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Bayview-Hunters Point, California climate

Csb Warm-summer Mediterranean

Bayview-Hunters Point has a mildly seasonal mild-temperate climate (Warm-summer Mediterranean, Köppen Csb). The hottest month is September with an average daily high near 70°F, while the coldest is January averaging around 47°F at night. Precipitation totals about 23 inches a year and is strongly seasonal — December alone averages 4.8 inches while July barely receives 0.01 inches.

☀️ Summers

Mild

Highs near 70°F in September.

About 4 days a year above 90 °F

❄️ Winters

Cool

Lows near 47°F in January.

🌧️ Rain

Moderate rainfall

About 23 in of rain a year.

Wettest in December

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

−0.3 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Bayview-Hunters Point climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	58	60	62	63	64	67	66	68	70	70	64	58
Avg temp (°F)	52	54	56	56	58	60	60	62	63	62	57	53
Avg low (°F)	47	48	49	50	51	53	54	56	56	54	51	47
Precipitation (in)	4.4	4.4	3.2	1.6	0.7	0.2	0.0	0.1	0.1	0.9	2.6	4.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	58	60	62	63	64	67
Avg temp (°F)	52	54	56	56	58	60
Avg low (°F)	47	48	49	50	51	53
Precipitation (in)	4.4	4.4	3.2	1.6	0.7	0.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	66	68	70	70	64	58
Avg temp (°F)	60	62	63	62	57	53
Avg low (°F)	54	56	56	54	51	47
Precipitation (in)	0.0	0.1	0.1	0.9	2.6	4.8

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	11	11	7	4	2	0.7	1	1	4	8	12
Days with high ≥ 90°F (days)	—	—	—	0.2	0.3	0.5	0.2	0.3	1	0.9	—	—

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	11	11	11	7	4	2
Days with high ≥ 90°F (days)	—	—	—	0.2	0.3	0.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	0.7	1	1	4	8	12
Days with high ≥ 90°F (days)	0.2	0.3	1	0.9	—	—

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	60	61	60	55	54	48	58	59	51	47	51	57
Clear days (≤ 30% cloud)	7	6	7	8	8	10	4	4	9	11	10	8
Partly cloudy days (30–70%)	9	8	11	11	11	11	15	14	11	11	10	9
Cloudy days (≥ 70%)	15	14	14	11	12	9	12	13	10	9	10	14
Relative humidity (%)	84	83	82	80	78	74	74	73	70	69	76	82
Wind speed (mph)	4.8	5.1	5.1	5.4	5.4	5.5	5.1	5.0	4.5	4.3	4.4	5.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	60	61	60	55	54	48
Clear days (≤ 30% cloud)	7	6	7	8	8	10
Partly cloudy days (30–70%)	9	8	11	11	11	11
Cloudy days (≥ 70%)	15	14	14	11	12	9
Relative humidity (%)	84	83	82	80	78	74
Wind speed (mph)	4.8	5.1	5.1	5.4	5.4	5.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	58	59	51	47	51	57
Clear days (≤ 30% cloud)	4	4	9	11	10	8
Partly cloudy days (30–70%)	15	14	11	11	10	9
Cloudy days (≥ 70%)	12	13	10	9	10	14
Relative humidity (%)	74	73	70	69	76	82
Wind speed (mph)	5.1	5.0	4.5	4.3	4.4	5.1

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at San Francisco Dwtn (NOAA GHCN station USW00023272), about 6 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →