Portsmouth Weather Forecast

Welcome to our weather forecast for Portsmouth, Hampshire. This is the place to check for the latest weather conditions and forecasts in the area, including today’s and tomorrow’s maximum temperatures, the chance of showers, and wind speeds.

You will also find a five-day forecast, as well as sunrise and sunset times.

Keep up with the latest weather information for Portsmouth so you can plan your days.

Weather Forecast Today - Portsmouth - Wednesday 27th September 2023

It will be cloudy today. Peak temperature should be approximately 20°C (but it will feel like 18°C due to the wind chill factor).

The odds of rain today are low (around a 8% chance). The humidity level today will be roughly 84%.

The UV Index is 2 (low). Suncream is not necessary.

Visibility today is good. Stand in a place with a good view and you should be able to see for 10 to 20 km (6.2 to 12.4 miles). The wind speed at midday will be around 13 mph (moderate breeze). The wind direction will be south south east.

Weather Forecast Tonight - Portsmouth - Wednesday 27th September 2023

It will be partly cloudy in Portsmouth tonight. The minimum temperature at night is going to be 16°C (but it is going to feel like 13°C).

There is a good chance it will rain tonight (56% to be precise). Humidity will be around 75%.

The wind speed this evening will be approximately 18 mph (fresh breeze), blowing west south west.

Weather Forecast Tomorrow - Portsmouth - Thursday 28th September 2023

Unfortunately, cloudy weather is expected tomorrow. The maximum daytime temperature will be around 18°C (it will feel like 15 °C).

The odds of rain tomorrow are low (around a 8% chance). Humidity tomorrow is forecast to be around 64%.

The UV Index tomorrow is going to be 2 (low). You can safely leave the sunscreen at home.

Visibility tomorrow should be very good.

The wind speed at midday should be approximately 13 mph (moderate breeze), blowing south west.

5-Day Forecast For Portsmouth

A 5-day weather forecast for Portsmouth is shown in the table below.

DateWeather TypeDay Max Temp (°C)Night Min Temp (°C)Chance of Rain (%)Wind Speed (mph)Max UV
Wednesday 27th September - DayCloudy20 - 8132
Wednesday 27th September - NightPartly Cloudy - 165618 -
Thursday 28th September - DayCloudy18 - 8132
Thursday 28th September - NightCloudy - 164513 -
Friday 29th September - DayPartly Cloudy19 - 9113
Friday 29th September - NightPartly Cloudy - 1147 -
Saturday 30th September - DaySunny Day17 - 393
Saturday 30th September - NightPartly Cloudy - 161113 -
Sunday 1st October - DayCloudy19 - 13132
Sunday 1st October - NightCloudy - 15107 -

Forecast - Location Details

The weather forecast for Portsmouth is based on data provided by the Met Office for the location shown on the map below. The weather in other areas of Portsmouth may vary slightly.

Map showing location of Met Office weather station in Portsmouth

Sunrise and Sunset Times

Sunrise time today (Wednesday, September 27, 2023) in Portsmouth is 6:58 am. Sunset is at 6:52 pm.

The day length today is 11 hours and 54 minutes.

Sunrise time tomorrow (Thursday, September 28, 2023) in Portsmouth is 6:59 am. Sunset time is 6:50 pm.

The day length tomorrow is 11 hours and 50 minutes.

Weather in Other Areas in South East England

We also offer weather outlooks for other areas in South East England:

Weather conditions in other areas of the United Kingdom (UK) can be found here.

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