10-Day Weather Forecast for Portsmouth

Six-hourly outlook through Tuesday 8 September. Updated every three hours via MET Norway.

Day
Night
01:00
Morning
07:00
Afternoon
13:00
Evening
19:00
Sunday
30 Aug
Light rain showers
18°C (64°F)
0.7 mm (0.03 in)
Light rain showers
19°C (66°F)
0.8 mm (0.03 in)
Rain showers
18°C (64°F)
4.9 mm (0.2 in)
Hourly ›
Monday
31 Aug
Mostly clear
16°C (61°F)
0.3 mm (0.01 in)
Mostly sunny
16°C (61°F)
0.4 mm (0.02 in)
Light rain showers
21°C (70°F)
0.5 mm (0.02 in)
Cloudy
19°C (66°F)
0 mm (0 in)
Hourly ›
Tuesday
1 Sep
Mostly clear
15°C (59°F)
0 mm (0 in)
Mostly sunny
14°C (57°F)
0 mm (0 in)
Cloudy
19°C (66°F)
0.1 mm (0 in)
Cloudy
18°C (64°F)
0 mm (0 in)
Hourly ›
Wednesday
2 Sep
Cloudy
17°C (63°F)
0 mm (0 in)
Cloudy
17°C (63°F)
0.4 mm (0.02 in)
Cloudy
20°C (68°F)
0.1 mm (0 in)
Partly cloudy
19°C (66°F)
0 mm (0 in)
Hourly ›
Thursday
3 Sep
Cloudy
19°C (66°F)
0 mm (0 in)
Cloudy
19°C (66°F)
0 mm (0 in)
Cloudy
21°C (70°F)
0 mm (0 in)
Cloudy
20°C (68°F)
0 mm (0 in)
Hourly ›
Friday
4 Sep
Cloudy
19°C (66°F)
0.2 mm (0.01 in)
Cloudy
19°C (66°F)
0.4 mm (0.02 in)
Cloudy
22°C (72°F)
0 mm (0 in)
Partly cloudy
20°C (68°F)
0 mm (0 in)
Hourly ›
Saturday
5 Sep
Clear skies
17°C (63°F)
0.1 mm (0 in)
Cloudy
18°C (64°F)
0.1 mm (0 in)
Mostly sunny
21°C (70°F)
0 mm (0 in)
Mostly clear
19°C (66°F)
0 mm (0 in)
Hourly ›
Sunday
6 Sep
Cloudy
18°C (64°F)
0 mm (0 in)
Heavy rain
19°C (66°F)
5.3 mm (0.2 in)
Cloudy
17°C (63°F)
0 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Hourly ›
Monday
7 Sep
Clear skies
14°C (57°F)
0 mm (0 in)
Partly cloudy
12°C (54°F)
0 mm (0 in)
Cloudy
17°C (63°F)
0 mm (0 in)
Cloudy
17°C (63°F)
0 mm (0 in)
Hourly ›
Tuesday
8 Sep
Light rain
15°C (59°F)
0.6 mm (0.02 in)
Rain
17°C (63°F)
1.1 mm (0.04 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Portsmouth this week?

Today's weather - Sunday 30 Aug

For Sunday the predicted weather in Portsmouth is light rain showers throughout the day. The maximum temperature is a pleasant 19°C (66°F), while the minimum temperature is a mild 18°C (64°F).

Tomorrow's weather - Monday 31 Aug

The forecast for Portsmouth on Monday is light rain showers during the afternoon. High temperatures will reach a pleasant 21°C (70°F), with lows dropping to around 16°C (61°F).

10-Day Weather Forecast

The 10-day forecast shows that temperatures will vary between 19°C (66°F) and 22°C (72°F). During this period, expect daytime highs around 20°C (68°F) and nighttime lows around 17°C (63°F). Compared to August norms, this represents typical weather. There will be plenty of sunshine during this period. Precipitation levels will be typical for the season, featuring mixed conditions, with some heavy rain showers especially on Sun, Sun. There will be rain on around 3 days (Sun, Mon, Sun).

Weather Forecast FAQ for Portsmouth

When will be the warmest day next week?

The warmest day is expected to be Friday with a high of 22°C (72°F).

When will be the coldest day?

The coldest day is forecasted for Tuesday with a low of 14°C (57°F).

Will it rain next week in Portsmouth?

Yes, rain is expected on 3 days , specifically on Sun, Mon, Sun.

How much rainfall is expected next week?

A total of 14 mm (0.6 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 14°C (57°F) to 22°C (72°F).

More about Portsmouth

Explore the full Portsmouth climate overview with monthly averages, or check rainfall data and temperature by month.

Portsmouth weather by month

Browse monthly averages for Portsmouth: climate by month with temperature, rainfall and sunshine.

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