Weather radar San José
Real-time precipitation radar · San José · Costa Rica
San José climate table – average temperature, precipitation & sunshine hours
The climate table for San José shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 23.5° | 23.7° | 24.8° | 25.1° | 25.6° | 25° | 25° | 25.2° | 25.3° | 24.9° | 24° | 23.8° |
| Avg low (°C) | 16.4° | 16.3° | 16.6° | 17.7° | 18.7° | 18.6° | 18.7° | 18.4° | 18.4° | 18.3° | 18.1° | 17.2° |
| Precipitation (mm) | 51 | 60 | 59 | 111 | 256 | 409 | 312 | 339 | 346 | 481 | 472 | 130 |
| Rainy days | 11 | 11 | 14 | 21 | 26 | 28 | 27 | 27 | 29 | 30 | 27 | 16 |
| Sunshine hours | 323 | 293 | 330 | 296 | 273 | 218 | 238 | 251 | 241 | 225 | 214 | 297 |
| Humidity | 81% | 80% | 79% | 82% | 86% | 90% | 87% | 88% | 89% | 91% | 89% | 84% |
Best time to visit San José
The best time to visit San José is typically January. In this month the average high is 23.5°C, precipitation is 51 mm and sunshine duration is 323 hours. The annual average high is 24.7°C, total annual precipitation is 3026 mm (267 rainy days/year) and annual sunshine is 3199 hours.
Frequently asked questions about the weather in San José
How up to date is the weather radar for San José?
The weather radar for San José is updated every 5 minutes with new radar data from the OPERA composite radar. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for San José?
Besides the rain radar, RadarWeather provides for San José: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in San José?
The thunderstorm potential for San José is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near San José.
What is the climate like in San José?
San José has an annual average high of 24.7°C. The warmest month is May (avg high 25.6°C), the coldest February (avg low 16.3°C). The wettest month is October with 481 mm, the driest January with 51 mm. Total annual precipitation is 3026 mm (267 rainy days). Annual sunshine is 3199 hours.
Weather radar near San José
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