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 - Saturday 25th March 2023
It will be partly cloudy in Portsmouth today. Peak temperature should be approximately 13°C (but it will feel like 10°C due to the wind chill factor).
There is a slight chance of it pouring down today (roughly a 7% likelihood). The humidity level today will be roughly 60%.
Expect a UV Index of around 1 (low). The sunscreen can stay at the back of the cupboard.
The visibility level is expected to be good. You should be able to see places as far as 10 to 20 km away (6.2 to 12.4 miles). The wind speed today (noon) will be approximately 16 mph (moderate breeze), blowing west south west.
Today's forecast courtesy of Met Office.
Weather Forecast Tonight - Portsmouth - Saturday 25th March 2023
There will be light rain showers in Portsmouth tonight. The minimum temperature at night is going to be 7°C (but it is going to feel like 4°C).
There is a good chance it will rain tonight (98% to be precise). Humidity will be around 91%.
The wind speed this evening will be approximately 11 mph (gentle breeze), blowing south south east.
Tonight's forecast courtesy of Met Office.
Weather Forecast Tomorrow - Portsmouth - Sunday 26th March 2023
There are going to be light rain showers in Portsmouth tomorrow. The maximum daytime temperature will be around 11°C (it will feel like 7 °C).
A downpour is more likely than not (roughly a 81% chance). Expect humidity of approximately 81%.
The UV Index tomorrow is 3 (moderate). Sun protection is recommended. You should stay in the shade at midday.
The visibility level tomorrow is expected to be very good. From a good vantage point, you should be able to see for 20 to 40 km (12.4 to 24.9 miles).
The wind speed tomorrow at noon is forecast to be 13 mph (moderate breeze). The wind direction will be north.
Tomorrow's forecast courtesy of Met Office.
5-Day Forecast For Portsmouth
A 5-day weather forecast for Portsmouth is shown in the table below.
| Date | Weather Type | Day Max Temp (°C) | Night Min Temp (°C) | Chance of Rain (%) | Wind Speed (mph) | Max UV |
|---|---|---|---|---|---|---|
| Saturday 25th March - Day | Partly Cloudy | 13 | - | 7 | 16 | 1 |
| Saturday 25th March - Night | Light Rain | - | 7 | 98 | 11 | - |
| Sunday 26th March - Day | Light Rain | 11 | - | 81 | 13 | 3 |
| Sunday 26th March - Night | Cloudy | - | 4 | 5 | 7 | - |
| Monday 27th March - Day | Cloudy | 8 | - | 5 | 4 | 3 |
| Monday 27th March - Night | Cloudy | - | 7 | 8 | 13 | - |
| Tuesday 28th March - Day | Cloudy | 10 | - | 14 | 18 | 2 |
| Tuesday 28th March - Night | Overcast | - | 9 | 16 | 13 | - |
| Wednesday 29th March - Day | Light Rain | 12 | - | 76 | 18 | 2 |
| Wednesday 29th March - Night | Light Rain | - | 10 | 76 | 20 | - |
5-day forecast courtesy of Met Office.
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.
Forecast courtesy of Met Office.
Sunrise and Sunset Times
Sunrise time today (Sunday, March 26, 2023) in Portsmouth is 6:53 am. Sunset is at 7:26 pm.
The day length today is 12 hours and 32 minutes.
Sunrise time tomorrow (Sunday, March 26, 2023) in Portsmouth is 6:53 am. Sunset time is 7:26 pm.
The day length tomorrow is 12 hours and 32 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.