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Weather forecast in Portland Harbour

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This data display current weather and forecast for the coming days in Portland Harbour. In addition to temperature, wind, humidity and pressure, we include data on the probability of precipitation so you can have all the information about your destination before your trip.

Portland Harbour current temperature and weather

27 September 2025
Night
Partly Cloudy
13.1°C
Feels like:
11.8°C
Partly Cloudy
Wind: 14.8 Km/h (9.2 mph) S S
Pressure: 1018 hPa (30.07 inHg)
Humidity: 75%
Precip. prob.: 0%
Visibility: 10 km (6 mi)

UV index: 0
Morning
Patchy rain nearby
15.1°C
Feels like:
15.1°C
Patchy rain nearby
Wind: 22.7 Km/h (14.1 mph) S S
Pressure: 1019 hPa (30.09 inHg)
Humidity: 73%
Precip. prob.: 100%
Visibility: 10 km (6 mi)

UV index: 0.4
Day
Patchy rain nearby
15.2°C
Feels like:
15.2°C
Patchy rain nearby
Wind: 23.4 Km/h (14.5 mph) S S
Pressure: 1019 hPa (30.09 inHg)
Humidity: 74%
Precip. prob.: 77%
Visibility: 10 km (6 mi)

UV index: 1.2
Evening
Cloudy
14.5°C
Feels like:
13.2°C
Cloudy
Wind: 18 Km/h (11.2 mph) S S
Pressure: 1020 hPa (30.11 inHg)
Humidity: 74%
Precip. prob.: 0%
Visibility: 10 km (6 mi)

UV index: 0


Marine weather forecast Portland Harbour

The graphs show wave heights and directions, as well as wind speed and direction in Portland Harbour for the coming days. Click on the sea state chart for more details




You may also be interested in other sections of our site for Portland Harbour: Sea temperature, Sunrise and Sunset, Tides

Portland Harbour weather by month

In order for you to be able to estimate what the weather is like in Portland Harbour throughout the year, we provide monthly data for the last few years. Select the month you are interested in.

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Dorset photo gallery

  • Sunrise January 2024
  • Dorset
  • Lyme Regis bay and Cobb from the gardens above the beach.
  • Dorset

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

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Our report for Portland Harbour is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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