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San Ramón Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Ramón.
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Climate overview of San Ramón
The climate in San Ramón, Alajuela, Costa Rica, is remarkably consistent, with temperatures year-round averaging 28°C (82°F). The warmest month is March at 29°C (84°F), and the coolest is November at 27°C (81°F).
With around 2857 mm (112 in) of annual rainfall, San Ramón has a notably wet climate. However, this rainfall is not evenly distributed, the city has distinct dry (February to March) and wet (May to November) seasons. The wettest month is October. Sunshine peaks in January, when the city sees around 9.5 hours of sunshine per day.
San Ramón Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Ramón - and find the best time to visit.
Monthly Temperature in San Ramón
In San Ramón temperatures are generally consistent throughout the year. Average daytime temperatures reach a comfortable 29°C (84°F) in March. In November, the coolest month of the year, temperatures drop to a comfortable 27°C (81°F).
At night, temperatures range from around 20°C (68°F) in March to 18°C (64°F) in November.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Ramón
San Ramón experiences significant rainfall throughout the year, averaging 2857 mm (112 in) of precipitation annually. San Ramón can be quite wet during October, receiving approximately 441 mm (17 in) of precipitation over 23 rainy days.
In contrast, during the driest month (February), you will experience much drier conditions, with 39 mm (1.5 in) of precipitation spread across 8 rainy days. For more details, please visit our San Ramón Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in San Ramón
San Ramón can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 9.5 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Santamaria, Costa Rica (41 KM, 25 Miles).
Daily hours of sunshine
Data from: Santamaria, Costa Rica (41 KM, 25 Miles).
Humidity in San Ramón by Month
The city experiences its highest humidity in October, reaching 88%. In April, the humidity drops to its lowest level at 79%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Santamaria, Costa Rica (41 KM, 25 Miles).
Best Time to Visit San Ramón
The most comfortable overall weather for exploring San Ramón is usually found in January, February, March and April. Conditions are generally least comfortable in May, June, July, August, September, October and November.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
excellent
Feb
excellent
Mar
excellent
Apr
excellent
May
very wet
Jun
very wet
Jul
very wet
Aug
very wet
Sep
very wet
Oct
very wet
Nov
very wet
Dec
very good
- Best overall: January, February, March and April
- Warmest weather: February, March, April and May
- Most sunshine: January and March
- Fewest rainy days: February and March
- Seasonal pattern: Distinct dry (February to March) and wet (May to November) seasons
Frequently asked questions about the climate in San Ramón
What is the best time to visit San Ramón?
January, February, March and April typically offer the most optimal weather in San Ramón. In contrast, May, June, July, August, September, October and November tend to have less optimal conditions. San Ramón has distinct dry (February to March) and wet (May to November) seasons.
What temperatures can I expect in San Ramón?
Daytime highs range from 27°C (81°F) in November to 29°C (84°F) in March. Nighttime lows range from 18°C (64°F) to 20°C (68°F). Temperatures stay relatively stable year-round.
How much rain does San Ramón get?
Annual rainfall is around 2857 mm (112 in). October is the wettest month with 441 mm (17 in), while February is the driest with 39 mm (1.5 in).
How sunny is San Ramón?
San Ramón receives around 2,440 hours of sunshine per year. January is the sunniest month with 285 hours, while June is the cloudiest with just 144 hours. Overall, San Ramón enjoys abundant sunshine.
San Ramón 3-Day Forecast
San Ramón on the map
San Ramón is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Tamarindo
30°C (86°F) Santa Teresa28°C (82°F) Cahuita29°C (84°F) Fortuna28°C (82°F) Puerto Viejo de Talamanca29°C (84°F) Herradura28°C (82°F) Jacó28°C (82°F) San José24°C (75°F) Bucket list
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