United States · 1991–2020

Best time to visit
Oakland.

September leads for comfortable weather in Oakland: typically 26.9°C by day, 13.8°C at night, with 80 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.9°C

Typical low13.8°C

Rain in September80 mm

Comfort

September

September · May · August

79climate match

Beach

August

August · July · June

78climate match

Outdoors

October

October · April · September

78climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 2.8°C, 21° 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

52.8° / -6.2°

Feb

55.9° / -4°

Mar

2212° / 0.9°

Apr

5019.2° / 6.7°

May

7424.7° / 12.4°

Jun

6029.2° / 17.2°

Jul

5630.7° / 19.1°

Aug

6630° / 18.1°

Sep

7926.9° / 13.8°

Oct

5920° / 7.6°

Nov

2212° / 1.6°

Dec

55.4° / -3.3°

Monthly climate evidence for Oakland — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.8°C	-6.2°C	72 mm	8.1	9 h 39	5	Strong coverage
February	5.9°C	-4°C	61 mm	6.5	10 h 38	5	Strong coverage
March	12°C	0.9°C	84 mm	9.2	11 h 49	22	Strong coverage
April	19.2°C	6.7°C	128 mm	10.1	13 h 11	50	Strong coverage
May	24.7°C	12.4°C	119 mm	10.8	14 h 20	74	Strong coverage
June	29.2°C	17.2°C	130 mm	9	14 h 57	60	Strong coverage
July	30.7°C	19.1°C	109 mm	7.7	14 h 43	56	Strong coverage
August	30°C	18.1°C	74 mm	6.5	13 h 44	66	Strong coverage
September	26.9°C	13.8°C	80 mm	6.1	12 h 24	79	Strong coverage
October	20°C	7.6°C	109 mm	7.5	11 h 05	59	Strong coverage
November	12°C	1.6°C	103 mm	8.9	9 h 56	22	Strong coverage
December	5.4°C	-3.3°C	74 mm	8.1	9 h 23	5	Strong coverage

What has changed

Oakland runs +1.8°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

+1.9

Feb

+2.5

Mar

+2.4

Apr

+1.4

May

+1.7

Jun

+1.5

Jul

+1.0

Aug

+1.5

Sep

+2.1

Oct

+1.9

Nov

+1.2

Dec

+3.1

September daytime highs, 2011–2025. Last recorded: 30.4°C.

Records at CHARLESTON, 1896–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C23 Jan 1909	-32.8°C19 Jan 1994	95 mm11 Jan 2020	249 mm1950 · driest 0 mm in 1986	129
February	25.0°C26 Feb 2024	-30.6°C13 Feb 1905	69 mm27 Feb 1997	148 mm2011 · driest 3 mm in 1947	130
March	31.7°C24 Mar 1929	-25.6°C6 Mar 1960	106 mm14 Mar 1922	270 mm1945 · driest 4 mm in 1971	130
April	33.3°C11 Apr 1930	-10.0°C2 Apr 2018	96 mm3 Apr 2018	249 mm2011 · driest 6 mm in 1971	129
May	38.3°C31 May 1934	-3.3°C25 May 1925	118 mm7 May 2002	298 mm2002 · driest 13 mm in 1911	129
June	42.2°C28 Jun 1934	1.7°C4 Jun 1945	165 mm28 Jun 1957	355 mm1957 · driest 17 mm in 1936	128
July	43.3°C15 Jul 1936	7.2°C1 Jul 1937	132 mm21 Jul 1973	256 mm1987 · driest 2 mm in 2012	126
August	41.7°C5 Aug 1918	3.9°C31 Aug 1915	114 mm29 Aug 1951	264 mm1981 · driest 1 mm in 2025	125
September	40.0°C6 Sep 1925	-3.9°C30 Sep 1899	152 mm9 Sep 1926	359 mm1926 · driest 1 mm in 2017	124
October	34.4°C1 Oct 2019	-11.7°C29 Oct 1925	92 mm7 Oct 1982	237 mm2001 · driest 2 mm in 1958	125
November	28.9°C1 Nov 1950	-18.9°C30 Nov 1929	70 mm17 Nov 1958	294 mm1985 · driest 5 mm in 1904	128
December	22.8°C15 Dec 1948	-28.9°C28 Dec 1924	73 mm30 Dec 1990	215 mm2015 · driest 0 mm in 1955	128

Typical days per month at CHARLESTON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	2	4
February	0	0	21	2	3
March	1	0	15	3	1
April	5	<1	4	4	<1
May	16	5	<1	4	0
June	26	14	0	4	0
July	29	19	0	3	0
August	28	16	0	2	0
September	20	8	0	3	0
October	7	1	3	3	0
November	<1	0	12	4	<1
December	0	0	22	2	3

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 85); on 2011–2025 it is May (82). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in CHARLESTON’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	<1%	23%	7%	22%	-1.0–6.1°C
February	1%	23%	6%	23%	0.9–9.2°C
March	10%	29%	10%	35%	7.4–15.2°C
April	30%	33%	11%	43%	15.7–21.2°C
May	57%	31%	12%	40%	21.3–26.7°C
June	71%	28%	12%	32%	26.6–31.4°C
July	76%	24%	11%	25%	29.0–33.8°C
August	79%	21%	9%	20%	27.9–32.2°C
September	74%	21%	9%	19%	24.4–29.6°C
October	46%	21%	9%	23%	17.6–23.2°C
November	9%	25%	9%	24%	8.5–14.3°C
December	<1%	24%	8%	24%	1.5–8.0°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.

1897Each stripe is one year’s mean temperature against the 116-year average. Warmest: 2012. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4246083
NOAA station: USC00111436 · CHARLESTON
Station distance: 23.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 39.65°, 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 CHARLESTON is what differs

Charleston→Casey→Greenup→Martinsville→Ashmore→Kansas→

Or put two places side by side: Oakland vs Charleston

Best time to visitOakland.