Portsmouth weather in April 2026

Expect daytime maximum temperatures of 86°F in Portsmouth, Dominica in April and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 14 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 86°F maximum daytime temperature in April in Portsmouth86
    86°F max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in April in Portsmouth14
    14 days with some rainfall
  • 72°F minimum night-time temperature in April in Portsmouth72
    72°F min night temperature
  • 12 hours of daylight per day in April in Portsmouth12
    12 hours of daylight per day
  • High heat & humidity in April in PortsmouthH
    High heat & humidity
  • 4.1 inches monthly rainfall in April in Portsmouth4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Portsmouth11
    11+ (Extreme) UV index
  • 81°F sea temperature in April in Portsmouth81
    81°F sea temperature

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The April weather guide for Dominica (Portsmouth) 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 Portsmouth in April?

Daytime temperatures usually reach 86°F in Portsmouth in April with high heat and humidity, falling to 72°F at night.

How sunny is it in Portsmouth in April?

There are normally 8 hours of bright sunshine each day in Portsmouth in April - that's 66% of daylight hours.

How warm is the sea around Portsmouth in April?

The average sea temperature around Portsmouth in April is 81°F.

Does it rain in Portsmouth in April?

There are usually 14 days with some rain in Portsmouth in April and the average monthly rainfall is 3.4 inches.

Portsmouth April sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2026 06:01 18:18
Wednesday, 15th April 2026 05:51 18:21
Thursday, 30th April 2026 05:43 18:24

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