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 |
77° |
79° |
81° |
81° |
79° |
75° |
77° |
77° |
77° |
75° |
75° |
75° |
| Liberia (Guanacaste) |
90° |
91° |
95° |
95° |
91° |
86° |
88° |
88° |
86° |
84° |
86° |
88° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|
| Liberia (Guanacaste) |
83° |
83° |
84° |
84° |
87° |
86° |
85° |
86° |
85° |
84° |
82° |
82° |
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 May
8-year averages · when to visit
Best months: January–December · May: Good
|
April |
May |
June |
| Average temperature |
▼ 70°F |
68°F |
→ 68°F |
| Typical high |
▼ 81°F |
79°F |
▼ 75°F |
| Typical low |
→ 63°F |
63°F |
→ 63°F |
| Precipitation |
▲ 4.6 in |
13.1 in |
▲ 15.9 in |
| Wet days |
▲ 16 d |
26 d |
▲ 28 d |
| Humidity |
▲ 69% |
82% |
▲ 88% |
| Sunshine per day |
▼ 10.3 h |
8.7 h |
▼ 8.1 h |
| Cloud cover |
▲ 16% |
31% |
▲ 37% |
| Midday UV |
→ 12 |
12 |
▼ 11 |
| Daylight |
12:21 |
12:35 |
12:42 |
| Our take |
Good
|
Good
|
Good
|
May temperatures day by day daily mean + smoothed trend · °F
May precipitation day by day in
May 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