Alajuela Climate by Month
Alajuela, Alajuela Province, Costa Rica
Warm all year, with rain spread through the year.
Warm all year, with rain spread through the year: that's Alajuela's climate in short. Expect highs of 83°F (29°C) in April and 79°F (26°C) in November, with the coldest nights (February) near 62°F (17°C). It gets 105 in (2677 mm) of rain a year, spread across the months. The air is humid, averaging 83% relative humidity.
- Warmest month
- 83°F(29°C)
- Average high, April
- Coldest nights
- 62°F(17°C)
- Average low, February
- Rain per year
- 105 in(2677 mm)
- No clear rainy season
- Humidity
- 83%
- Sunniest: March
Best and worst months in Alajuela
Best for weatherJanuary and February are the best time for weather in Alajuela: highs near 81°F (27°C) and about 0.9 in (23 mm) of rain a month.
Least pleasantSeptember and October are the least pleasant; October is the wettest, with 17 in (422 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in January.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Alajuela weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 80°F(27°C) | 62°F(17°C) | 0.8 in(20 mm) | 77% | 5.4 |
| FebFebruaryBest | 81°F(27°C) | 62°F(17°C) | 1.0 in(26 mm) | 76% | 6.1 |
| MarMarch | 83°F(28°C) | 63°F(17°C) | 1.1 in(28 mm) | 80% | 6.4 |
| AprApril | 83°F(29°C) | 64°F(18°C) | 4.3 in(109 mm) | 81% | 6.2 |
| MayMay | 82°F(28°C) | 64°F(18°C) | 14 in(358 mm) | 86% | 5.6 |
| JunJune | 81°F(27°C) | 64°F(18°C) | 14 in(362 mm) | 85% | 5.5 |
| JulJuly | 81°F(27°C) | 64°F(18°C) | 11 in(273 mm) | 84% | 5.6 |
| AugAugust | 81°F(27°C) | 63°F(17°C) | 15 in(376 mm) | 85% | 5.6 |
| SepSeptember | 81°F(27°C) | 63°F(17°C) | 16 in(396 mm) | 87% | 5.5 |
| OctOctober | 80°F(27°C) | 62°F(17°C) | 17 in(422 mm) | 88% | 5.2 |
| NovNovember | 79°F(26°C) | 63°F(17°C) | 8.8 in(224 mm) | 85% | 4.8 |
| DecDecember | 80°F(27°C) | 63°F(17°C) | 3.3 in(83 mm) | 80% | 5.0 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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