Yap weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Yap in September. Check more long-term weather averages for Yap in September before you book your next holiday to Federated States of Micronesia in 2025/2026.

  • 31°C maximum daytime temperature in September in Yap31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 19 days with some rainfall in September in Yap19
    19 days with some rainfall
  • 24°C minimum night-time temperature in September in Yap24
    24°C min night temperature
  • 12 hours of daylight per day in September in Yap12
    12 hours of daylight per day
  • Very high heat & humidity in September in YapVH
    Very High heat & humidity
  • 366 mm monthly rainfall in September in Yap366
    366 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Yap11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Yap29
    29°C sea temperature

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The September weather guide for Federated States of Micronesia (Yap) 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 Yap in September?

Daytime temperatures usually reach 31°C in Yap in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Yap in September?

There are normally 6 hours of bright sunshine each day in Yap in September - that's 49% of daylight hours.

How warm is the sea around Yap in September?

The average sea temperature around Yap in September is 29°C.

Does it rain in Yap in September?

There are usually 19 days with some rain in Yap in September and the average monthly rainfall is 366mm.

What is the chance of a typhoon in Yap in September?

On average 1 day in September in Yap is likely to be affected by the passage of one or more tropical storms.

Yap September sunrise & sunset times

Browse the sunrise and sunset times for Yap in September 2025. Select a month to view Yap sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:39 18:57
Monday, 15th September 2025 06:38 18:48
Tuesday, 30th September 2025 06:36 18:39

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