Cayenne weather in January 2026

Expect daytime maximum temperatures of 84°F in Cayenne, French Guiana in January and high heat and humidity based on long-term weather averages. There are 4 hours of sunshine per day on average with 20 days with some rainfall and typically 14.4 inches of rainfall in the month.

  • 84°F maximum daytime temperature in January in Cayenne84
    84°F max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in January in Cayenne20
    20 days with some rainfall
  • 73°F minimum night-time temperature in January in Cayenne73
    73°F min night temperature
  • 12 hours of daylight per day in January in Cayenne12
    12 hours of daylight per day
  • High heat & humidity in January in CayenneH
    High heat & humidity
  • 14.4 inches monthly rainfall in January in Cayenne14.4
    14.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Cayenne11
    11+ (Extreme) UV index
  • 81°F sea temperature in January in Cayenne81
    81°F sea temperature

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The January weather guide for French Guiana, represented by Cayenne, (Cayenne) 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 Cayenne in January?

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

How sunny is it in Cayenne in January?

There are normally 4 hours of bright sunshine each day in Cayenne in January - that's 34% of daylight hours.

How warm is the sea around Cayenne in January?

The average sea temperature around Cayenne in January is 81°F.

Does it rain in Cayenne in January?

There are usually 20 days with some rain in Cayenne in January and the average monthly rainfall is 14.4 inches.

Cayenne January sunrise & sunset times

Browse the sunrise and sunset times for Cayenne in January 2026. Select a month to view Cayenne sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 06:38 18:28
Friday, 16th January 2026 06:43 18:35
Saturday, 31st January 2026 06:45 18:40

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