Climate · Costa Rica

San José

Warm all year, wet from May to November and drier from January to March.

Typical weather, averaged over 30 years9.9°N1,160 m above the sea
  1. Jan79°26°61°16°Rain on about two days a week.
  2. Feb81°27°61°16°Rain on about two days a week.
  3. Mar82°28°62°17°Rain on about two days a week.
  4. Apr83°28°64°18°Rain on about four days a week.
  5. May80°27°65°18°Rain on about six days a week.
  6. Jun79°26°64°18°Rain on almost every day.
  7. Jul78°26°64°18°Rain on almost every day.
  8. Aug79°26°64°18°Rain on almost every day.
  9. Sep79°26°64°18°Rain on almost every day.
  10. Oct78°26°64°18°Rain on almost every day.
  11. Nov77°25°64°18°Rain on about six days a week.
  12. Dec78°26°62°17°Rain on about four days a week.
Each month: its typical high and low, and dots for wet days a week. Tap a month to open it.The best months

Highs hardly move, between 77°F and 83°F all year, with nights near 63°F. The rain comes from May to November, on almost every day. January to March is the driest stretch, with rain on about two days a week. Daylight stays near 12 hours all year.Highs hardly move, between 25°C and 28°C all year, with nights near 17°C. The rain comes from May to November, on almost every day. January to March is the driest stretch, with rain on about two days a week. Daylight stays near 12 hours all year.

Where San José sits

America/Costa Rica

this place
typical high in Januarytypical high in Februarytypical high in Marchtypical high in Apriltypical high in Maytypical high in Junetypical high in Julytypical high in Augusttypical high in Septembertypical high in Octobertypical high in Novembertypical high in December 40°F4°C95°F35°C
Latitude
9.9°Nnorthern hemisphere
Above the sea
1,160 mupland
Sunrise, mid-JanuarySunrise, mid-FebruarySunrise, mid-MarchSunrise, mid-AprilSunrise, mid-MaySunrise, mid-JuneSunrise, mid-JulySunrise, mid-AugustSunrise, mid-SeptemberSunrise, mid-OctoberSunrise, mid-NovemberSunrise, mid-December
5:57 AM5:56 AM5:44 AM5:26 AM5:15 AM5:15 AM5:22 AM5:27 AM5:26 AM5:24 AM5:31 AM5:45 AMsets 5:33 PMsets 5:45 PMsets 5:48 PMsets 5:47 PMsets 5:50 PMsets 5:57 PMsets 6:02 PMsets 5:55 PMsets 5:37 PMsets 5:20 PMsets 5:11 PMsets 5:18 PM
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.The land around San José, shaded by its typical high in February, the planning map's own layer.The land around San José, shaded by its typical high in March, the planning map's own layer.The land around San José, shaded by its typical high in April, the planning map's own layer.The land around San José, shaded by its typical high in May, the planning map's own layer.The land around San José, shaded by its typical high in June, the planning map's own layer.The land around San José, shaded by its typical high in July, the planning map's own layer.The land around San José, shaded by its typical high in August, the planning map's own layer.The land around San José, shaded by its typical high in September, the planning map's own layer.The land around San José, shaded by its typical high in October, the planning map's own layer.The land around San José, shaded by its typical high in November, the planning map's own layer.The land around San José, shaded by its typical high in December, 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.

Through the year

week by week

Temperature

Highs from 77°F in November to 83°F in April.Highs from 25°C in November to 28°C in April.

Chance of a wet day

Wettest in September and October (99% of days), driest in February (23%).

Cloud cover

Clearest in January (57% cover), cloudiest in May and June (84%).

Daylight

About 12 hours all year, as near the equator.

Week by week, lightly smoothed. Shading marks the seasons; the olive line, the best months. Hover or tap a week for its figures.

Month by month

°F°C

San José, month by month: the typical high and low, wet days a week, cloud cover and daylight.
MonthTypical low to highWet days a weekCloudDaylight
JanuaryDry seasonAt its best
61°16°79°26°
2 days57%11h 37m
FebruaryDry seasonAt its best
61°16°81°27°
2 days61%11h 48m
MarchDry season
62°17°82°28°
2 days63%12h 03m
April
64°18°83°28°
4 days74%12h 20m
MayRainy season
65°18°80°27°
6 days84%12h 35m
JuneRainy season
64°18°79°26°
7 days84%12h 42m
JulyRainy season
64°18°78°26°
7 days81%12h 38m
AugustRainy season
64°18°79°26°
7 days80%12h 26m
SeptemberRainy season
64°18°79°26°
7 days82%12h 10m
OctoberRainy season
64°18°78°26°
7 days84%11h 53m
NovemberRainy season
64°18°77°25°
6 days78%11h 39m
December
62°17°78°26°
4 days61%11h 33m

When is the best time to visit San José?


The best months are January to February: highs near 80°F, nights near 61°F, and rain on about two days a week.The best months are January to February: highs near 27°C, nights near 16°C, and rain on about two days a week.

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.

Questions


What is the warmest month in San José?

April, with highs near 83°F and lows near 64°F. The coolest is November, with highs near 77°F.April, with highs near 28°C and lows near 18°C. The coolest is November, with highs near 25°C.

When does it rain most in San José?

September and October, with rain on almost every day. February is the driest, with rain on about two days a week.

How long are the days in San José?

About 12 hours all year, as near the equator.

When are the skies clearest in San José?

January, when cloud covers about 57% of the sky on average. May and June are the cloudiest, at about 84%.

Places with a year like San José's

by their highs, lows and wet days

Their highs, lows, wet days and cloud run closest to San José's through the year, one place a country. “Six months apart”: their winter is San José's summer.

Elsewhere in Costa Rica

All of Costa Rica

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.