Portsmouth weather in April 2026

Expect daytime maximum temperatures of 30°C 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 105 mm of rainfall in the month.

  • 30°C maximum daytime temperature in April in Portsmouth30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in April in Portsmouth14
    14 days with some rainfall
  • 22°C minimum night-time temperature in April in Portsmouth22
    22°C 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
  • 105 mm monthly rainfall in April in Portsmouth105
    105 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Portsmouth11
    11+ (Extreme) UV index
  • 27°C sea temperature in April in Portsmouth27
    27°C sea temperature

More about Portsmouth

Portsmouth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Dominica

Marella Cruises: up to £300 off 2026/2027 sailings

  • Save up to £300 on sailings (1 Apr 2026-30 Apr 2027)
  • Book online in Marella Cruises sale with myTUI account
  • Discount varies on destination. Min 7 nights duration
Show discount codeShow discount code ******WAY
Redeem Marella Cruises discount code >>

Expires at 23:59 on Saturday 31st Jan 2026 · View all Marella Cruises offers

Marella CruisesCruise deal finder

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 / mm)  |  Imperial (°F / inches)

Back to top

How hot is it in Portsmouth in April?

Daytime temperatures usually reach 30°C in Portsmouth in April with high heat and humidity, falling to 22°C 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 27°C.

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 87mm.

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

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^