Dailymet

Weather Portsmouth: Current forecast

Portsmouth / United Kingdom

11.7 °C
Feels like 4.6 °C
Min 10 °C / Max 14 °C
Weather Portsmouth: Light drizzle, 12 °C Light drizzle
47.2 km/h W
Wind
65.5 km/h W
Gusts
1005 hPa
Pressure
0.3 mm
Precipitation
70 %
Humidity
1
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass None
Mugwort None
Ragweed None
07:37 / 18:00
Sunrise / Sunset
16:17 / 02:06
Moonrise / Moonset
Waxing Moon (86 %)
Moon phase

Updated: Oct 21, 2026, 15:40 CEST Oct 21, 2026, 14:40 BST

Today's Summary

In Portsmouth the weather today is light drizzle. The thermometer currently shows 11.7°C. With wind from the west, it feels noticeably colder, around 4.6°C. Don't forget a jacket or jumper. During the day temperatures will range between 9.8°C and 13.8°C.

Hourly forecast – Portsmouth, today

Oct 21, 15:00
12 °C
Sunny
Portsmouth Oct 21, 15:00: Sunny, 12 °C
Oct 21, 16:00
12 °C
Clear
Portsmouth Oct 21, 16:00: Clear, 12 °C
Oct 21, 17:00
12 °C
Clear
Portsmouth Oct 21, 17:00: Clear, 12 °C
Oct 21, 18:00
12 °C
Clear
Portsmouth Oct 21, 18:00: Clear, 12 °C
Oct 21, 19:00
12 °C
Clear
Portsmouth Oct 21, 19:00: Clear, 12 °C
Oct 21, 20:00
12 °C
Overcast
Portsmouth Oct 21, 20:00: Overcast, 12 °C
Oct 21, 21:00
13 °C
Light drizzle
Portsmouth Oct 21, 21:00: Light drizzle, 13 °C
Oct 21, 22:00
10 °C
Heavy rain
Portsmouth Oct 21, 22:00: Heavy rain, 10 °C
Oct 21, 23:00
10 °C
Moderate rain
Portsmouth Oct 21, 23:00: Moderate rain, 10 °C
Oct 22, 00:00
12 °C
Moderate or heavy rain with thunder
Portsmouth Oct 22, 00:00: Moderate or heavy rain with thunder, 12 °C
Oct 22, 01:00
12 °C
Patchy rain possible
Portsmouth Oct 22, 01:00: Patchy rain possible, 12 °C
Oct 22, 02:00
12 °C
Patchy rain possible
Portsmouth Oct 22, 02:00: Patchy rain possible, 12 °C
Oct 22, 03:00
13 °C
Patchy rain possible
Portsmouth Oct 22, 03:00: Patchy rain possible, 13 °C
Oct 22, 04:00
12 °C
Clear
Portsmouth Oct 22, 04:00: Clear, 12 °C
Oct 22, 05:00
12 °C
Clear
Portsmouth Oct 22, 05:00: Clear, 12 °C
Oct 22, 06:00
12 °C
Sunny
Portsmouth Oct 22, 06:00: Sunny, 12 °C
Oct 22, 07:00
12 °C
Sunny
Portsmouth Oct 22, 07:00: Sunny, 12 °C
Oct 22, 08:00
12 °C
Sunny
Portsmouth Oct 22, 08:00: Sunny, 12 °C
Oct 22, 09:00
13 °C
Partly cloudy
Portsmouth Oct 22, 09:00: Partly cloudy, 13 °C
Oct 22, 10:00
14 °C
Cloudy
Portsmouth Oct 22, 10:00: Cloudy, 14 °C
Oct 22, 11:00
14 °C
Overcast
Portsmouth Oct 22, 11:00: Overcast, 14 °C
Oct 22, 12:00
14 °C
Overcast
Portsmouth Oct 22, 12:00: Overcast, 14 °C
Oct 22, 13:00
14 °C
Cloudy
Portsmouth Oct 22, 13:00: Cloudy, 14 °C
Oct 22, 14:00
15 °C
Overcast
Portsmouth Oct 22, 14:00: Overcast, 15 °C
Time
15
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
Portsmouth Oct 21, 15:00: Sunny
Portsmouth Oct 21, 16:00: Clear
Portsmouth Oct 21, 17:00: Clear
Portsmouth Oct 21, 18:00: Clear
Portsmouth Oct 21, 19:00: Clear
Portsmouth Oct 21, 20:00: Overcast
Portsmouth Oct 21, 21:00: Light drizzle
Portsmouth Oct 21, 22:00: Heavy rain
Portsmouth Oct 21, 23:00: Moderate rain
Portsmouth Oct 22, 00:00: Moderate or heavy rain with thunder
Portsmouth Oct 22, 01:00: Patchy rain possible
Portsmouth Oct 22, 02:00: Patchy rain possible
Portsmouth Oct 22, 03:00: Patchy rain possible
Portsmouth Oct 22, 04:00: Clear
Portsmouth Oct 22, 05:00: Clear
Portsmouth Oct 22, 06:00: Sunny
Portsmouth Oct 22, 07:00: Sunny
Portsmouth Oct 22, 08:00: Sunny
Portsmouth Oct 22, 09:00: Partly cloudy
Portsmouth Oct 22, 10:00: Cloudy
Portsmouth Oct 22, 11:00: Overcast
Portsmouth Oct 22, 12:00: Overcast
Portsmouth Oct 22, 13:00: Cloudy
Portsmouth Oct 22, 14:00: Overcast
Temperature (°C)
Chance of rain (%)
4
5
5
6
6
18
35
91
88
78
27
18
17
8
7
7
7
6
7
10
13
15
12
16
Precipitation
—
—
—
—
—
—
0.2 mm
8.8 mm
4.3 mm
2.1 mm
0 mm
0 mm
0 mm
—
—
—
—
—
—
—
—
—
—
—
Wind (km/h)
W
44
W
42
W
40
W
40
W
40
W
37
WSW
40
W
25
W
8
W
37
W
37
W
41
W
39
W
35
W
31
W
30
W
26
W
25
W
23
W
23
WSW
22
WSW
24
SW
23
SW
18
Pressure (hPa)
1007
1008
1009
1010
1010
1010
1010
1009
1008
1007
1007
1007
1008
1008
1009
1009
1010
1011
1011
1011
1011
1011
1010
1010
Humidity (%)
62 %
64 %
64 %
65 %
67 %
67 %
69 %
89 %
91 %
83 %
84 %
78 %
74 %
75 %
74 %
74 %
73 %
69 %
64 %
61 %
61 %
63 %
64 %
64 %
Cloud cover (%)
6 %
6 %
5 %
20 %
14 %
100 %
100 %
100 %
100 %
100 %
87 %
66 %
79 %
5 %
1 %
1 %
2 %
5 %
38 %
72 %
89 %
96 %
78 %
100 %

14-day weather forecast – Portsmouth

14-day trend for Portsmouth: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 9°C at night, with daytime highs up to 17°C.

Date
Oct 21
Oct 22
Oct 23
Oct 24
Oct 25
Oct 26
Oct 27
Oct 28
Oct 29
Oct 30
Oct 31
Nov 1
Nov 2
Nov 3
Portsmouth October 21, 2026: Patchy rain possible
Portsmouth October 22, 2026: Sunny
Portsmouth October 23, 2026: Light rain shower
Portsmouth October 24, 2026: Overcast
Portsmouth October 25, 2026: Sunny
Portsmouth October 26, 2026: Overcast
Portsmouth October 27, 2026: Patchy rain possible
Portsmouth October 28, 2026: Sunny
Portsmouth October 29, 2026: Overcast
Portsmouth October 30, 2026: Sunny
Portsmouth October 31, 2026: Sunny
Portsmouth November 1, 2026: Sunny
Portsmouth November 2, 2026: Sunny
Portsmouth November 3, 2026: Overcast
Temperature (°C)
Chance of rain (%)
81
81
85
84
68
24
68
7
15
9
36
8
22
20
Precipitation
11.9 mm
24.5 mm
15.1 mm
18.7 mm
2.9 mm
0.1 mm
1.9 mm
—
—
—
0.3 mm
—
0.1 mm
—
Wind max (km/h)
48
55
72
57
51
39
43
20
17
15
25
29
26
29
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
October 21, 2026 Portsmouth October 21, 2026: Patchy rain possible Patchy rain possible 10 °C 14 °C 07:37 18:00 16:17 02:06 Waxing Moon (86 %)
October 22, 2026 Portsmouth October 22, 2026: Sunny Sunny 10 °C 15 °C 07:39 17:58 16:28 03:17 Waxing Moon (92 %)
October 23, 2026 Portsmouth October 23, 2026: Light rain shower Light rain shower 9 °C 15 °C 07:40 17:56 16:40 04:27 Full Moon (97 %)
October 24, 2026 Portsmouth October 24, 2026: Overcast Overcast 10 °C 16 °C 07:42 17:54 16:52 05:39 Full Moon (100 %)
October 25, 2026 Portsmouth October 25, 2026: Sunny Sunny 12 °C 17 °C 06:44 16:52 16:06 05:54 Full Moon (100 %)
October 26, 2026 Portsmouth October 26, 2026: Overcast Overcast 13 °C 17 °C 06:45 16:50 16:24 07:12 Full Moon (98 %)
October 27, 2026 Portsmouth October 27, 2026: Patchy rain possible Patchy rain possible 12 °C 17 °C 06:47 16:48 16:48 08:33 Waning Moon (94 %)
October 28, 2026 Portsmouth October 28, 2026: Sunny Sunny 11 °C 15 °C 06:49 16:46 17:22 09:54 Waning Moon (88 %)
October 29, 2026 Portsmouth October 29, 2026: Overcast Overcast 13 °C 15 °C 06:51 16:44 18:09 11:09 Waning Moon (80 %)
October 30, 2026 Portsmouth October 30, 2026: Sunny Sunny 14 °C 15 °C 06:52 16:43 19:14 12:11 Waning Moon (71 %)
October 31, 2026 Portsmouth October 31, 2026: Sunny Sunny 13 °C 16 °C 06:54 16:41 20:32 12:58 Last Quarter (61 %)
November 1, 2026 Portsmouth November 1, 2026: Sunny Sunny 9 °C 13 °C 06:56 16:39 21:58 13:31 Last Quarter (50 %)
November 2, 2026 Portsmouth November 2, 2026: Sunny Sunny 9 °C 13 °C 06:57 16:37 23:25 13:55 Last Quarter (40 %)
November 3, 2026 Portsmouth November 3, 2026: Overcast Overcast 9 °C 13 °C 06:59 16:35 Does not rise today 14:13 Waning Crescent (30 %)
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