Costa Rica climate by month
8-year averages · when to visit
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|
| San José |
25° |
26° |
27° |
27° |
26° |
24° |
25° |
25° |
25° |
24° |
24° |
24° |
| Liberia (Guanacaste) |
32° |
33° |
35° |
35° |
33° |
30° |
31° |
31° |
30° |
29° |
30° |
31° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|
| Liberia (Guanacaste) |
28° |
28° |
29° |
29° |
31° |
30° |
29° |
30° |
30° |
29° |
28° |
28° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
San José climate in April
8-year averages · when to visit
Best months: January–December · April: Good
|
March |
April |
May |
| Average temperature |
→ 21°C |
21°C |
▼ 20°C |
| Typical high |
→ 27°C |
27°C |
▼ 26°C |
| Typical low |
▲ 16°C |
17°C |
→ 17°C |
| Precipitation |
▲ 36 mm |
117 mm |
▲ 333 mm |
| Wet days |
▲ 8 d |
16 d |
▲ 26 d |
| Humidity |
▲ 65% |
69% |
▲ 82% |
| Sunshine per day |
▼ 11.3 h |
10.3 h |
▼ 8.7 h |
| Cloud cover |
▲ 7% |
16% |
▲ 31% |
| Midday UV |
▲ 11 |
12 |
→ 12 |
| Daylight |
12:05 |
12:21 |
12:35 |
| Our take |
Perfect
|
Good
|
Good
|
April temperatures day by day daily mean + smoothed trend · °C
April precipitation day by day mm
April UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
More destinations in North America & Caribbean
Costa Rica · 13 weather points · Climate reference: San José (9.93°N, 84.08°W) · America/Costa_Rica