Anaheim climate

Name: Anaheim
Address: US

Anaheim is warmest in August, with average highs of 29 °C, and coldest in December, when nights average 7.1 °C. February is the wettest month (78 mm) and August the driest (0.4 mm). Figures are 1991–2020 climate normals.

Across a full year Anaheim averages 317 mm of rain, 142 days above 25 °C and 0 days below freezing.

United States · 48 m elevation · population 350,742 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 29 °C
Coldest month December 7.1 °C
Driest month August 0 mm
Wettest month February 78 mm
Least cloud August 24 % cloud
Hottest on record July 45 °C
Coldest on record January -1.8 °C
Warmest sea August 21 °C

What to expectAnaheim through the year

Anaheim has a clear annual cycle: average daily highs run from 18 °C in December to 29 °C in August, a swing of 11 °C in mean temperature across the year.

Counted across a normal year, 142 days a year reach 25 °C, 43 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 45 °C, in July.

Rain is strongly seasonal. February averages 78 mm against 0 mm in August — 216 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Anaheim is warmest in August at 21 °C and coldest in February at 15 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	18.7 °C	73 mm	48 %
February	18.9 °C	78 mm	48 %
March	20.0 °C	49 mm	49 %
April	21.9 °C	19 mm	41 %
May	23.2 °C	7 mm	43 %
June	25.5 °C	2 mm	34 %
July	28.1 °C	1 mm	29 %
August	29.4 °C	under 1 mm	24 %
September	28.7 °C	4 mm	26 %
October	25.7 °C	14 mm	33 %
November	22.1 °C	20 mm	38 %
December	18.4 °C	50 mm	44 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	18.7 °C	7.2 °C	12.2 °C	31.9 °C	-1.8 °C	2	0
February	18.9 °C	8.0 °C	12.8 °C	30.7 °C	-0.2 °C	3	0
March	20.0 °C	9.6 °C	14.1 °C	32.3 °C	2.4 °C	4	0
April	21.9 °C	11.1 °C	15.9 °C	37.5 °C	3.6 °C	7	1
May	23.2 °C	13.2 °C	17.6 °C	37.3 °C	7.8 °C	8	2
June	25.5 °C	15.0 °C	19.5 °C	39.0 °C	10.3 °C	15	2
July	28.1 °C	17.3 °C	22.0 °C	45.0 °C	12.5 °C	27	7
August	29.4 °C	18.0 °C	22.8 °C	42.4 °C	13.0 °C	29	12
September	28.7 °C	17.5 °C	22.1 °C	42.9 °C	11.5 °C	25	11
October	25.7 °C	14.6 °C	19.4 °C	40.7 °C	5.9 °C	16	6
November	22.1 °C	10.4 °C	15.5 °C	36.4 °C	1.6 °C	7	1
December	18.4 °C	7.1 °C	12.1 °C	29.7 °C	-1.8 °C	1	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	73 mm	6	10 h/day	48 %	73 %	14 km/h	15.1 °C
February	78 mm	6	11 h/day	48 %	73 %	16 km/h	15.0 °C
March	49 mm	5	12 h/day	49 %	75 %	17 km/h	15.2 °C
April	19 mm	3	13 h/day	41 %	69 %	18 km/h	15.7 °C
May	7 mm	1	14 h/day	43 %	70 %	17 km/h	17.0 °C
June	2 mm	0	14 h/day	34 %	70 %	16 km/h	18.5 °C
July	1 mm	0	14 h/day	29 %	69 %	16 km/h	20.2 °C
August	under 1 mm	0	13 h/day	24 %	69 %	16 km/h	20.7 °C
September	4 mm	0	12 h/day	26 %	70 %	16 km/h	20.5 °C
October	14 mm	2	11 h/day	33 %	68 %	15 km/h	19.3 °C
November	20 mm	3	10 h/day	38 %	67 %	14 km/h	17.6 °C
December	50 mm	5	9.9 h/day	44 %	70 %	13 km/h	15.8 °C

How Anaheim compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Anaheim	29 °C	7.1 °C	317 mm	142
Santa Ana · United States	27 °C	8.4 °C	355 mm	100
Irvine · United States	28 °C	8.6 °C	363 mm	125
Huntington Beach · United States	26 °C	8.4 °C	310 mm	84
Long Beach · United States	28 °C	7.8 °C	291 mm	111

Where Anaheim ranks

Ranking	Position	Value
The driest places in North America in August	4thof 50	0.4 mm
The driest places in North America in June	11thof 50	1.8 mm
The driest places in North America in October	11thof 50	14 mm
The driest places in North America in July	15thof 50	1.2 mm
Places with the best weather in North America in November	17thof 50	95/100
The driest places in North America in September	17thof 50	3.5 mm

Planning a trip? See the best time to visit Anaheim.

QuestionsCommon questions about Anaheim’s climate

When is the best time to visit Anaheim?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, October sit closest to 20 °C on average, August is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Anaheim get?

In August, the warmest month, daily highs average 29 °C. About 43 days a year pass 30 °C. The highest value in the 1991–2020 record is 45 °C.

How cold does it get in winter?

Nights average 7.1 °C in December, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Anaheim?

February, averaging 78 mm over 6 days with rain. The driest month is August with 0 mm. The year as a whole averages 317 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Anaheim rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.