Alajuela vs San Isidro, Costa Rica Climate
93%matchAlajuela and San Isidro are a 93% climate match. Compared with Alajuela, San Isidro has the same nighttime lows, twice the the dry season rain and 4°F (2°C) hotter days.
Alajuela gets 105 in (2677 mm) of rain a year and San Isidro 114 in (2894 mm). Alajuela's warmest month is April, at 83°F (29°C); San Isidro's is March, at 87°F (31°C).
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
AlajuelaSan Isidrosolid = high, dashed = low
Rain (in per month)
AlajuelaSan Isidro
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Alajuela | San Isidro | Alajuela | San Isidro | Alajuela | San Isidro | |
| Jan | 80°F(27°C) | 84°F(29°C) | 62°F(17°C) | 61°F(16°C) | 0.8 in(20 mm) | 2.7 in(69 mm) |
| Feb | 81°F(27°C) | 86°F(30°C) | 62°F(17°C) | 61°F(16°C) | 1.0 in(26 mm) | 1.6 in(40 mm) |
| Mar | 83°F(28°C) | 87°F(31°C) | 63°F(17°C) | 62°F(17°C) | 1.1 in(28 mm) | 2.8 in(72 mm) |
| Apr | 83°F(29°C) | 87°F(31°C) | 64°F(18°C) | 64°F(18°C) | 4.3 in(109 mm) | 6.2 in(157 mm) |
| May | 82°F(28°C) | 86°F(30°C) | 64°F(18°C) | 64°F(18°C) | 14 in(358 mm) | 14 in(354 mm) |
| Jun | 81°F(27°C) | 85°F(30°C) | 64°F(18°C) | 64°F(18°C) | 14 in(362 mm) | 12 in(302 mm) |
| Jul | 81°F(27°C) | 85°F(29°C) | 64°F(18°C) | 64°F(18°C) | 11 in(273 mm) | 11 in(270 mm) |
| Aug | 81°F(27°C) | 85°F(29°C) | 63°F(17°C) | 64°F(18°C) | 15 in(376 mm) | 14 in(358 mm) |
| Sep | 81°F(27°C) | 84°F(29°C) | 63°F(17°C) | 63°F(17°C) | 16 in(396 mm) | 15 in(376 mm) |
| Oct | 80°F(27°C) | 83°F(28°C) | 62°F(17°C) | 64°F(18°C) | 17 in(422 mm) | 19 in(477 mm) |
| Nov | 79°F(26°C) | 82°F(28°C) | 63°F(17°C) | 63°F(17°C) | 8.8 in(224 mm) | 13 in(324 mm) |
| Dec | 80°F(27°C) | 83°F(29°C) | 63°F(17°C) | 62°F(17°C) | 3.3 in(83 mm) | 3.7 in(95 mm) |
1991–2020 averages, by calendar month.