San Jose, California, United States climate

Average temperatures, precipitation and all-time records for San Jose, California, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 79°F, and its coldest is January, with an average low of 43°F.

San Jose, officially the City of San José, is the most populous city in the San Francisco Bay Area and Northern California, and the 13th-most populous in the United States, with an estimated 989,814 residents as of 2025. via Wikipedia

How today compares

Latest recorded day: 2026-07-24. Each reading placed on San Jose, California, United States's own ±7-day seasonal distribution.

High 78°F Normal · 48th pct

Low 59°F High · 81st pct

Feels-like 81°F Above Normal · 64th pct

Humidity 13.2 g/m³ Very High · 96th pct

Wind 12 mph Near Record · 99th pct

Gust 16 mph Very Low · 3rd pct

Precip 0.00 in Dry

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San Jose average temperatures by month

Typical daily high and low, and average precipitation, for each month in San Jose, California, United States, based on 1980–2026 records. The wettest month is January (0.20 in on an average day).

Month	Avg high	Avg low	Avg precip
January	58°F	43°F	0.20 in
February	60°F	44°F	0.20 in
March	63°F	46°F	0.10 in
April	66°F	47°F	0.10 in
May	70°F	49°F	0.00 in
June	75°F	53°F	0.00 in
July	79°F	56°F	0.00 in
August	79°F	57°F	0.00 in
September	78°F	56°F	0.00 in
October	74°F	53°F	0.00 in
November	63°F	47°F	0.10 in
December	57°F	43°F	0.10 in

Jan 35°–65°

Feb 37°–69°

Mar 40°–73°

Apr 42°–76°

May 45°–81°

Jun 48°–87°

Jul 52°–87°

Aug 53°–88°

Sep 51°–88°

Oct 48°–85°

Nov 40°–71°

Dec 35°–64°

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.

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Record extremes

Hottest day on record: 105°F on 2017-09-03
Coldest day on record: 22°F on 1990-12-22

All San Jose weather records →

Percentiles compare each day to San Jose, California, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →