Merida weather in September 2025

Expect 33°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Merida in September. Check more long-term weather averages for Merida in September before you book your next holiday to Mexico in 2025/2026.

  • 33°C maximum daytime temperature in September in Merida33
    33°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in September in Merida15
    15 days with some rainfall
  • 23°C minimum night-time temperature in September in Merida23
    23°C min night temperature
  • 12 hours of daylight per day in September in Merida12
    12 hours of daylight per day
  • Very high heat & humidity in September in MeridaVH
    Very High heat & humidity
  • 186 mm monthly rainfall in September in Merida186
    186 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Merida11
    11 (Extreme) UV index

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The September weather guide for Mexico (Merida) 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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More about Mexico

How hot is it in Merida in September?

Daytime temperatures usually reach 33°C in Merida in September with very high heat and humidity, falling to 23°C at night.

How sunny is it in Merida in September?

There are normally 7 hours of bright sunshine each day in Merida in September - that's 56% of daylight hours.

Does it rain in Merida in September?

There are usually 15 days with some rain in Merida in September and the average monthly rainfall is 186mm.

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

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

Merida September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:42 18:14
Monday, 15th September 2025 05:46 18:01
Tuesday, 30th September 2025 05:49 17:47

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