92.5)	34.1 (93.4)	34.4 (93.9)	38.8 (101.8)
Mean daily maximum °C (°F)	27.0 (80.6)	26.8 (80.2)	25.7 (78.3)	23.6 (74.5)	20.9 (69.6)	18.3 (64.9)	17.9 (64.2)	19.3 (66.7)	21.6 (70.9)	23.2 (73.8)	24.2 (75.6)	25.7 (78.3)	22.8 (73.0)
Daily mean °C (°F)	23.5 (74.3)	23.4 (74.1)	22.1 (71.8)	19.5 (67.1)	16.6 (61.9)	14.2 (57.6)	13.4 (56.1)	14.5 (58.1)	17.0 (62.6)	18.9 (66.0)	20.4 (68.7)	22.1 (71.8)	18.8 (65.8)
Mean daily minimum °C (°F)	20.0 (68.0)	19.9 (67.8)	18.4 (65.1)	15.3 (59.5)	12.3 (54.1)	10.0 (50.0)	8.9 (48.0)	9.7 (49.5)	12.3 (54.1)	14.6 (58.3)	16.6 (61.9)	18.4 (65.1)	14.7 (58.5)
Mean minimum °C (°F)	16.1 (61.0)	16.1 (61.0)	14.2 (57.6)	11.0 (51.8)	8.3 (46.9)	6.5 (43.7)	5.7 (42.3)	6.1 (43.0)	8.0 (46.4)	9.8 (49.6)	12.0 (53.6)	13.9 (57.0)	5.3 (41.5)
Record low °C (°F)	10.6 (51.1)	9.6 (49.3)	9.3 (48.7)	7.0 (44.6)	4.4 (39.9)	2.1 (35.8)	2.2 (36.0)	2.7 (36.9)	4.9 (40.8)	5.7 (42.3)	7.7 (45.9)	9.1 (48.4)	2.1 (35.8)
Average rainfall mm (inches)	91.1 (3.59)	131.5 (5.18)	117.5 (4.63)	114.1 (4.49)	100.8 (3.97)	142.0 (5.59)	80.3 (3.16)	75.1 (2.96)	63.4 (2.50)	67.7 (2.67)	90.6 (3.57)	73.0 (2.87)	1,149.7 (45.26)
Average rainy days (≥ 1 mm)	8.2	9.0	10.1	7.9	7.9	9.3	7.2	5.6	5.8	7.6	8.7	7.9	95.2
Average afternoon relative humidity (%)	60	62	59	58	58	56	52	47	49	53	57	58	56
Average dew point °C (°F)	16.5 (61.7)	17.2 (63.0)	15.4 (59.7)	12.7 (54.9)	10.3 (50.5)	7.8 (46.0)	6.1 (43.0)	5.4 (41.7)	7.8 (46.0)	10.2 (50.4)	12.6 (54.7)	14.6 (58.3)	11.4 (52.5)
Mean monthly sunshine hours	232.5	205.9	210.8	213.0	204.6	171.0	207.7	248.0	243.0	244.9	222.0	235.6	2,639
Percent possible sunshine	53	54	55	63	63	57	66	72	67	61	55	55	60
Source 1: Bureau of Meteorology
Source 2: Bureau of Meteorology, Sydney Airport (sunshine hours)

.

Hymnodist.2004 (talk) 10:45, 14 February 2017 (UTC)

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Updated the chart to match the latest Sydney data available from Bureau of Meteorology

Hi,

I've just updated the Sydney chart figures using the latest data from the Bureau of Meteorology Site for Observatory Hill, i.e. the standard Sydney weather site. The updated figures are from the Bureau of Meteorology Site for Observatory Hill, i.e. the standard Sydney weather site. Also, they are a summary for all years that records are available, not just those since the 1980's. Importantly, they are a summary for all years that records are available, not just those since the 1980's.

29 August 2019 I've just reverted changes made 28 August 2019 as the climate data needs to reflect all available data, not just 1981 to 2010 Harkhuf (talk) 05:53, 29 August 2019 (UTC)Harkhuf

Your changes have been undone. Standard climatical data is last 30-years period, not last 200 years. This is standard in most of climatical pages and in Wikipedia. Historical data from the 1800s falsify the general outline of the current climate. Subtropical-man (✉ | en-2) 23:26, 15 February 2020 (UTC)

I have been there

• I was in NSW (Australia) including Sydney June & July 1984. Anthony Appleyard (talk) 11:23, 2 January 2020 (UTC)

Commons files used on this page have been nominated for deletion

The following Wikimedia Commons files used on this page have been nominated for deletion:

• Sydneyfoggy.jpg (discussion)
• Sydneyhail.jpg (discussion)

Participate in the deletion discussions at the nomination pages linked above. —Community Tech bot (talk) 01:35, 9 January 2020 (UTC)

Claiming the lengths of the seasons have changed

We have a new IP user determined to write in this article that the lengths of the seasons have changed. They claim to have provided two sources. They are not two truly independent sources. Both are simply reporting the perspective of The Australia Institute. That's a think tank. They aren't climatologists. Seasons in ALL of Australia are defined by specific dates. This hasn't changed, not matter what The Australia Institute says. The BOM explicitly defines the seasons on its website - here. I believe we should accept what the BOM says ahead of what The Australia Institute says.

I will not revert again at this stage, because of WP:3RR, but hope the IP editor sees some sense. HiLo48 (talk) 23:36, 7 July 2020 (UTC)

[I have moved the following comment here from the User's talk page]

I am new here, but I have a conscience and basic knowledge. With all due respect, I believe you are taking seasons a bit too literally. Nobody is saying seasons in Australia end at the equinox dates (March 22/Sep 22). The sources merely state that summers seem longer in terms of their HEAT. Many warm cities in the world have summers that go on for as much as 3-4 months, and people would describe them as "long summers". It is colloquial. That has nothing to do with going against the official designation of the seasons. I am not confrontational. I just added two legitimate sources that are used regularly, even in that article. I don't see why they have to be reverted because you personally find them "simply wrong". And if I were so persistent I would've reverted your edits back to my ones in the other articles. But I have the decency and goodwill to not do so. And I gave you the respect and compromise to not do so. About the article's talk page, I'm sorry to say but it's barely active. I would not get any answers soon there. 114.198.20.55 2:00, 8 July 2020 (UTC)

"The sources merely state that summers seem longer..." But that's not what your edit says. You explicitly said "summers have become longer". And they haven't. HiLo48 (talk) 02:34, 8 July 2020 (UTC)

Sorry HiLo48, but I don't see any problems with content or sources [1]. This is only one sentence supported by sources... and commons sense (supported by climate statistics - warming up climate in Sydney and many other places in the World, numbers don't lie). Subtropical-man (✉ | en-2) 21:20, 9 July 2020 (UTC)

Forget about what I said. Okay, maybe I wrote it wrong. But the sources are saying summers are longer and winters are shorter, and that's that. Researchers are mostly academics and would know about these things. Their primary source is BOM and that's how they have collated their evidence. They know what they're talking about. Why should we question their intentions? Even big news companies are reporting their data. What's so iffy about them? They have investigated, using numbers, and can determine that summers are indeed longer. Now this doesn't mean the official season start/end date has been changed. Summers still officially start from Dec 1 and end at Feb 28/29. But dates are just dates. Summers still continue, at least in Sydney, until the end of March. Seasonal changes are gradual. Heck, I could bring in fashion trends and say the same thing when it comes to the 80s 'big hair' being prevalent in the early 90s as well. It's still an 80s fashion trend, despite being found in the early 90s as well. Same way early autumn is usually warm and summery in Sydney, despite being in the official autumn season. Weird analogy, but you should get the gist. Again, these are still legitimate sources (we're talking about Sydney Morning Herald and SBS, and even the BBC although it doesn't mention Sydney). Look, you'd make a point if I sourced a blog or some Twitter post. But I did not. Here are the sources again pertaining to Sydney's long summers and shorter winters (for those who want to look into this case): This, this and this – 114.198.20.55 (talk), 10:51, 11 July 2020 (UTC)