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 22nd May 2024

You would never have guessed. It is going to be pouring down in Portsmouth today. The maximum temperature is going to be about 16°C (but it will feel like 13°C due to the wind chill factor).

The prospect of rain is high (around a 82% chance). Bring the washing in. Humidity will be approximately 86%.

The UV Index should be around 5 (moderate). If you are spending time outside you should wear sunscreen and stay in the shade around midday.

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 today (noon) will be approximately 13 mph (moderate breeze), blowing west south west.

Weather Forecast Tonight - Portsmouth - Wednesday 22nd May 2024

It will be cloudy in Portsmouth tonight. The minimum temperature at night is going to be 13°C (but it is going to feel like 11°C).

There is a reasonable chance of rain tonight (12% to be precise). Humidity will be around 87%.

The wind speed this evening will be approximately 13 mph (moderate breeze), blowing west south west.

Weather Forecast Tomorrow - Portsmouth - Thursday 23rd May 2024

Unfortunately, cloudy weather is expected tomorrow. The daytime temperature is forecast to peak at around 18°C (it will feel like 15 °C).

There is a slight chance of it pouring down tomorrow (roughly a 5% likelihood). The humidity level tomorrow will be roughly 57%.

The UV Index tomorrow is 6 (high). You should seek shade at midday, cover up and wear sunscreen.

Visibility tomorrow will be very good. From a good position, you should be able to see places as far as 20 to 40 km away (12.4 to 24.9 miles).

The wind speed at midday should be approximately 13 mph (moderate breeze), blowing 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 22nd May - DayHeavy Rain16 - 82135
Wednesday 22nd May - NightCloudy - 131213 -
Thursday 23rd May - DayCloudy18 - 5136
Thursday 23rd May - NightCloudy - 1157 -
Friday 24th May - DayCloudy15 - 6116
Friday 24th May - NightClear Night - 1004 -
Saturday 25th May - DayCloudy16 - 498
Saturday 25th May - NightCloudy - 13109 -
Sunday 26th May - DayPartly Cloudy16 - 12116
Sunday 26th May - NightClear Night - 1277 -

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, May 22, 2024) in Portsmouth is 5:05 am. Sunset is at 8:56 pm.

The day length today is 15 hours and 51 minutes.

Sunrise time tomorrow (Thursday, May 23, 2024) in Portsmouth is 5:03 am. Sunset time is 8:58 pm.

The day length tomorrow is 15 hours and 54 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.