Portsmouth (Portsmouth) weather

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Forecast days

Tue 8 Sep

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 06:29

Sunset: 19:34
Heavy rain changing to sunny intervals in the afternoon.

M UV

L Pollution

L Pollen
Next low tide: 03:03 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Tue 8 Sep

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Wed 9 Sep

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 11° Celsius;

Sunrise: 06:31

Sunset: 19:32
Sunny changing to cloudy by lunchtime.

M UV

L Pollution

L Pollen
First high tide: 11:01 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Wed 9 Sep

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius;
Thu 10 Sep

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 06:32

Sunset: 19:30
Sunny intervals changing to partly cloudy by early evening.

M UV

L Pollution

L Pollen
First high tide: 11:45 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Thu 10 Sep

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Fri 11 Sep

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 06:34

Sunset: 19:27
Light rain changing to overcast by late morning.

M UV

L Pollution

L Pollen
First high tide: 12:25 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Fri 11 Sep

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Sat 12 Sep

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 06:35

Sunset: 19:25
Sunny intervals changing to partly cloudy by early evening.

M UV

No pollution data.

No pollen data.
First high tide: 00:27 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Sat 12 Sep

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Sun 13 Sep

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 06:37

Sunset: 19:23
Overcast.

M UV

No pollution data.

No pollen data.
First high tide: 01:07 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Sun 13 Sep

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Mon 14 Sep

Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 17° Celsius;

Sunrise: 06:38

Sunset: 19:21
Overcast.

M UV

No pollution data.

No pollen data.
First high tide: 01:49 for
Old Portsmouth Beach (Victoria Pier) (Beach)
Eastney (Beach)

2.2 miles
Mon 14 Sep

Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius;

Heavy rain changing to sunny intervals in the afternoon.

Sunrise: 06:29

Sunset: 19:34

M UV

L Pollution

L Pollen

Next low tide: 03:03 for

Old Portsmouth Beach (Victoria Pier) (Beach)

7 day forecast for Portsmouth

Today (8 September 2026)

Time	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	70%	90%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	90%	80%	70%	40%	20%	10%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	18°	17°	17°	17°	16°	16°	16°	16°	16°	16°	16°	17°	17°	18°	18°	20°	20°	19°	18°	17°	16°	15°	15°
Feels like temperature (°C)	17°	16°	16°	16°	15°	15°	15°	15°	15°	16°	16°	16°	16°	17°	17°	18°	17°	16°	16°	15°	14°	14°	13°
Wind direction and speed (mph)	WSW 9	WSW 9	WSW 9	WSW 9	WSW 8	WSW 8	WSW 7	WSW 7	WSW 7	WSW 7	W 7	WNW 7	WNW 7	NW 7	WNW 8	WNW 8	WNW 10	WNW 11	WNW 11	WNW 11	WNW 9	WNW 9	WNW 9
Wind gust (mph)	22	23	24	23	23	22	21	20	21	19	17	18	20	20	21	23	25	24	24	25	25	24	23
Visibility (description)	VG	G	M	M	M	M	M	M	M	M	M	M	M	G	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	77%	84%	89%	93%	93%	93%	95%	94%	93%	92%	90%	89%	87%	79%	64%	48%	44%	43%	50%	56%	63%	67%	73%
UV	-	-	-	-	-	1	1	1	1	1	1	2	3	4	3	2	1	1	1	-	-	-	-

Wednesday (9 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	14°	14°	14°	13°	13°	13°	12°	12°	13°	14°	16°	17°	18°	19°	19°	19°	20°	20°	19°	18°	18°	17°	16°	15°
Feels like temperature (°C)	12°	12°	12°	12°	12°	11°	11°	11°	11°	13°	14°	16°	16°	17°	17°	18°	18°	18°	18°	18°	17°	16°	16°	15°
Wind direction and speed (mph)	WNW 9	WNW 9	WNW 9	WNW 9	WNW 8	WNW 8	WNW 8	WNW 8	NW 9	NW 9	NW 9	NW 9	NW 8	NW 7	NW 7	NW 7	NW 7	NW 7	NW 6	NW 4	NW 4	NW 4	NW 4	NW 4
Wind gust (mph)	22	22	22	22	21	21	21	20	21	21	21	20	19	18	17	17	16	14	13	12	12	13	14	12
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	76%	77%	78%	80%	81%	82%	83%	76%	70%	63%	55%	52%	44%	41%	41%	41%	41%	42%	52%	57%	59%	63%	65%
UV	-	-	-	-	-	-	1	1	1	2	3	4	5	5	4	3	2	1	1	1	-	-	-	-

Thursday (10 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	10%	10%	10%	10%	<5%	<5%	<5%	<5%	<5%	<5%	10%	20%	30%
Temperature (°C)	14°	14°	13°	12°	12°	12°	12°	11°	12°	14°	16°	18°	19°	19°	19°	19°	19°	19°	19°	18°	17°	17°	17°	17°
Feels like temperature (°C)	14°	13°	12°	12°	12°	11°	11°	11°	12°	14°	16°	17°	18°	18°	18°	18°	18°	18°	17°	16°	16°	16°	16°	16°
Wind direction and speed (mph)	NNW 4	NNW 4	NW 4	NW 3	NNW 3	NNW 3	NNW 3	NNW 3	N 2	NNE 2	S 4	S 4	S 5	S 7	S 7	S 7	SSW 8	SSW 7	SSW 7	SW 8	SW 7	SSW 7	SSW 7	SSW 7
Wind gust (mph)	11	10	10	9	9	10	9	8	9	9	11	13	15	16	18	18	18	17	17	14	13	14	15	16
Visibility (description)	VG	VG	VG	VG	VG	VG	G	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	69%	73%	74%	75%	77%	79%	81%	81%	75%	71%	63%	55%	52%	51%	50%	52%	53%	55%	56%	61%	64%	66%	68%	71%
UV	-	-	-	-	-	-	1	1	1	2	3	4	4	4	4	3	2	1	1	1	-	-	-	-

Friday (11 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	30%	50%	50%	50%	60%	60%	60%	60%	60%	50%	40%	30%	20%	20%	20%	10%	10%	10%	10%	10%	10%	10%	10%	10%
Temperature (°C)	17°	16°	16°	16°	16°	16°	16°	16°	16°	16°	17°	18°	19°	19°	20°	20°	20°	20°	20°	19°	18°	18°	17°	17°
Feels like temperature (°C)	16°	15°	15°	15°	16°	16°	16°	15°	15°	16°	17°	18°	18°	19°	19°	19°	19°	19°	19°	19°	18°	17°	17°	16°
Wind direction and speed (mph)	SSW 7	SSW 7	SSW 7	SW 6	SSW 5	SSW 6	SSW 6	SSW 5	SSW 6	SSW 6	SW 7	SSW 7	S 7	SSW 7	SSW 7	SSW 7	S 7	SSW 7	S 6	SSW 6	W 5	N 4	N 4	N 4
Wind gust (mph)	16	16	16	18	18	18	17	17	18	17	17	17	17	17	16	15	13	13	11	10	11	11	11	11
Visibility (description)	VG	VG	G	G	M	M	M	M	M	G	G	G	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	G
Humidity	72%	75%	78%	84%	85%	85%	86%	87%	87%	86%	84%	80%	74%	71%	65%	63%	61%	61%	63%	68%	74%	76%	77%	79%
UV	-	-	-	-	-	-	1	1	1	2	2	3	4	4	4	3	2	1	1	1	-	-	-	-

Saturday (12 September 2026)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%
Temperature (°C)	16°	15°	13°	12°	17°	20°	20°	19°	16°
Feels like temperature (°C)	16°	15°	13°	12°	17°	20°	19°	18°	16°
Wind direction and speed (mph)	N 4	NNE 4	NNE 4	NNE 3	E 4	SSW 6	SSW 7	SW 7	SW 7
Wind gust (mph)	11	12	11	10	13	16	15	13	12
Visibility (description)	G	G	G	G	VG	VG	VG	VG	G
Humidity	79%	81%	84%	86%	74%	63%	59%	69%	82%
UV	-	-	-	1	3	5	2	1	-

Sunday (13 September 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	20%	20%	30%	30%	20%	20%	10%	<5%
Temperature (°C)	16°	15°	16°	18°	20°	20°	19°	18°
Feels like temperature (°C)	16°	15°	15°	18°	20°	20°	19°	18°
Wind direction and speed (mph)	SW 6	SW 6	WSW 7	SW 7	WSW 7	WSW 7	WSW 7	WSW 7
Wind gust (mph)	13	14	17	20	20	19	15	13
Visibility (description)	G	G	M	G	G	G	G	G
Humidity	85%	91%	92%	87%	80%	78%	85%	91%
UV	-	-	1	2	4	2	1	-

Monday (14 September 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	10%	10%	10%	10%	10%
Temperature (°C)	17°	16°	15°	18°	21°	21°	20°	18°
Feels like temperature (°C)	17°	15°	15°	18°	20°	20°	19°	18°
Wind direction and speed (mph)	W 7	W 7	W 6	WSW 7	WSW 8	SW 9	SW 8	WSW 8
Wind gust (mph)	11	10	13	17	19	18	15	15
Visibility (description)	M	M	M	G	G	VG	G	G
Humidity	94%	96%	96%	87%	79%	75%	83%	91%
UV	-	-	1	2	4	2	1	-

UK video forecast

Portsmouth weather map

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London & South East England weather forecast

Headline:

Rain spreading east overnight, becoming persistent through Tuesday morning.

This Evening and Tonight:

Fine and dry at first, with any early evening sunshine becoming increasingly hazy. Cloud will steadily thicken from the west, bringing outbreaks of light rain overnight. Becoming breezy, especially along the coast, with the rain turning heavier around dawn. Minimum temperature 12 °C.

Tuesday:

Rain, persistent through the morning, will gradually move eastwards, clearing Kent by mid-afternoon. Dry conditions will follow, with sunny spells for most, although it will become increasingly breezy. Maximum temperature 21 °C.

Outlook for Wednesday to Friday:

Sunny spells and isolated showers Wednesday, wind easing. Mostly dry Thursday, with hazy sunshine. Early rain and breeze Friday clearing later. Temperatures around average for early September.

Updated: 16:00 (UTC+1) on Mon 7 Sep 2026

UK long range weather forecast

Remaining changeable, with occasional rain or showers arriving from the North Atlantic, most frequent across northern and western parts of the UK, where some strong winds will also be possible at times. However, there will also be some reasonable dry and more settled periods, especially across southern areas. Later in the month, high pressure may become more dominant in the vicinity of the UK, perhaps bringing more widely settled conditions for a time, especially away from the far north. Temperatures for the period as a whole will probably be close to average overall, but there is scope for some rather warm days at times, along with occasional relatively cool nights.

Updated: 13:00 (UTC+1) on Mon 7 Sep 2026

High pressure initially close to the UK, with a continuation of more settled conditions at times, may start to weaken its influence on the weather later in the month and into early October. As a result, it may become more changeable with a greater chance of rain or showers in places, and perhaps some strong winds at times too. Temperatures will likely be a little above average overall, with relatively cool nights possible at first tending to reduce in frequency later in the period.

Updated: 14:00 (UTC+1) on Mon 7 Sep 2026

Portsmouth (Portsmouth) weather

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Forecast days

Tue 8 Sep

Tue 8 Sep

Wed 9 Sep

Wed 9 Sep

Thu 10 Sep

Thu 10 Sep

Fri 11 Sep

Fri 11 Sep

Sat 12 Sep

Sat 12 Sep

Sun 13 Sep

Sun 13 Sep

Mon 14 Sep

Mon 14 Sep

7 day forecast for Portsmouth

Tooltip header

UK video forecast

London & South East England weather forecast

Headline:

This Evening and Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Nearest forecasts

Portsmouth (Portsmouth) weather

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Forecast days

Tue 8 Sep

Tue 8 Sep

Wed 9 Sep

Wed 9 Sep

Thu 10 Sep

Thu 10 Sep

Fri 11 Sep

Fri 11 Sep

Sat 12 Sep

Sat 12 Sep

Sun 13 Sep

Sun 13 Sep

Mon 14 Sep

Mon 14 Sep

7 day forecast for Portsmouth

UK video forecast

London & South East England weather forecast

Monday 7 Sep - Friday 11 Sep

Headline:

This Evening and Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Saturday 12 Sep - Monday 21 Sep

Tuesday 22 Sep - Tuesday 6 Oct

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