San Jose in August
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 28°C. Very wet: about 26 rainy days.
28°CAvg high
26°CAvg low
26Rainy days (436 mm)
12:25 hDaylight
05:48Sunrise · 18:12 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Very wet: about 26 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in August is fairly consistent from year to year (2.8 days). 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 August?
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.