San Jose weather in September 2019

  • 24°C maximum daytime temperature in September in San Jose24
    24°C max day temperature
  • 6 hours of sunshine per day
  • 24 days with some rainfall in September in San Jose24
    24 days with some rainfall
  • 17°C minimum night-time temperature in September in San Jose17
    17°C min night temperature
  • 12 hours of daylight per day in September in San Jose12
    12 hours of daylight per day
  • Low heat & humidity in September in San JoseL
    Low heat & humidity
  • 372 mm monthly rainfall in September in San Jose372
    372 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in San Jose11
    11+ (Extreme) UV index
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The September weather guide for San Jose, Costa Rica shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to San Jose weather in September

The average maximum daytime temperature in San Jose in September is a warm 24°C (75°F) with low heat & humidity. The average night-time temperature is usually a comfortable 17°C (63°F). There are usually 6 hours of bright sunshine each day, which represents 49% of the 12 hours of daylight.

Expect 372mm (14.6 inches) of rainfall across the whole of September with 24 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

San Jose sunrise & sunset times for September 2019

Browse the sunrise & sunset times for San Jose in September 2019. Select a month to view San Jose sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 05:27 17:45
Sunday, 15th September 2019 05:26 17:37
Monday, 30th September 2019 05:25 17:28
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