Montserrat weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Montserrat in September. Check more long-term weather averages for Montserrat in September before you book your next holiday to Montserrat in 2025/2026.

  • 30°C maximum daytime temperature in September in Montserrat (Plymouth)30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 18 days with some rainfall in September in Montserrat (Plymouth)18
    18 days with some rainfall
  • 23°C minimum night-time temperature in September in Montserrat (Plymouth)23
    23°C min night temperature
  • 12 hours of daylight per day in September in Montserrat (Plymouth)12
    12 hours of daylight per day
  • High heat & humidity in September in Montserrat (Plymouth)H
    High heat & humidity
  • 203 mm monthly rainfall in September in Montserrat (Plymouth)203
    203 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Montserrat (Plymouth)11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Montserrat (Plymouth)29
    29°C sea temperature

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The September weather guide for Montserrat, represented by Plymouth, (Plymouth) 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 Montserrat in September?

Daytime temperatures usually reach 30°C in Plymouth, Montserrat in September with high heat and humidity, falling to 23°C at night.

How sunny is it in Montserrat in September?

There are normally 7 hours of bright sunshine each day in Plymouth, Montserrat in September - that's 61% of daylight hours.

How warm is the sea around Montserrat in September?

The average sea temperature around Plymouth, Montserrat in September is 29°C.

Does it rain in Montserrat in September?

There are usually 18 days with some rain in Plymouth, Montserrat in September and the average monthly rainfall is 203mm.

What is the chance of a hurricane in Montserrat in September?

On average 1.2 days in September in Plymouth, Montserrat are likely to be affected by the passage of one or more tropical storms.

Montserrat September sunrise & sunset times

Browse the sunrise and sunset times for Montserrat in September 2025. Select a month to view Montserrat sunrise and sunset times for the next 12 months. The Montserrat sunrise and sunset times shown below are for Plymouth.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:56 18:22
Monday, 15th September 2025 05:57 18:10
Tuesday, 30th September 2025 05:59 17:58

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