Tilarán Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Tilarán.
Climate overview of Tilarán
Tilarán, Guanacaste, Costa Rica, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 29°C (84°F), peaking in April at 32°C (90°F) and dipping in January to 28°C (82°F).
Rainfall is high, totalling around 1958 mm (77 in) per year. October is the wettest month and March the driest. The city also experiences distinct dry (January to March) and wet (May to October) seasons. March is the sunniest month, averaging 10.2 hours of sunshine per day.
Tilarán Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tilarán - and find the best time to visit.
Monthly Temperature in Tilarán
With minimal seasonal shifts, Tilarán experiences a constant climate year-round. Average maximum daytime temperatures range from a very warm 32°C (90°F) in April, the warmest time of the year, to a comfortable 28°C (82°F) during cooler months like January.
At night, you can expect temperatures ranging from 22°C (72°F) in April to around 20°C (68°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Tilarán
Tilarán has a notably wet climate with abundant precipitation, recording 1958 mm (77 in) of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 330 mm (13 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month March brings less rainfall, with 14 mm (0.6 in) over 7 rainy days. For more details, please visit our Tilarán 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 Tilarán
Seasonal changes in sunshine hours are quite dramatic in Tilarán. While March receives considerable daily sunshine with up to 10.2 hours, September marks the darkest time of the year, where sunshine is scarce with only 5.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Tilarán by Month
The relative humidity is high throughout the year in Tilarán.
The city experiences its highest humidity in September, reaching 86%. In March, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Tilarán
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February and December
- Warmest weather: March, April and May
- Most sunshine: January and March
- Fewest rainy days: February, March and April
- Wettest months: May, June, July, August, September and October, when rainfall is highest.
- Seasonal pattern: Distinct dry (January to March) and wet (May to October) seasons
Frequently asked questions about the climate in Tilarán
What is the best time to visit Tilarán?
January, February and December typically offer the most optimal weather in Tilarán. In contrast, May, June, September and October tend to have less optimal conditions. Tilarán has distinct dry (January to March) and wet (May to October) seasons.
What temperatures can I expect in Tilarán?
Daytime highs range from 28°C (82°F) in January to 32°C (90°F) in April. Nighttime lows range from 20°C (68°F) to 22°C (72°F). Temperatures stay relatively stable year-round.
How much rain does Tilarán get?
Annual rainfall is around 1958 mm (77 in). October is the wettest month with 330 mm (13 in), while March is the driest with 14 mm (0.6 in).
How sunny is Tilarán?
Tilarán receives around 2,675 hours of sunshine per year. March is the sunniest month with 305 hours, while September is the cloudiest with just 158 hours. Overall, Tilarán enjoys abundant sunshine.
Tilarán 3-Day Forecast
Tilarán on the map
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