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Climate · San José

San José in January

Warm and mostly dry, as the days hold steady.

Typical weather, averaged over 30 years

January in San José is warm: highs near 79°F, lows near 61°F. Rain falls on about two days a week, and daylight holds at about 11 hours 37 minutes.January in San José is warm: highs near 26°C, lows near 16°C. Rain falls on about two days a week, and daylight holds at about 11 hours 37 minutes.

High
79°F26°Caverage
Low
61°F16°Caverage
Wet days
2a week · 30% of days
Daylight
11h 37mon average

Is January a good time to visit San José?

Yes. January is one of San José's best months (January to February).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How January sits in the year

week by week

Temperature

Highs near 79°F in January, against 77°F to 83°F through the year.Highs near 26°C in January, against 25°C to 28°C through the year.

Chance of a wet day

30% of days in January, against 23% to 99% through the year.

Cloud cover

57% cover in January, against 57% to 84% through the year.

Daylight

11h 37m in January, against 11h 33m to 12h 42m through the year.

Week by week, lightly smoothed, with January shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. December78°26°low 62°low 17°4 wet days a weekRain on about four days a week.
  2. January79°26°low 61°low 16°2 wet days a weekRain on about two days a week.
  3. February81°27°low 61°low 16°2 wet days a weekRain on about two days a week.

Where San José sits, in January

America/Costa Rica
this place
typical high in January 40°F4°C95°F35°C
Sunrise, mid-January
5:57 AMsets 5:33 PM
Above the sea
1,160 mupland
Latitude
9.9°Nnorthern hemisphere
Nearest of ours
Pérez Zeledón75 km south-east

The land around San José, shaded by its typical high in January, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Costa Rica in January

high · low · wet days
See January on the planning mapThe whole year in San José

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest San José. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,160 m) against the climate model's (1,273 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,160 m) against the climate model's (1,273 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.