Weather in San Jose: May
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Average day temperature: | 76.9°F |
| Average night temperature: | 62.6°F | |
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Sea water temperature: | 85.1°F |
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Number of sunny days: | 2 days |
| Day length: | 12.5 - 12.7 hours | |
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Number of rainy days: | 22 days |
| Precipitation totals: | 18.1 in. | |
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| San Jose |
temperature
| San Jose |
Air temperature in May, °F
The highest day temperature during May of 2025 was 77°F. At the same time the lowest night temperature was 59°F. Daily and nightly averages during May were 74.1°F and 61.2°F.
Sea water temperature in San Jose in May, °F
The average sea water temperature in May of 2025 was 85.9°F. The highest and lowest sea temperatures during the month were 86.7°F and 85.1°F.
Mostly all days in May are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in San Jose in May is 18.6 in. It makes may one of the most rainy months of the year.
The average wind speed value in May is 2.8 mph It makes May one of the least windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 5.1.
Best time for vacation in San Jose
San Jose on a weather map
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