San José (Alajuela) weather by month & the best time to visit
Costa Rica · city break · tropical — wet & dry seasons climate
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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.
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
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 86 | 25° / 77°F | 17° / 63°F | 38 mm | 11 |
| February | 89 | 27° / 81°F | 17° / 63°F | 22 mm | 13 |
| March | 88 | 29° / 84°F | 18° / 64°F | 29 mm | 13 |
| April | 79 | 29° / 84°F | 19° / 66°F | 77 mm | 12 |
| May | 65 | 26° / 79°F | 19° / 66°F | 220 mm | 10 |
| June | 65 | 25° / 77°F | 19° / 66°F | 209 mm | 10 |
| July | 65 | 25° / 77°F | 19° / 66°F | 184 mm | 9 |
| August | 65 | 25° / 77°F | 19° / 66°F | 198 mm | 10 |
| September | 65 | 24° / 75°F | 18° / 64°F | 256 mm | 10 |
| October | 65 | 24° / 75°F | 18° / 64°F | 301 mm | 9 |
| November | 65 | 24° / 75°F | 18° / 64°F | 188 mm | 9 |
| December | 80 | 25° / 77°F | 17° / 63°F | 70 mm | 10 |
Nearest destinations
Head-to-head
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San José (Alajuela): questions and answers
What kind of destination is San José (Alajuela)?
San José (Alajuela) is a city break in Costa Rica at 909 m elevation with a tropical — wet & dry seasons climate.
How many hours of sunshine does San José (Alajuela) get a year?
San José (Alajuela) gets about 2,387 hours of sunshine a year, at its best around February.
When is the best time to visit San José (Alajuela)?
The sunniest time to visit San José (Alajuela) is February, when the Sunshine Score peaks at 89/100 (with March and January close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in San José (Alajuela)?
May is the least sunny month in San José (Alajuela), scoring 65/100 with about 220 mm of rain.
How strong is the sun in San José (Alajuela)?
The typical midday UV index in San José (Alajuela) peaks around 13 (extreme) in February, easing to about 9 (very high) in July. Month-by-month midday UV values are in the UV column of the table on this page.
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