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Climate: San José

Picture-Copyright: Randall Madrigal

San José has a tropical climate. Rainfall is significant most months of the year, and the short dry season has little effect. According to Köppen and Geiger, this climate is classified as Am. The average temperature in San José is 20.9 °C. Precipitation here averages 2730 mm.

Climograph San José

Climograph, San José

The driest month is February, with 15 mm of rainfall. Most of the precipitation here falls in October, averaging 472 mm.

Temperature graph San José

Temperature graph, San José

The warmest month of the year is April, with an average temperature of 21.9 °C. December is the coldest month, with temperatures averaging 20.0 °C.

San José Climate table // historical Weather data

  Avg. Temperature (°C) Avg. Temperature (°F) Precipitation / Rainfall (mm)
January 20.2 68.4 18
February 20.6 69.1 15
March 21.3 70.3 23
April 21.9 71.4 78
May 21.6 70.9 343
June 21.2 70.2 382
July 21.1 70.0 282
August 21.1 70.0 383
September 20.8 69.4 464
October 20.5 68.9 472
November 20.3 68.5 214
December 20 68.0 56
  January February March April May June July August September October November December
Avg. Temperature (°C) 20.2 20.6 21.3 21.9 21.6 21.2 21.1 21.1 20.8 20.5 20.3 20
Min. Temperature (°C) 15.1 15.1 15.7 16.6 16.6 16.6 16.8 16.4 16 15.9 15.8 15.2
Max. Temperature (°C) 25.3 26.1 27 27.3 26.7 25.8 25.5 25.8 25.6 25.1 24.8 24.9
Avg. Temperature (°F) 68.4 69.1 70.3 71.4 70.9 70.2 70.0 70.0 69.4 68.9 68.5 68.0
Min. Temperature (°F) 59.2 59.2 60.3 61.9 61.9 61.9 62.2 61.5 60.8 60.6 60.4 59.4
Max. Temperature (°F) 77.5 79.0 80.6 81.1 80.1 78.4 77.9 78.4 78.1 77.2 76.6 76.8
Precipitation / Rainfall (mm) 18 15 23 78 343 382 282 383 464 472 214 56

The difference in precipitation between the driest month and the wettest month is 457 mm. Throughout the year, temperatures vary by 1.9 °C.

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