Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
San Jose, California, United States Average Monthly Weather
Weather score50Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 21°C, sunshine averages 8.6h per day, and rainfall totals about 534mm. Sea temperatures average 13°C across the year.
Annual weather
Annual averages
Temp
21°C
Rain
534mm
Annual total
Sun
8.6h
Sea
13°C
Weather score
50
Mixed avg
Seasonal climate calendar
Trip feel
Drier
Rainfall averages 75mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare San Jose, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
November18°C average high
November is on the cooler side of San Jose's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
November75mm average rain
November is wetter than San Jose's yearly average, so flexible plans matter more.
Driest monthsApril to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
November5.9 hours average sun
November is below San Jose's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
November13°C average sea
November is close to San Jose's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
November33 weather score
November scores below San Jose's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
