Temperature
Warm by day, mild at night.
Warm days and plenty of sun.

Warm by day, mild at night.
Several rainy days, mostly brief and on-and-off. About 7 wet days, the lowest monthly average.
Plenty of sun this month.
Warm days, with humid periods.
In March, afternoons feel about 83° and nights feel near 74°.
Partly cloudy skies this month.
Calm winds are typical in March.
March late afternoons are around 80°F, easing to about 75°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 80 | 69 | 4.5 | 16 | 10.5 | 87 |
| Feb | 81 | 69 | 2.1 | 9 | 11.1 | 84 |
| Mar | 83 | 69 | 1.2 | 7 | 11.4 | 81 |
| Apr | 86 | 71 | 2.1 | 10 | 10.9 | 80 |
| May | 85 | 73 | 9.9 | 24 | 9.0 | 86 |
| Jun | 84 | 73 | 12.6 | 29 | 8.0 | 90 |
| Jul | 83 | 72 | 10.4 | 28 | 8.0 | 90 |
| Aug | 84 | 72 | 9.9 | 28 | 8.3 | 90 |
| Sep | 84 | 72 | 11.3 | 29 | 8.1 | 90 |
| Oct | 83 | 72 | 12.8 | 30 | 7.6 | 91 |
| Nov | 81 | 71 | 11.8 | 27 | 8.1 | 90 |
| Dec | 80 | 70 | 7.8 | 22 | 9.9 | 89 |
Similar climates
Want a side-by-side climate view? Compare La Fortuna with Perez Zeledon.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 22, 2026
Data & methodology