United States · 1991–2020

Best time to visit
Fort Rosecrans.

October leads for comfortable weather in Fort Rosecrans: typically 23.5°C by day, 16.1°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.5°C

Typical low16.1°C

Rain in October13 mm

Comfort

October

October · July · September

96climate match

Beach

August

August · September · July

83climate match

Outdoors

April

April · March · January

94climate match

The weakest month is December, scoring 70 against October’s 96 — days reach only 18.6°C, 5° below 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

7119.1° / 9.9°

Feb

7219° / 10.7°

Mar

7919.5° / 12.2°

Apr

8520.1° / 13.5°

May

8820.7° / 15.4°

Jun

8921.6° / 16.9°

Jul

9223.6° / 18.7°

Aug

8924.7° / 19.5°

Sep

9124.8° / 18.8°

Oct

9623.5° / 16.1°

Nov

8721.4° / 12.4°

Dec

7018.6° / 9.5°

Monthly climate evidence for Fort Rosecrans — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 13 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	19.1°C	9.9°C	47 mm	5.3	15.3°C	10 h 13	71	Strong coverage
February	19°C	10.7°C	48 mm	5.3	15.1°C	10 h 58	72	Strong coverage
March	19.5°C	12.2°C	38 mm	4	15.5°C	11 h 53	79	Strong coverage
April	20.1°C	13.5°C	14 mm	2.3	16.1°C	12 h 56	85	Strong coverage
May	20.7°C	15.4°C	4 mm	1	17.3°C	13 h 49	88	Strong coverage
June	21.6°C	16.9°C	1 mm	0.2	18.6°C	14 h 17	89	Strong coverage
July	23.6°C	18.7°C	3 mm	0.3	20.2°C	14 h 06	92	Strong coverage
August	24.7°C	19.5°C	1 mm	0.2	21.0°C	13 h 21	89	Strong coverage
September	24.8°C	18.8°C	2 mm	0.4	20.5°C	12 h 20	91	Strong coverage
October	23.5°C	16.1°C	13 mm	1.3	19.3°C	11 h 19	96	Strong coverage
November	21.4°C	12.4°C	20 mm	2.7	17.5°C	10 h 26	87	Strong coverage
December	18.6°C	9.5°C	39 mm	4.7	16.0°C	10 h 01	70	Strong coverage

What has changed

Fort Rosecrans runs +1.1°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.3

Feb

+1.3

Mar

+1.3

Apr

+1.2

May

+0.7

Jun

+0.8

Jul

+0.6

Aug

+0.8

Sep

+1.5

Oct

+1.5

Nov

+1.4

Dec

+0.9

October daytime highs, 2011–2025. Last recorded: 22.1°C.

Records at N IS NAS, 1945–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	31.7°C12 Jan 1986	-1.1°C4 Jan 1949	89 mm22 Jan 2024	189 mm1993 · driest 0 mm in 2014	77
February	32.8°C12 Feb 2022	1.1°C15 Feb 1990	53 mm21 Feb 2005	175 mm1998 · driest 0 mm in 2019	78
March	33.3°C12 Mar 2007	4.4°C2 Mar 2023	44 mm17 Mar 1982	161 mm1991 · driest 0 mm in 2019	78
April	34.4°C12 Apr 2008	6.7°C5 Apr 2023	36 mm20 Apr 1988	75 mm1988 · driest 0 mm in 2017	79
May	32.2°C4 May 2004	8.3°C5 May 1960	26 mm8 May 1977	32 mm1977 · driest 0 mm in 2014	79
June	32.8°C27 Jun 1976	12.2°C11 Jun 2021	14 mm10 Jun 1990	17 mm1990 · driest 0 mm in 2025	78
July	34.4°C30 Jul 1980	13.9°C9 Jul 1948	30 mm18 Jul 2015	39 mm2015 · driest 0 mm in 1971	79
August	35.0°C28 Aug 2009	13.9°C25 Aug 1975	47 mm20 Aug 2023	50 mm1977 · driest 0 mm in 1996	78
September	38.9°C27 Sep 2010	12.2°C26 Sep 1948	31 mm10 Sep 1976	36 mm1963 · driest 0 mm in 1995	78
October	38.3°C24 Oct 2017	5.6°C30 Oct 1971	76 mm27 Oct 2004	150 mm2004 · driest 0 mm in 2020	76
November	37.2°C4 Nov 2010	4.4°C19 Nov 1994	48 mm25 Nov 1985	146 mm1965 · driest 0 mm in 1959	78
December	31.1°C16 Dec 2013	1.1°C27 Dec 2015	66 mm22 Dec 1945	142 mm1965 · driest 0 mm in 2005	78

Typical days per month at N IS NAS, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	4	<1	2
February	3	<1	2
March	3	<1	1
April	3	<1	<1
May	2	<1	<1
June	2	0	0
July	9	<1	<1
August	14	1	0
September	13	2	0
October	8	3	<1
November	5	1	<1
December	1	0	1

How often, not how much — every day in N IS NAS’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	25%	17%	5%	17%	15.6–20.6°C
February	24%	16%	5%	17%	15.9–20.7°C
March	24%	15%	5%	13%	16.6–20.9°C
April	32%	8%	2%	5%	17.4–21.4°C
May	46%	3%	<1%	<1%	18.4–21.9°C
June	72%	<1%	0%	0%	19.6–22.5°C
July	97%	<1%	<1%	0%	21.8–25.1°C
August	99%	<1%	<1%	0%	22.7–26.1°C
September	97%	2%	<1%	<1%	22.4–26.8°C
October	82%	4%	1%	2%	20.7–25.1°C
November	50%	11%	3%	8%	18.6–22.7°C
December	25%	14%	4%	13%	16.5–20.2°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.

1946Each stripe is one year’s mean temperature against the 73-year average. Warmest: 2014. Coolest: 1948.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5350095
NOAA station: USW00093112 · N IS NAS
Station distance: 3.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 32.68°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 13 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 N IS NAS is what differs

Coronado→Azure Vista→La Playa→Tent City (historical)→Peninsula→

Or put two places side by side: Fort Rosecrans vs Coronado

Best time to visitFort Rosecrans.

October

August

April

The whole year,without the guesswork.

Fort Rosecrans runs +1.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Fort Rosecrans.

The whole year,
without the guesswork.

Fort Rosecrans runs +1.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.