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When is the best time to visit San Jose?
In general the best time to visit San Jose is probably April, when the weather is usually great. The hottest months are March, April, June, while the coldest months are January, July, August.
But ultimately the best time to visit depends on what you want to do:
- The best time for a sun tanning holiday is March, April, June. Average maximum temperatures are up to +79°F in April and it has 0 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during January - December.
- If you want to avoid wet weather, then your choice is June, September, October with the lowest chance of rain.
Average weather in San Jose in different months
This is the average weather in San Jose for each month based on historic data:
January, February, March, April usually has good weather. Average maximum temperature reaches +79°F during March.
In May, June, July, August, September, October, November, December the weather is average. Expect around 171 rainy days, and the precipitation amounts to approximately 753 mm in August.
Climate in San Jose
Here is the detailed breakdown of the climate in San Jose for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +84°F | +86°F | +88°F | +88°F | +86°F | +84°F | +82°F | +84°F | +84°F | +84°F | +84°F | +82°F |
| Average Maximum Temperature | |||||||||||
| +75°F | +77°F | +79°F | +79°F | +77°F | +77°F | +75°F | +75°F | +75°F | +75°F | +75°F | +75°F |
| Minimum Temperature | |||||||||||
| +55°F | +55°F | +55°F | +55°F | +59°F | +59°F | +57°F | +59°F | +57°F | +57°F | +57°F | +55°F |
| Avg. water temperature | |||||||||||
| +85°F | +85°F | +87°F | +87°F | +86°F | +86°F | +85°F | +85°F | +86°F | +85°F | +84°F | +85°F |
| Humidity, % | |||||||||||
| 70 | 67 | 68 | 72 | 81 | 84 | 81 | 82 | 85 | 85 | 81 | 75 |
| Rain, mm | |||||||||||
| 136 | 83 | 108 | 257 | 602 | 679 | 706 | 753 | 670 | 684 | 485 | 266 |
| Snow, mm | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average wind speed, m/s | |||||||||||
| 4 | 5 | 4 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 4 |
| Sunny Days | |||||||||||
| 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Cloud Days | |||||||||||
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy Days | |||||||||||
| 28 | 25 | 27 | 24 | 20 | 18 | 22 | 19 | 16 | 21 | 26 | 29 |
| Snowy Days | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Average Temperature
Here are the average maximum and minimum temperatures in San Jose during the whole year:
The hottest month in San Jose is April with average maximum temperature going up to +79°F. The coldest month is January with the lowest temperatures of +61°F.
Water temperature
Here are the water temperatures in San Jose during the whole year:
San Jose achieves its warmest water temperature in March, where the average sea temperature goes up to +85°F. Coldest water temperature is in November with +82°F in average.
When can you swim in San Jose?
You can swim in San Jose from January to December:
- In January - October the water is very warm (82°F);
- In November the water is warm (77°F - 82°F);
Humidity
The temperature feels different depending on humidity. Here is how humidity in San Jose looks throughout the year, in %:
The most humid month in San Jose is October with average humidity going up to 85%. The least humid month is February with an average humidity of 67%.
Rain
Amount of rainfall in mm. in San Jose during the whole year based on historical data:
The sunniest and driest month is February with approximately 3 sunny days and a total precipitation of around 83 mm. The rainiest and wettest month is August with approximately 19 rainy days and 753 mm of total precipitation.
FAQ
Frequently asked questions about the weather in San Jose:
What is the hottest month in San Jose?
The hottest month in San Jose is April with average maximum temperature of +79°F.
What is the coldest month in San Jose?
The coldest month in San Jose is January with minimum temperatures of +61°F.
Is San Jose worth visiting in winter?
If you are planning to visit San Jose in winter you can expect pretty good weather. The best month is April with +79°F and 0 sunny days.
When does it rain the least in San Jose?
if you're looking to visit San Jose when it rains the least, you should plan your trip for August, July, October. During this time, rainfall is rare with the driest month being February with only 83 mm of rain.
Monthly weather in San Jose
Source of the data
For this page, we’ve looked at the typical weather in San Jose, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.