Atlantis climate — normals and trends

Q: What is the climate of Atlantis?

Atlantis has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 373 mm of precipitation per year.

Q: What is the hottest day ever recorded in Atlantis?

The hottest day measured in Atlantis between 1940 and 2025 was 3 March 2015, reaching 41.6 °C.

Q: What is the coldest day in Atlantis?

The coldest day measured in Atlantis between 1940 and 2025 was 17 June 1988, at -1.9 °C.

Q: Does it snow in Atlantis?

Almost never: Atlantis sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Atlantis warmed?

Yes: Atlantis warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Atlantis?

The wettest day measured in Atlantis between 1940 and 2025 was 15 March 1943, with 57 mm of rain in 24 hours.

Q: What was the windiest day in Atlantis?

The windiest day measured in Atlantis between 1940 and 2025 was 2 December 1943, with winds reaching 69.7 km/h.

Q: What is the warmest month in Atlantis?

The warmest month in Atlantis is January (21.9 °C on average); the coldest is July (11.4 °C).

Q: How much does it rain in Atlantis?

Atlantis receives on average 373 mm of precipitation per year, spread over about 60 rainy days.

Q: Is it sunny in Atlantis?

Atlantis gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.

Atlantis (South Africa) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 373 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is January (21.9 °C on average) and the coldest is July (11.4 °C). Rainfall peaks in June.

Atlantis averages 0 frost days, 42 hot days (≥ 30 °C) and 60 rainy days per year.

Atlantis has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.6 °C (on 3 March 2015) and the coldest -1.9 °C (on 17 June 1988).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

AtlantisWestern Cape

coords: -33.57°, 18.48°
period: 1940–2025 · 86 yrs

CsbWarm-summer MediterraneanWarmest monthJanuaryColdest monthJulyWettest monthJuneDriest monthFebruary

Mean daily temperature

16.8°C

Average daily high

22.9°C

Average daily low

11.9°C

Annual rainfall

373mm

Sunshine / day

10.9h

Mean relative humidity

72%

Average peak wind

21.2km/h

Seasonal range

10.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

42 d/yr

Rainy days (≥ 1 mm)

60 d/yr

Annual snowfall

0.0 cm

Average feels-like high

22.3 °C

Average feels-like low

10.3 °C

Average peak gust

40.3 km/h

Tropical nights (≥ 20 °C)

4 d/yr

Solar radiation

19.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.3 °C

since 1940

+0.2 °C per decade · r² = 0.57 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

41.6 °C

3 March 2015

Coldest day

-1.9 °C

17 June 1988

Wettest day

57 mm

15 March 1943

Windiest day

69.7 km/h

2 December 1943

Strongest gust

117.4 km/h

16 May 1984

Hottest feels-like

43.4 °C

23 January 1979

Coldest feels-like

-5.8 °C

5 August 1943

Sunniest day

14.0 h

14 December 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.7 °C28 January 2025	1.9 °C12 July 2025	17.7 °C	312 mm	61	0
2024	38.8 °C28 February 2024	0.8 °C3 August 2024	17.5 °C	460 mm	46	0
2023	35.6 °C30 November 2023	1.1 °C12 July 2023	17.2 °C	482 mm	43	0
2022	39.1 °C22 January 2022	1.5 °C21 July 2022	17.6 °C	299 mm	61	0
2021	36.7 °C28 February 2021	1.6 °C16 July 2021	17.3 °C	439 mm	44	0
2020	37.0 °C25 February 2020	1.7 °C8 July 2020	17.2 °C	381 mm	45	0
2019	37.7 °C14 February 2019	0.1 °C16 June 2019	17.5 °C	258 mm	42	0
2018	37.7 °C22 October 2018	1.0 °C18 August 2018	17.6 °C	397 mm	58	0
2017	38.4 °C7 December 2017	1.6 °C27 July 2017	17.5 °C	255 mm	70	0
2016	38.6 °C17 January 2016	-0.2 °C3 July 2016	17.8 °C	329 mm	66	2
2015	41.6 °C3 March 2015	0.1 °C15 July 2015	17.6 °C	264 mm	48	0
2014	39.0 °C16 February 2014	0.6 °C7 July 2014	17.5 °C	416 mm	49	0
2013	38.1 °C4 March 2013	2.5 °C31 July 2013	17.1 °C	566 mm	51	0
2012	38.2 °C15 January 2012	1.7 °C5 July 2012	17.1 °C	474 mm	56	0
2011	38.6 °C5 January 2011	1.9 °C6 August 2011	17.1 °C	370 mm	51	0
2010	39.9 °C7 March 2010	1.0 °C13 July 2010	17.0 °C	353 mm	49	0
2009	38.2 °C3 April 2009	2.7 °C26 July 2009	17.3 °C	463 mm	42	0
2008	37.3 °C7 December 2008	2.7 °C13 July 2008	17.1 °C	533 mm	50	0
2007	38.5 °C25 January 2007	1.5 °C10 July 2007	17.0 °C	494 mm	41	0
2006	37.8 °C6 March 2006	2.9 °C26 July 2006	17.1 °C	349 mm	41	0
2005	37.9 °C6 February 2005	1.7 °C28 June 2005	17.1 °C	406 mm	45	0
2004	39.9 °C4 January 2004	0.9 °C28 June 2004	17.1 °C	419 mm	37	0
2003	38.4 °C10 February 2003	1.5 °C3 August 2003	16.9 °C	318 mm	41	0
2002	37.6 °C6 December 2002	1.4 °C3 June 2002	16.8 °C	451 mm	43	0
2001	36.4 °C9 February 2001	1.8 °C9 June 2001	17.2 °C	557 mm	36	0
2000	39.5 °C19 January 2000	2.6 °C17 July 2000	17.4 °C	310 mm	43	0
1999	37.4 °C27 December 1999	2.7 °C7 June 1999	17.8 °C	349 mm	64	0
1998	38.4 °C3 January 1998	2.2 °C23 July 1998	16.9 °C	338 mm	41	0
1997	35.2 °C18 October 1997	0.8 °C19 June 1997	16.7 °C	250 mm	43	0
1996	36.4 °C20 January 1996	-0.1 °C18 July 1996	16.1 °C	645 mm	36	1
1995	38.1 °C4 February 1995	1.0 °C23 July 1995	16.7 °C	377 mm	49	0
1994	38.2 °C2 November 1994	1.4 °C13 July 1994	17.1 °C	380 mm	54	0
1993	39.2 °C4 January 1993	1.7 °C19 July 1993	17.2 °C	462 mm	48	0
1992	36.6 °C4 January 1992	1.3 °C30 July 1992	16.5 °C	422 mm	32	0
1991	37.7 °C29 March 1991	1.9 °C28 July 1991	16.7 °C	555 mm	34	0
1990	36.1 °C4 February 1990	0.7 °C24 June 1990	16.8 °C	442 mm	50	0
1989	37.1 °C7 February 1989	0.1 °C17 August 1989	16.7 °C	505 mm	36	0
1988	37.3 °C31 December 1988	-1.9 °C17 June 1988	16.8 °C	424 mm	41	1
1987	33.8 °C7 February 1987	2.3 °C7 June 1987	16.6 °C	489 mm	21	0
1986	37.4 °C18 January 1986	0.6 °C3 July 1986	17.2 °C	460 mm	39	0
1985	37.9 °C19 November 1985	2.6 °C13 July 1985	17.2 °C	498 mm	54	0
1984	37.9 °C2 April 1984	2.3 °C26 August 1984	17.0 °C	468 mm	53	0
1983	34.5 °C7 January 1983	0.7 °C10 August 1983	16.5 °C	463 mm	33	0
1982	36.8 °C27 January 1982	0.5 °C7 June 1982	16.4 °C	372 mm	27	0
1981	37.2 °C6 March 1981	1.3 °C17 June 1981	16.9 °C	413 mm	52	0
1980	36.7 °C4 February 1980	1.6 °C2 July 1980	17.0 °C	384 mm	42	0
1979	40.9 °C23 January 1979	1.3 °C25 July 1979	16.8 °C	312 mm	38	0
1978	37.6 °C22 January 1978	2.4 °C13 June 1978	16.9 °C	324 mm	49	0
1977	37.4 °C26 February 1977	1.7 °C27 June 1977	16.9 °C	600 mm	42	0
1976	36.6 °C29 January 1976	0.6 °C16 July 1976	16.7 °C	446 mm	35	0
1975	39.9 °C16 February 1975	0.0 °C2 August 1975	16.7 °C	382 mm	55	0
1974	37.7 °C10 February 1974	1.4 °C24 July 1974	16.8 °C	473 mm	56	0
1973	35.1 °C21 December 1973	1.8 °C28 July 1973	16.9 °C	351 mm	53	0
1972	39.5 °C12 November 1972	1.0 °C26 June 1972	16.9 °C	254 mm	46	0
1971	37.1 °C23 February 1971	1.0 °C7 June 1971	16.2 °C	308 mm	40	0
1970	36.0 °C13 March 1970	-0.7 °C23 July 1970	16.1 °C	349 mm	37	2
1969	39.2 °C22 March 1969	0.1 °C20 July 1969	16.1 °C	384 mm	26	0
1968	36.7 °C5 February 1968	0.3 °C9 August 1968	15.8 °C	497 mm	21	0
1967	36.4 °C11 February 1967	0.7 °C27 July 1967	16.2 °C	302 mm	40	0
1966	39.0 °C29 January 1966	1.7 °C8 August 1966	16.3 °C	292 mm	42	0
1965	37.2 °C27 January 1965	0.2 °C20 June 1965	15.9 °C	364 mm	26	0
1964	37.3 °C9 March 1964	0.3 °C26 June 1964	16.1 °C	362 mm	31	0
1963	36.7 °C1 January 1963	1.7 °C13 July 1963	17.0 °C	389 mm	51	0
1962	38.0 °C2 January 1962	1.6 °C14 June 1962	16.2 °C	396 mm	28	0
1961	37.9 °C24 January 1961	1.2 °C6 August 1961	16.2 °C	370 mm	36	0
1960	38.7 °C13 December 1960	1.1 °C30 June 1960	16.4 °C	299 mm	42	0
1959	36.7 °C4 February 1959	2.1 °C3 August 1959	16.1 °C	299 mm	34	0
1958	37.1 °C26 December 1958	1.8 °C2 June 1958	16.2 °C	225 mm	27	0
1957	34.9 °C26 December 1957	1.1 °C3 August 1957	15.7 °C	485 mm	21	0
1956	38.0 °C5 January 1956	1.2 °C11 June 1956	16.1 °C	354 mm	44	0
1955	37.6 °C16 January 1955	0.6 °C7 August 1955	16.0 °C	310 mm	48	0
1954	34.6 °C8 February 1954	0.5 °C30 June 1954	15.8 °C	415 mm	36	0
1953	35.1 °C11 December 1953	0.3 °C14 August 1953	16.7 °C	170 mm	32	0
1952	37.9 °C14 February 1952	1.9 °C10 July 1952	16.6 °C	266 mm	36	0
1951	38.0 °C31 January 1951	2.4 °C26 July 1951	16.3 °C	246 mm	22	0
1950	34.8 °C4 January 1950	0.9 °C28 July 1950	16.8 °C	207 mm	32	0
1949	38.5 °C15 March 1949	2.9 °C17 July 1949	16.9 °C	181 mm	41	0
1948	38.7 °C20 January 1948	-0.2 °C16 August 1948	16.4 °C	212 mm	36	1
1947	33.9 °C17 March 1947	1.9 °C26 July 1947	16.0 °C	237 mm	24	0
1946	37.8 °C10 March 1946	-0.7 °C29 July 1946	16.7 °C	195 mm	50	1
1945	38.7 °C13 November 1945	1.9 °C15 June 1945	16.9 °C	212 mm	54	0
1944	35.9 °C14 January 1944	0.2 °C13 June 1944	16.1 °C	350 mm	21	0
1943	37.1 °C18 December 1943	0.2 °C21 July 1943	16.2 °C	307 mm	33	0
1942	35.7 °C20 March 1942	0.4 °C22 July 1942	16.5 °C	268 mm	41	0
1941	38.5 °C30 January 1941	2.6 °C3 July 1941	16.5 °C	299 mm	36	0
1940	38.3 °C2 February 1940	3.0 °C3 August 1940	16.5 °C	350 mm	35	0

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

24.0 °C

+1.1 °C

Hot days (≥ 30 °C)

61 d/yr

+19

Frost days (< 0 °C)

0 d/yr

Annual rainfall

312 mm

-61 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.5 °C	-0.8 °C	3 mm	-8 mm
Feb	28.8 °C	+0.2 °C	0 mm	-10 mm
Mar	28.1 °C	+0.9 °C	12 mm	-1 mm
Apr	25.9 °C	+1.8 °C	29 mm	+1 mm
May	22.0 °C	+1.4 °C	40 mm	-9 mm
Jun	18.3 °C	+0.3 °C	79 mm	+10 mm
Jul	17.1 °C	+0.1 °C	79 mm	+19 mm
Aug	17.6 °C	+0.1 °C	47 mm	-7 mm
Sep	21.3 °C	+1.9 °C	9 mm	-24 mm
Oct	23.9 °C	+1.4 °C	8 mm	-14 mm
Nov	29.0 °C	+4.0 °C	2 mm	-14 mm
Dec	28.9 °C	+2.0 °C	5 mm	-7 mm

The year's extremes

Hottest day

36.7 °C

28 Jan 2025

Coldest day

1.9 °C

12 Jul 2025

Wettest day

28.1 mm

25 Jun 2025

Windiest day

38.2 km/h

14 Nov 2025

Strongest gust

70.9 km/h

14 Nov 2025

Hottest feels-like

39.2 °C

28 Jan 2025

Coldest feels-like

-1.2 °C

12 Jul 2025

Sunniest day

14.0 h

18 Dec 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Atlantis?

Atlantis has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 373 mm of precipitation per year.

What is the hottest day ever recorded in Atlantis?

The hottest day measured in Atlantis between 1940 and 2025 was 3 March 2015, reaching 41.6 °C.

What is the coldest day in Atlantis?

The coldest day measured in Atlantis between 1940 and 2025 was 17 June 1988, at -1.9 °C.

Does it snow in Atlantis?

Almost never: Atlantis sees virtually no snow, with about 0 frost days per year.

Has the climate of Atlantis warmed?

Yes: Atlantis warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Atlantis?

The wettest day measured in Atlantis between 1940 and 2025 was 15 March 1943, with 57 mm of rain in 24 hours.

What was the windiest day in Atlantis?

The windiest day measured in Atlantis between 1940 and 2025 was 2 December 1943, with winds reaching 69.7 km/h.

What is the warmest month in Atlantis?

The warmest month in Atlantis is January (21.9 °C on average); the coldest is July (11.4 °C).

How much does it rain in Atlantis?

Atlantis receives on average 373 mm of precipitation per year, spread over about 60 rainy days.

Is it sunny in Atlantis?

Atlantis gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.

Are there tropical nights in Atlantis?

Yes: Atlantis has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Atlantis?

In Atlantis, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 23 January 1979, and the lowest was -5.8 °C on 5 August 1943.

Compare Atlantis with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Atlantis

Other cities — South Africa

All cities in South Africa →