San Jose in December
8.0out of 10
Yes, a good time to go
Warm and comfortable: highs around 28°C. Some rain: about 8 rainy days.
28°CAvg high
26°CAvg low
8Rainy days (107 mm)
11:17 hDaylight
06:14Sunrise · 17:30 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Some rain: about 8 rainy days
- Rain varies a lot between years (±5.1 days)
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
How reliable is the forecast?
Rain in December varies a lot between years (±5.1 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 27°C | 26°C | 24 mm | 3 | – | – | 8.7 |
| February | 27°C | 26°C | 24 mm | 2 | – | – | 8.8 |
| March | 28°C | 26°C | 19 mm | 2 | – | – | 8.8 |
| April | 29°C | 27°C | 25 mm | 3 | – | – | 8.7 |
| May | 29°C | 27°C | 160 mm | 15 | – | – | 6.7 |
| June | 29°C | 27°C | 333 mm | 24 | – | – | 6.1 |
| July | 28°C | 26°C | 513 mm | 26 | – | – | 6.1 |
| August | 28°C | 26°C | 436 mm | 26 | – | – | 6.1 |
| September | 28°C | 26°C | 403 mm | 24 | – | – | 6.1 |
| October | 28°C | 27°C | 231 mm | 18 | – | – | 6.1 |
| November | 28°C | 27°C | 105 mm | 9 | – | – | 7.8 |
| December | 28°C | 26°C | 107 mm | 8 | – | – | 8.0 |
Frequently asked questions
How hot is San Jose in December?
Daytime highs average 28°C and nights about 26°C.
When is the best time to visit San Jose?
The best months are February, March, January, April.