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Costa Rica weather in September 2023
- 2424°C max day temperature
- 2424 days with some rainfall
- 1717°C min night temperature
- 1212 hours of daylight per day
- LLow heat & humidity
- 372372 mm of monthly rainfall
- 1111+ (Extreme) UV index
Below are average maximum temperatures at popular destinations in Costa Rica in September. Select a destination to see more weather parameters.
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The September weather guide for Costa Rica (San Jose) 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.
Metric (°C / mm) | Imperial (°F / inches)
More about Costa Rica
How hot is it in Costa Rica in September?
Daytime temperatures usually reach 24°C in San Jose, Costa Rica in September, falling to 17°C at night.
How sunny is it in Costa Rica in September?
There are normally 6 hours of bright sunshine each day in San Jose, Costa Rica in September - that's 49% of daylight hours.
Does it rain in Costa Rica in September?
There are usually 24 days with some rain in San Jose, Costa Rica in September and the average monthly rainfall is 372mm.
Costa Rica September sunrise & sunset times
Browse the sunrise and sunset times for Costa Rica in September 2023. Select a month to view Costa Rica sunrise and sunset times for the next 12 months. The Costa Rica sunrise and sunset times shown below are for San Jose.
|Date||Sunrise times||Sunset times|
|Friday, 1st September 2023||05:27||17:45|
|Friday, 15th September 2023||05:26||17:37|
|Saturday, 30th September 2023||05:25||17:27|
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