May Rainfall Averages for Costa Rica
The tables below give May averages for rainfall at cities and other locations in Costa Rica. Each place has a total for how many days of wet weather it usually gets this month and for the normal amount of precipitation.
You can jump to a separate table for each region of the country: North – Central Costa Rica covering the provinces of Alajuela and Heredia, Western Costa Rica comprising Puntarenas and Guanacaste provinces, and Central & Eastern Costa Rica taking in San José, Cartago and Limón provinces.
The precipitation amounts are averages of weather data collected over many years.
North – Central Costa Rica
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 21 | Alajuela | 10.1 | 255 |
| 21 | Barva | 12.9 | 328 |
| – | Heredia | 13.0 | 329 |
| 19 | Los Chiles | 6.3 | 161 |
| 21 | Quesada | 11.2 | 285 |
| 19 | Upala | 7.9 | 201 |
Western Costa Rica
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 23 | Buenos Aires | 16.9 | 428 |
| – | Cañas | 6.9 | 175 |
| – | Filadelfia | 9.6 | 244 |
| 12 | Liberia | 7.9 | 201 |
| 18 | Nicoya | 8.7 | 220 |
| 17 | Puntarenas | 8.7 | 221 |
| 22 | Quepos | 16.4 | 416 |
| 23 | Río Claro | 20.2 | 512 |
Central & Eastern Costa Rica
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 21 | Cartago | 6.8 | 173 |
| 22 | Guapiles | 16.9 | 430 |
| 18 | Limón | 13.4 | 342 |
| – | San Isidro | 12.9 | 327 |
| 20 | San José | 9.3 | 237 |
| – | Sixaola | 11.1 | 283 |
| – | Turrialba | 9.2 | 233 |
Reference
Instituto Meteorológico Nacional De Costa Rica. Climatic Data..
World Meteorological Organization. World Weather Information Service. Costa Rica.