Climate normals · 1970–2000
San José Climate
San José is a city in Costa Rica (08) with a population of about 335,007. Its average annual temperature is 21.2°C (70°F), with roughly 2963 mm of rain per year.
21.2°C
Avg Temp
2963
Precip (mm/yr)
Apr
Hottest Month
Dec
Coldest Month
San José Climate
San José has an average annual temperature of 21.2°C (70°F) and receives about 2963 mm of precipitation per year. The warmest month is April and the coldest is December. Figures are 1970–2000 climate normals.
21.2°C
Avg Temp
2963
Precip (mm/yr)
Apr
Hottest Month
Dec
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 21° / 69° | 51 mm |
| February | 21° / 70° | 56 mm |
| March | 22° / 71° | 54 mm |
| April | 22° / 72° | 121 mm |
| May | 22° / 71° | 311 mm |
| June | 21° / 70° | 367 mm |
| July | 21° / 71° | 348 mm |
| August | 21° / 70° | 411 mm |
| September | 21° / 70° | 432 mm |
| October | 21° / 69° | 439 mm |
| November | 21° / 69° | 264 mm |
| December | 21° / 69° | 109 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit San José
The most comfortable months to visit San José are typically February, January and March, when temperatures are mildest and rainfall is relatively low. The hottest month is April (around 28°C high). The coldest is December (near 16°C low). October is usually the wettest month.
Where to stay near San José
Planning a trip to San José? Compare hotels and short-term rentals — live availability and prices.
Top-rated places to stay near San José
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to San José?
Get climate tips and the best lodging deals for San José by email. No spam, unsubscribe anytime.
Frequently Asked Questions
The most comfortable months to visit San José are typically February, January and March, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
San José, Costa Rica has an average annual temperature of 21.2°C and about 2963 mm of precipitation per year. The warmest month is April and the coldest is December.
In April, the hottest month, daily highs in San José average about 28°C (83°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.