San Juan del Sur weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in San Juan del Sur in September. Check more long-term weather averages for San Juan del Sur in September before you book your next holiday to Nicaragua in 2025/2026.

  • 30°C maximum daytime temperature in September in San Juan del Sur30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 24 days with some rainfall in September in San Juan del Sur24
    24 days with some rainfall
  • 22°C minimum night-time temperature in September in San Juan del Sur22
    22°C min night temperature
  • 12 hours of daylight per day in September in San Juan del Sur12
    12 hours of daylight per day
  • High heat & humidity in September in San Juan del SurH
    High heat & humidity
  • 300 mm monthly rainfall in September in San Juan del Sur300
    300 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in San Juan del Sur11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in San Juan del Sur28
    28°C sea temperature

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The September weather guide for Nicaragua (San Juan del Sur) 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)

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How hot is it in San Juan del Sur in September?

Daytime temperatures usually reach 30°C in San Juan del Sur in September with high heat and humidity, falling to 22°C at night.

How sunny is it in San Juan del Sur in September?

There are normally 6 hours of bright sunshine each day in San Juan del Sur in September - that's 45% of daylight hours.

How warm is the sea around San Juan del Sur in September?

The average sea temperature around San Juan del Sur in September is 28°C.

Does it rain in San Juan del Sur in September?

There are usually 24 days with some rain in San Juan del Sur in September and the average monthly rainfall is 300mm.

San Juan del Sur September sunrise & sunset times

Browse the sunrise and sunset times for San Juan del Sur in September 2025. Select a month to view San Juan del Sur sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:34 17:53
Monday, 15th September 2025 05:33 17:44
Tuesday, 30th September 2025 05:32 17:34

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