Fortaleza weather in September 2025

Expect 84°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Fortaleza in September. Check more long-term weather averages for Fortaleza in September before you book your next holiday to Brazil in 2025/2026.

  • 84°F maximum daytime temperature in September in Fortaleza84
    84°F max day temperature
  • 9 hours of sunshine per day
  • 14 days with some rainfall in September in Fortaleza14
    14 days with some rainfall
  • 73°F minimum night-time temperature in September in Fortaleza73
    73°F min night temperature
  • 12 hours of daylight per day in September in Fortaleza12
    12 hours of daylight per day
  • High heat & humidity in September in FortalezaH
    High heat & humidity
  • 0.7 inches monthly rainfall in September in Fortaleza0.7
    0.7 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Fortaleza11
    11+ (Extreme) UV index
  • 79°F sea temperature in September in Fortaleza79
    79°F sea temperature

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The September weather guide for Brazil (Fortaleza) 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)  |  Imperial (°F)

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How hot is it in Fortaleza in September?

Daytime temperatures usually reach 84°F in Fortaleza in September with high heat and humidity, falling to 73°F at night.

How sunny is it in Fortaleza in September?

There are normally 9 hours of bright sunshine each day in Fortaleza in September - that's 77% of daylight hours.

How warm is the sea around Fortaleza in September?

The average sea temperature around Fortaleza in September is 79°F.

Does it rain in Fortaleza in September?

There are usually 14 days with some rain in Fortaleza in September and the average monthly rainfall is 0.7 inches.

Fortaleza September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:33 17:35
Monday, 15th September 2025 05:27 17:32
Tuesday, 30th September 2025 05:20 17:28

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