Sunshine Map

San José (Alajuela) weather by month & the best time to visit

🇨🇷 Costa Rica · city break · tropical — wet & dry seasons climate

The best time to visit San José (Alajuela) is February — its sunniest month (Sunshine Score 89/100), with March and January close behind. San José (Alajuela) averages about 2,387 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 22 mm of rain in February.

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Sun hours / year
2,387
Sunniest month
February
Peak score
89/100
Rain / year
1,792 mm
Midday UV at peak
13 (extreme)
Population
1.3M
Elevation
909 m
San José (Alajuela), Costa Rica
San José (Alajuela) — photo via Wikimedia Commons

When is the best time to visit San José (Alajuela)?

For sunshine, the best time to visit San José (Alajuela) is February, then March and January. The dullest month is May (65/100, 220 mm of rain). The full month-by-month picture is in the table below.

How sunny is San José (Alajuela)?

San José (Alajuela) gets a moderate 2,387 hours of sunshine a year. February (89/100) is noticeably better than May (65). It ranks #3 of 8 destinations in Costa Rica for annual sunshine, above the national median of 2,278 hours. Rain has a clear season: the wettest stretch, around September, carries about 42% of the annual 1,792 mm.

Sunshine Score by month

January: 86February: 8989March: 88April: 79May: 65June: 65July: 65August: 65September: 65October: 65November: 65December: 80JFMAMJJASOND
MonthScoreDay highNight lowRainUV
January86 25° / 77°F17° / 63°F 38 mm11
February89 27° / 81°F17° / 63°F 22 mm13
March88 29° / 84°F18° / 64°F 29 mm13
April79 29° / 84°F19° / 66°F 77 mm12
May65 26° / 79°F19° / 66°F 220 mm10
June65 25° / 77°F19° / 66°F 209 mm10
July65 25° / 77°F19° / 66°F 184 mm9
August65 25° / 77°F19° / 66°F 198 mm10
September65 24° / 75°F18° / 64°F 256 mm10
October65 24° / 75°F18° / 64°F 301 mm9
November65 24° / 75°F18° / 64°F 188 mm9
December80 25° / 77°F17° / 63°F 70 mm10

See San José (Alajuela) on the interactive sunshine globe →

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How San José (Alajuela) compares month by month: San José (Alajuela) vs Managua · San José (Alajuela) vs San Andrés · San José (Alajuela) vs Liberia · all comparisons

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