Average humidity in San Rafael
On this page you find more information about the monthly relative humidity over the year in San Rafael (Alajuela), Costa Rica.
San Rafael's humidity levels vary throughout the year. The highest levels occur in October, reaching 87% (very high), while the lowest is recorded in March at 66%.
Throughout the year, the average humidity in San Rafael is 77%.
Humidity plays an important role in how temperatures are felt. During the warmest month, April, the maximum average temperature is around 27°C (81°F). Combined with high humidity during this period, the temperature can feel even warmer than the thermometer shows.
During the coldest month, November, the maximum average temperature is around 25°C (77°F). This period has high humidity. Check out our detailed temperature page for more information.
San Rafael Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Rafael - and find the best time to visit.
San Rafael 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full San Rafael climate overview or explore weather in Costa Rica.
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Where to go in September - average daytime high across popular destinations.
Tamarindo
30°C (86°F) Cahuita29°C (84°F) Santa Teresa29°C (84°F) Herradura28°C (82°F) Puerto Viejo de Talamanca29°C (84°F) Fortuna29°C (84°F) Jacó28°C (82°F) San José24°C (75°F) 
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