San José weather
Loading live data…Latest for San José: European (ECMWF): 19° Overcast · American (NOAA GFS): 18° Overcast · German (DWD ICON): 20° Overcast.
The weather map: all three models at once
European, American, German side by side around San José and nearby towns.Live rain radar →Hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
10-day forecast, out to 14 days
where the models agree, and where they splitHeading to San José? San José, Costa Rica, sits at 9.9°N in a tropical climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast San José right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.
Best time to visit San José
The most comfortable time to visit San José is usually January, February, June and July, when daytime highs sit in the pleasant 16-26°C range and the heaviest October rain is behind you.
San José weather by month
what to expect in San José through the year, 1991-2020 averagesHere is San José's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to San José by season.
San José compared with Toronto
30-year averages: daytime highs month by month, rain and sunlightWarmer through the year
average daytime high: San José 26°C, Toronto 14°C
Rain over a year
San José 2,728 mm, Toronto 924 mm
Sunlight vs a clear sky
solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)
On 30-year averages San José runs 12°C warmer than Toronto, with every month between −2°C and +26°C. Over a year it gets 195% more rain than Toronto.
Month by month in numbers
| Month | San José | Toronto | Difference | Sunlight, San José | Sunlight, Toronto |
|---|---|---|---|---|---|
| January | 26°C | 0°C | +26°C | 88% | 56% |
| February | 26°C | 1°C | +25°C | 92% | 57% |
| March | 27°C | 5°C | +22°C | 91% | 64% |
| April | 28°C | 12°C | +16°C | 80% | 67% |
| May | 27°C | 19°C | +8°C | 69% | 72% |
| June | 25°C | 24°C | +1°C | 68% | 76% |
| July | 25°C | 27°C | −2°C | 66% | 79% |
| August | 25°C | 26°C | −1°C | 67% | 79% |
| September | 25°C | 22°C | +3°C | 69% | 76% |
| October | 24°C | 15°C | +9°C | 65% | 63% |
| November | 24°C | 8°C | +16°C | 70% | 60% |
| December | 25°C | 3°C | +22°C | 81% | 54% |
Daytime highs and lows on this page are 1991-2020 averages. San José: no weather station within 30 km at a similar height, so lows are ERA5 point values for 2023-2024, corrected month by month by NASA POWER's difference between those two years and 1991-2020, and highs are the uncorrected ERA5 values, which tested closer to station normals; rain is the CHELSA 1981-2010 climatology on a 1 km grid. Toronto: station normals from Toronto City (WMO); rain is the CHELSA 1981-2010 climatology on a 1 km grid. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Toronto stands in for Canada here; other cities have their own climate tables.