Weather in Port of San Jose: October
| Average day temperature: | 83.4°F | |
| Average night temperature: | 76.5°F | |
| Sea water temperature: | 85.5°F | |
| Number of sunny days: | 2 days | |
| Day length: | 11.6 - 12.0 hours | |
| Number of rainy days: | 5 days | |
| Precipitation totals: | 3.0 in. | |
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| Port of San Jose |
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| Port of San Jose |
Air temperature in October, °F
The highest day temperature during October of 2025 was 84°F. At the same time the lowest night temperature was 73°F. Daily and nightly averages during October were 82.7°F and 76.0°F.
Sea water temperature in Port of San Jose in October, °F
The average sea water temperature in October of 2025 was 84.8°F. The highest and lowest sea temperatures during the month were 85.5°F and 83.8°F.
Mostly all days in October are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in October, in.
Precipitation total value in Port of San Jose in October is 3.0 in. Other months of the year show relatively similar values.
The average wind speed value in October is 5.5 mph It makes October 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 October is: 5.0.
Best time for vacation in Port of San Jose
Port of San Jose on a weather map

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