
Costa Rica
San José in September
29° / 18°Rainy days 30
Good-value San José hotels in September
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San José weather in September
29° / 18°
342 mm
30 / 30
42/100
San José in September ranks #11 of 12 months for comfort: highs around 29°C, lows 18°C, and about 30 rainy days. Compared with August, highs change by 0°C and rainy days by 0.
Compared with the months around it
| Month | High / Low | Rainy days | Index |
|---|---|---|---|
| August | 29° / 19° | 29 | 42 |
| September | 29° / 18° | 30 | 42 |
| October | 28° / 18° | 30 | 42 |
Top tours & tickets in San José
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Public holidays · September 2027
- 09/15Independence Day









