United States · 1991–2020

Best time to visit
San Diego.

November leads for comfortable weather in San Diego: typically 24.8°C by day, 13°C at night, with 46 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortNovember

Typical high24.8°C

Typical low13°C

Rain in November46 mm

Comfort

November

November · March · February

92climate match

Beach

April

April · May · October

87climate match

Outdoors

January

January · December · February

96climate match

The weakest month is August, scoring 40 against November’s 92 — days average 36°C, 12° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

7319.9° / 7.6°

Feb

8822.8° / 10.5°

Mar

9025.6° / 13.2°

Apr

7929.3° / 16.8°

May

5632° / 20.8°

Jun

4634.7° / 23.1°

Jul

4135.8° / 23.6°

Aug

4036° / 23.7°

Sep

4433.3° / 21.7°

Oct

7029.8° / 17.5°

Nov

9224.8° / 13°

Dec

8021.2° / 9.2°

Monthly climate evidence for San Diego — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	19.9°C	7.6°C	33 mm	3	10 h 33	73	Good coverage
February	22.8°C	10.5°C	35 mm	2.6	11 h 10	88	Good coverage
March	25.6°C	13.2°C	44 mm	3.1	11 h 55	90	Good coverage
April	29.3°C	16.8°C	28 mm	2.3	12 h 47	79	Good coverage
May	32°C	20.8°C	78 mm	3.8	13 h 30	56	Good coverage
June	34.7°C	23.1°C	62 mm	3.7	13 h 53	46	Good coverage
July	35.8°C	23.6°C	67 mm	3.2	13 h 44	41	Good coverage
August	36°C	23.7°C	67 mm	3.3	13 h 08	40	Good coverage
September	33.3°C	21.7°C	119 mm	4.8	12 h 17	44	Good coverage
October	29.8°C	17.5°C	82 mm	2.7	11 h 27	70	Good coverage
November	24.8°C	13°C	46 mm	2.2	10 h 44	92	Good coverage
December	21.2°C	9.2°C	34 mm	2.2	10 h 23	80	Good coverage

Records at ALICE, 1893–2008
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	33.9°C31 Jan 1971	-11.1°C12 Jan 1962	118 mm5 Jan 1958	226 mm1958 · driest 0 mm in 1999	88
February	37.8°C19 Feb 1986	-9.4°C8 Feb 1895	86 mm22 Feb 1958	176 mm1958 · driest 0 mm in 1954	88
March	40.0°C27 Mar 1984	-6.1°C5 Mar 1917	84 mm16 Mar 1931	121 mm1993 · driest 0 mm in 1916	88
April	41.7°C28 Apr 1937	-0.6°C5 Apr 1920	98 mm25 Apr 1966	190 mm1957 · driest 0 mm in 2006	89
May	42.2°C28 May 1927	6.1°C1 May 1925	169 mm26 May 2007	263 mm1941 · driest 0 mm in 1916	88
June	43.9°C15 Jun 1998	11.1°C3 Jun 1919	161 mm28 Jun 1931	320 mm1981 · driest 0 mm in 1982	89
July	43.9°C9 Jul 1939	16.1°C17 Jul 1967	254 mm6 Jul 1942	461 mm2007 · driest 0 mm in 1938	88
August	43.3°C8 Aug 1956	16.1°C15 Aug 1967	185 mm31 Aug 2001	353 mm1980 · driest 0 mm in 1911	87
September	43.3°C6 Sep 2000	7.2°C29 Sep 1942	308 mm12 Sep 1971	477 mm1967 · driest 4 mm in 1920	88
October	38.9°C2 Oct 1938	-2.2°C31 Oct 1993	179 mm24 Oct 1914	277 mm1994 · driest 0 mm in 2001	91
November	36.1°C4 Nov 1988	-5.6°C30 Nov 1911	140 mm15 Nov 2001	210 mm2001 · driest 0 mm in 1894	89
December	34.4°C5 Dec 1977	-11.1°C23 Dec 1989	114 mm22 Dec 1991	164 mm1991 · driest 0 mm in 1999	89

Typical days per month at ALICE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	8	1	1	1
February	12	3	<1	1
March	20	6	<1	2
April	26	14	0	<1
May	30	24	0	2
June	29	28	0	2
July	31	31	0	2
August	31	30	0	2
September	30	26	0	3
October	28	18	<1	2
November	16	5	<1	1
December	9	1	<1	<1

How often, not how much — every day in ALICE’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	52%	15%	3%	13%	16.1–23.2°C
February	64%	15%	4%	12%	19.3–25.8°C
March	79%	12%	3%	7%	22.7–28.3°C
April	88%	11%	4%	8%	26.7–31.7°C
May	84%	15%	8%	14%	29.4–33.8°C
June	83%	17%	8%	17%	32.3–36.2°C
July	87%	13%	5%	11%	34.1–37.7°C
August	87%	13%	6%	12%	34.6–38.0°C
September	78%	22%	10%	23%	31.8–35.6°C
October	85%	14%	6%	11%	28.3–31.9°C
November	76%	13%	4%	9%	22.0–27.8°C
December	56%	14%	3%	13%	17.3–24.0°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1912Each stripe is one year’s mean temperature against the 76-year average. Warmest: 1921. Coolest: 1979.2008

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4726311
NOAA station: USC00410144 · ALICE
Station distance: 17.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 27.76°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from ALICE is what differs

Alice→Rancho Alegre→Coyote Acres→Alice Acres→Coyote Acres Colonia→Amargosa Colonia→

Or put two places side by side: San Diego vs Alice

Best time to visitSan Diego.