August Rainfall Averages for Costa Rica
The tables below give August 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 | 8.9 | 225 |
| 22 | Barva | 10.1 | 255 |
| – | Heredia | 9.6 | 243 |
| 26 | Los Chiles | 8.7 | 220 |
| 26 | Quesada | 14.5 | 368 |
| 27 | Upala | 11.6 | 295 |
Western Costa Rica
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 24 | Buenos Aires | 17.8 | 452 |
| – | Cañas | 8.1 | 205 |
| – | Filadelfia | 7.7 | 196 |
| 15 | Liberia | 8.4 | 213 |
| 21 | Nicoya | 9.6 | 244 |
| 19 | Puntarenas | 7.1 | 180 |
| 26 | Quepos | 19.3 | 491 |
| 25 | Río Claro | 23.1 | 587 |
Central & Eastern Costa Rica
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 22 | Cartago | 5.9 | 149 |
| 25 | Guapiles | 18.7 | 475 |
| 19 | Limón | 11.8 | 299 |
| – | San Isidro | 14.7 | 374 |
| 22 | San José | 8.6 | 219 |
| – | Sixaola | 10.1 | 257 |
| – | Turrialba | 9.9 | 251 |
Reference
Instituto Meteorológico Nacional De Costa Rica. Climatic Data..
World Meteorological Organization. World Weather Information Service. Costa Rica.