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The temperatures in Sunnyvale in January are quite cold with temperatures between 7°C and 16°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Sunnyvale during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Sunnyvale in January 2025.
If you’re planning to visit Sunnyvale in the near future, we highly recommend that you review the 14 day weather forecast for Sunnyvale before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 16° / 7° | 5 | 27 | 0 | 107 mm | Good | Sunnyvale in January |
| February | 16° / 7° | 4 | 24 | 0 | 94 mm | Good | Sunnyvale in February |
| March | 17° / 7° | 5 | 26 | 0 | 92 mm | Good | Sunnyvale in March |
| April | 20° / 8° | 2 | 28 | 0 | 40 mm | Good | Sunnyvale in April |
| May | 22° / 10° | 1 | 30 | 0 | 17 mm | Good | Sunnyvale in May |
| June | 26° / 13° | 0 | 30 | 0 | 6 mm | Perfect | Sunnyvale in June |
| July | 28° / 14° | 0 | 31 | 0 | 3 mm | Perfect | Sunnyvale in July |
| August | 28° / 15° | 0 | 31 | 0 | 2 mm | Perfect | Sunnyvale in August |
| September | 28° / 15° | 0 | 30 | 0 | 6 mm | Perfect | Sunnyvale in September |
| October | 24° / 13° | 1 | 30 | 0 | 30 mm | Perfect | Sunnyvale in October |
| November | 19° / 10° | 3 | 27 | 0 | 58 mm | Good | Sunnyvale in November |
| December | 15° / 7° | 5 | 26 | 0 | 90 mm | Good | Sunnyvale in December |