Climate averages 1991–2020
San José weather
in October.
A warm, very wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a warm month in San José: daytime highs average 23.7°C and nights cool to about 18.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 430 mm of rain on roughly 30 days, which makes October a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average October day.
The nearest other city in this atlas is David (247 km away). In October its highs average 27.4°C, 3.7°C warmer than San José, with 602 mm of rain.
From October to November, average highs fall by 0.3°C to 23.4°C, and monthly rainfall falls from 430 mm to 312 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San José climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.6°C16.8°C | 16.8°C | 104 | 13.3 | 11.612 h |
| February | 25.7°C16.9°C | 16.9°C | 69 | 11.9 | 11.812 h |
| March | 26.6°C17.4°C | 17.4°C | 65 | 13.9 | 12.112 h |
| April | 26.5°C18.1°C | 18.1°C | 102 | 18.0 | 12.312 h |
| May | 25.0°C18.6°C | 18.6°C | 357 | 27.8 | 12.613 h |
| June | 24.4°C18.6°C | 18.6°C | 385 | 28.8 | 12.713 h |
| July | 24.2°C18.3°C | 18.3°C | 293 | 28.2 | 12.613 h |
| August | 24.3°C18.2°C | 18.2°C | 345 | 28.5 | 12.412 h |
| September | 24.2°C18.1°C | 18.1°C | 391 | 29.1 | 12.212 h |
| October, selected | 23.7°C18.1°C | 18.1°C | 430 | 30.1 | 11.912 h |
| November | 23.4°C17.9°C | 17.9°C | 312 | 25.5 | 11.712 h |
| December | 23.8°C17.3°C | 17.3°C | 169 | 17.8 | 11.612 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- David in OctoberPanama · 247 kmHigh 27.4°C · Low 21.7°C · 602 mm rain
- Granada, Nicaragua in OctoberNicaragua · 302 kmHigh 28.9°C · Low 24.2°C · 221 mm rain
- Masaya in OctoberNicaragua · 316 kmHigh 28.3°C · Low 23.0°C · 221 mm rain
- Managua in OctoberNicaragua · 340 kmHigh 30.1°C · Low 23.9°C · 187 mm rain
- Matagalpa in OctoberNicaragua · 388 kmHigh 26.6°C · Low 20.2°C · 190 mm rain
- León, Nicaragua in OctoberNicaragua · 413 kmHigh 29.0°C · Low 23.8°C · 409 mm rain
- Estelí in OctoberNicaragua · 430 kmHigh 26.3°C · Low 19.7°C · 248 mm rain
- Chinandega in OctoberNicaragua · 447 kmHigh 29.3°C · Low 24.1°C · 373 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San José) is explained once on the San José year overview and on the Sources, method and limits page.