Costa Rica in May
8.3out of 10
Yes, a good time to go
Warm and comfortable: highs around 28°C. Some rain: about 6 rainy days.
28°CAvg high
18°CAvg low
6Rainy days (39 mm)
11:08 hDaylight
05:55Sunrise · 17:03 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Some rain: about 6 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in May varies a lot between years (±3.4 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 | 29°C | 21°C | 256 mm | 26 | – | – | 6.1 |
| February | 29°C | 21°C | 217 mm | 24 | – | – | 6.0 |
| March | 30°C | 21°C | 182 mm | 24 | – | – | 5.9 |
| April | 30°C | 20°C | 82 mm | 13 | – | – | 7.2 |
| May | 28°C | 18°C | 39 mm | 6 | – | – | 8.3 |
| June | 28°C | 17°C | 18 mm | 2 | – | – | 8.8 |
| July | 28°C | 16°C | 11 mm | 1 | – | – | 8.9 |
| August | 31°C | 18°C | 17 mm | 3 | – | – | 8.3 |
| September | 32°C | 20°C | 67 mm | 9 | – | – | 7.2 |
| October | 31°C | 21°C | 128 mm | 18 | – | – | 5.8 |
| November | 30°C | 20°C | 175 mm | 22 | – | – | 5.9 |
| December | 29°C | 21°C | 217 mm | 26 | – | – | 6.0 |
Frequently asked questions
How hot is Costa Rica in May?
Daytime highs average 28°C and nights about 18°C.
When is the best time to visit Costa Rica?
The best months are July, June, May, August.