San José in May
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 28°C. Very wet: about 27 rainy days.
28°CAvg high
24°CAvg low
27Rainy days (223 mm)
12:30 hDaylight
05:22Sunrise · 17:52 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Very wet: about 27 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?
Rain in May varies a lot between years (±3.5 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 | 26°C | 22°C | 171 mm | 26 | – | – | 6.1 |
| February | 27°C | 22°C | 115 mm | 22 | – | – | 6.1 |
| March | 28°C | 22°C | 80 mm | 20 | – | – | 6.5 |
| April | 29°C | 23°C | 62 mm | 18 | – | – | 6.7 |
| May | 28°C | 24°C | 223 mm | 27 | – | – | 6.1 |
| June | 27°C | 24°C | 280 mm | 29 | – | – | 6.1 |
| July | 27°C | 23°C | 309 mm | 31 | – | – | 6.1 |
| August | 27°C | 23°C | 259 mm | 30 | – | – | 6.1 |
| September | 27°C | 23°C | 260 mm | 29 | – | – | 6.1 |
| October | 27°C | 23°C | 299 mm | 30 | – | – | 6.1 |
| November | 26°C | 23°C | 261 mm | 26 | – | – | 6.1 |
| December | 26°C | 22°C | 216 mm | 27 | – | – | 6.1 |
Frequently asked questions
How hot is San José in May?
Daytime highs average 28°C and nights about 24°C.
When is the best time to visit San José?
The best months are April, March.