Peak in August
Coolest in December
Heavy in February
Peak in dry season
San Jose Monthly Weather Guide
Click any month to explore daily weather forecasts
January
February
March
April
May
June
July
August
September
October
November
December
Essential Travel Info for San Jose
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Best Time to Visit San Jose
Location, climate overview & historical trends
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📍 37.3382° N, 121.8863° W
Open in Google MapsSan Jose is a prominent destination in United States.
Located at 37.34°N latitude,San Jose experiences a temperate climate with four distinct seasons.
Based on 30 years of data, August is the warmest month (avg. 29°C), while December is the coolest. February sees the most rain (26% chance), making August the driest month.
Historical Climate Trend
30-Year Analysis+1.64°C
Total over 30 years
+0.55°C
Per decade
Linear regression analysis of historical maximum temperatures for San Jose, based on 1995-2024 satellite data from NASA POWER.
Best Time to Visit
NASA POWER Data (1991-2021)January, February, March
Best months to visit
22°C
Avg High
Based on 30 years of NASA satellite data,San Jose receives approximately 310mm of rainfall annually. These months offer optimal temperatures and minimal rain probability for your visit.
Climate Trends
EXCLUSIVE1995-2040 Temperature Trend
1995 Avg
21.1°
2024 Avg
22.3°
2040 Proj
22.7°
+0.55°C
per decade (observed)
+0.24°C
per decade (CMIP6)
🌡️ San Jose has warmed by +1.6°C since 1995. By 2040, an additional +0.4°C is projected (based on CMIP6 rate of 0.242°C/decade), for a total of +2.0°C from 1995 baseline.
NASA POWER (1995-2024) + CMIP6 (CMCC_CM2_VHR4, EC_Earth3P_HR, FGOALS_f3_H, HiRAM_SIT_HR, MRI_AGCM3_2_S, NICAM16_8S)
Travel Intelligence
Exclusive flight analytics & health data for San Jose
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Flight Connectivity Analysis
Airport traffic data & seasonal patterns
Balanced traffic
0
slots per day
Peak
Jun
Low
Jul
Monthly Traffic Distribution
Key Connections
Health & Safety Advisory
CDC travel health recommendations
No Special Vaccinations Required
Standard travel precautions apply
Source: CDC Travelers' Health
View Complete Health GuideSan Jose Climate Data by Month
Historical temperature and precipitation averages
| Month | Avg High (°C) | Rain Probability (%) | Status |
|---|---|---|---|
| January | 15°C | 24% | 😊 Pleasant |
| February | 16°C | 26% | 😊 Pleasant |
| March | 17°C | 25% | 😊 Pleasant |
| April | 20°C | 12% | ✨ Perfect |
| May | 23°C | 6% | ✨ Perfect |
| June | 27°C | 0% | ✨ Perfect |
| July | 28°C | 0% | ✨ Perfect |
| August | 29°C | 0% | 😊 Pleasant |
| September | 28°C | 1% | ✨ Perfect |
| October | 24°C | 6% | ✨ Perfect |
| November | 18°C | 17% | 😊 Pleasant |
| December | 15°C | 25% | 😊 Pleasant |
Weather in Cities Near San Jose
Explore climate data for popular destinations within easy reach
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Compare weather conditions with nearby destinations for your trip planning
Compare San Jose Weather vs Popular Destinations
San Jose Weather FAQ
When is the best time to visit San Jose?
Honestly, look for months with mild temperatures (20°C-25°C) and low rain chance. Based on historical data, January, February, March are usually great choices.
When is the hottest month in San Jose?
August is historically the hottest month in San Jose with average highs of 29°C.
When does it rain the most in San Jose?
February typically sees the highest probability of rain (26%).
Is San Jose expensive?
Prices vary by season. The "Perfect" weather months usually coincide with peak tourist season and higher prices, while the rainy or cold months offer better deals.