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10-Day Weather Forecast for Portsmouth
Six-hourly outlook through Tuesday 6 October. Updated every three hours via MET Norway.
Day
Night
03:00
Morning
08:00
Afternoon
14:00
Evening
20:00
Sunday
27 Sep
28°C (82°F)
0 mm (0 in)
28°C (82°F)
0.1 mm (0 in)
30°C (86°F)
0.1 mm (0 in)
28°C (82°F)
0.3 mm (0.01 in)
Hourly ›
Sun
27 Sep
Hourly ›
night
28°C (82°F)
0 mm (0 in)
morning
28°C (82°F)
0.1 mm (0 in)
afternoon
30°C (86°F)
0.1 mm (0 in)
evening
28°C (82°F)
0.3 mm (0.01 in)
Monday
28 Sep
27°C (81°F)
0.6 mm (0.02 in)
27°C (81°F)
0.2 mm (0.01 in)
30°C (86°F)
0.1 mm (0 in)
28°C (82°F)
0.7 mm (0.03 in)
Hourly ›
Mon
28 Sep
Hourly ›
night
27°C (81°F)
0.6 mm (0.02 in)
morning
27°C (81°F)
0.2 mm (0.01 in)
afternoon
30°C (86°F)
0.1 mm (0 in)
evening
28°C (82°F)
0.7 mm (0.03 in)
Tuesday
29 Sep
27°C (81°F)
0.3 mm (0.01 in)
28°C (82°F)
0.7 mm (0.03 in)
29°C (84°F)
0.1 mm (0 in)
28°C (82°F)
0 mm (0 in)
Hourly ›
Tue
29 Sep
Hourly ›
night
27°C (81°F)
0.3 mm (0.01 in)
morning
28°C (82°F)
0.7 mm (0.03 in)
afternoon
29°C (84°F)
0.1 mm (0 in)
evening
28°C (82°F)
0 mm (0 in)
Wednesday
30 Sep
27°C (81°F)
1.5 mm (0.1 in)
26°C (79°F)
0.4 mm (0.02 in)
28°C (82°F)
0 mm (0 in)
27°C (81°F)
0.2 mm (0.01 in)
Hourly ›
Wed
30 Sep
Hourly ›
night
27°C (81°F)
1.5 mm (0.1 in)
morning
26°C (79°F)
0.4 mm (0.02 in)
afternoon
28°C (82°F)
0 mm (0 in)
evening
27°C (81°F)
0.2 mm (0.01 in)
Thursday
1 Oct
25°C (77°F)
0 mm (0 in)
28°C (82°F)
0.6 mm (0.02 in)
30°C (86°F)
0 mm (0 in)
28°C (82°F)
0.4 mm (0.02 in)
Hourly ›
Thu
1 Oct
Hourly ›
night
25°C (77°F)
0 mm (0 in)
morning
28°C (82°F)
0.6 mm (0.02 in)
afternoon
30°C (86°F)
0 mm (0 in)
evening
28°C (82°F)
0.4 mm (0.02 in)
Friday
2 Oct
27°C (81°F)
0.1 mm (0 in)
28°C (82°F)
0.2 mm (0.01 in)
30°C (86°F)
0 mm (0 in)
28°C (82°F)
0.4 mm (0.02 in)
Hourly ›
Fri
2 Oct
Hourly ›
night
27°C (81°F)
0.1 mm (0 in)
morning
28°C (82°F)
0.2 mm (0.01 in)
afternoon
30°C (86°F)
0 mm (0 in)
evening
28°C (82°F)
0.4 mm (0.02 in)
Saturday
3 Oct
27°C (81°F)
0.2 mm (0.01 in)
28°C (82°F)
0.4 mm (0.02 in)
29°C (84°F)
0.2 mm (0.01 in)
28°C (82°F)
0 mm (0 in)
Hourly ›
Sat
3 Oct
Hourly ›
night
27°C (81°F)
0.2 mm (0.01 in)
morning
28°C (82°F)
0.4 mm (0.02 in)
afternoon
29°C (84°F)
0.2 mm (0.01 in)
evening
28°C (82°F)
0 mm (0 in)
Sunday
4 Oct
28°C (82°F)
0.3 mm (0.01 in)
28°C (82°F)
0.2 mm (0.01 in)
28°C (82°F)
0.2 mm (0.01 in)
28°C (82°F)
0.5 mm (0.02 in)
Hourly ›
Sun
4 Oct
Hourly ›
night
28°C (82°F)
0.3 mm (0.01 in)
morning
28°C (82°F)
0.2 mm (0.01 in)
afternoon
28°C (82°F)
0.2 mm (0.01 in)
evening
28°C (82°F)
0.5 mm (0.02 in)
Monday
5 Oct
27°C (81°F)
0 mm (0 in)
28°C (82°F)
0.7 mm (0.03 in)
28°C (82°F)
0.1 mm (0 in)
27°C (81°F)
0.2 mm (0.01 in)
Hourly ›
Mon
5 Oct
Hourly ›
night
27°C (81°F)
0 mm (0 in)
morning
28°C (82°F)
0.7 mm (0.03 in)
afternoon
28°C (82°F)
0.1 mm (0 in)
evening
27°C (81°F)
0.2 mm (0.01 in)
Tuesday
6 Oct
27°C (81°F)
0.2 mm (0.01 in)
—
—
—
Hourly ›
Tue
6 Oct
Hourly ›
night
27°C (81°F)
0.2 mm (0.01 in)
morning
—
afternoon
—
evening
—
Data from MET Norway · Updated every three hours.
What's the weather in Portsmouth this week?
Today's weather - Sunday 27 Sep
For Sunday the predicted weather in Portsmouth is mostly sunny with some rain. The maximum temperature is a very warm 30°C (86°F), while the minimum temperature is a warm 28°C (82°F).
Tomorrow's weather - Monday 28 Sep
The forecast for Portsmouth on Monday is mostly sunny with some rain during the evening and night. Temperatures will range from a warm 27°C (81°F) to a warm 30°C (86°F).
10-Day Weather Forecast
During the next 10 days, temperatures will remain fairly stable, with average highs of 29°C (84°F) and lows of 27°C (81°F). Compared to typical September conditions, these temperatures are typical. There will be some sunshine throughout this time. Rain amounts are forecast to be much less than usual (relative to standard September patterns), with some rainy days. Precipitation is likely on approximately 4 days (Mon, Tue, Wed, Sun).
Weather Forecast FAQ for Portsmouth
When will be the warmest day next week?
The warmest day is expected to be Sunday with a high of 30°C (86°F).
When will be the coldest day?
The coldest day is forecasted for Thursday with a low of 25°C (77°F).
Will it rain next week in Portsmouth?
Yes, rain is expected on 4 days , specifically on Mon, Tue, Wed, Sun.
How much rainfall is expected next week?
A total of 9 mm (0.4 in) of rain is forecasted for the 10-day period.
What will be the temperature range next week?
Temperatures will range from 25°C (77°F) to 30°C (86°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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