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Weather Portsmouth: Current forecast

Portsmouth / United Kingdom

22.1 °C
Feels like 24.6 °C
Min 17 °C / Max 22 °C
Weather Portsmouth: Sunny, 22 °C Sunny
13 km/h S
Wind
14.9 km/h S
Gusts
1024 hPa
Pressure
0 mm
Precipitation
65 %
Humidity
3.8
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass High
Mugwort High
Ragweed None
05:18 / 21:03
Sunrise / Sunset
16:56 / Does not set today
Moonrise / Moonset
Waxing Moon (74 %)
Moon phase

Updated: Jul 23, 2026, 11:26 CEST Jul 23, 2026, 10:26 BST

Today's Summary

If you head out in Portsmouth today, you'll see a sunny sky. The thermometer currently shows 22.1°C. Light clothing is enough – and remember sun protection if it's sunny. During the day temperatures will range between 17°C and 22.3°C.

Hourly forecast – Portsmouth, today

Jul 23, 10:00
22 °C
Partly cloudy
Portsmouth Jul 23, 10:00: Partly cloudy, 22 °C
Jul 23, 11:00
21 °C
Sunny
Portsmouth Jul 23, 11:00: Sunny, 21 °C
Jul 23, 12:00
21 °C
Partly cloudy
Portsmouth Jul 23, 12:00: Partly cloudy, 21 °C
Jul 23, 13:00
22 °C
Partly cloudy
Portsmouth Jul 23, 13:00: Partly cloudy, 22 °C
Jul 23, 14:00
22 °C
Partly cloudy
Portsmouth Jul 23, 14:00: Partly cloudy, 22 °C
Jul 23, 15:00
22 °C
Sunny
Portsmouth Jul 23, 15:00: Sunny, 22 °C
Jul 23, 16:00
22 °C
Sunny
Portsmouth Jul 23, 16:00: Sunny, 22 °C
Jul 23, 17:00
22 °C
Sunny
Portsmouth Jul 23, 17:00: Sunny, 22 °C
Jul 23, 18:00
21 °C
Sunny
Portsmouth Jul 23, 18:00: Sunny, 21 °C
Jul 23, 19:00
19 °C
Sunny
Portsmouth Jul 23, 19:00: Sunny, 19 °C
Jul 23, 20:00
18 °C
Clear
Portsmouth Jul 23, 20:00: Clear, 18 °C
Jul 23, 21:00
18 °C
Partly cloudy
Portsmouth Jul 23, 21:00: Partly cloudy, 18 °C
Jul 23, 22:00
18 °C
Partly cloudy
Portsmouth Jul 23, 22:00: Partly cloudy, 18 °C
Jul 23, 23:00
18 °C
Clear
Portsmouth Jul 23, 23:00: Clear, 18 °C
Jul 24, 00:00
18 °C
Clear
Portsmouth Jul 24, 00:00: Clear, 18 °C
Jul 24, 01:00
18 °C
Clear
Portsmouth Jul 24, 01:00: Clear, 18 °C
Jul 24, 02:00
18 °C
Clear
Portsmouth Jul 24, 02:00: Clear, 18 °C
Jul 24, 03:00
17 °C
Clear
Portsmouth Jul 24, 03:00: Clear, 17 °C
Jul 24, 04:00
17 °C
Sunny
Portsmouth Jul 24, 04:00: Sunny, 17 °C
Jul 24, 05:00
19 °C
Sunny
Portsmouth Jul 24, 05:00: Sunny, 19 °C
Jul 24, 06:00
20 °C
Sunny
Portsmouth Jul 24, 06:00: Sunny, 20 °C
Jul 24, 07:00
21 °C
Sunny
Portsmouth Jul 24, 07:00: Sunny, 21 °C
Jul 24, 08:00
22 °C
Sunny
Portsmouth Jul 24, 08:00: Sunny, 22 °C
Jul 24, 09:00
23 °C
Sunny
Portsmouth Jul 24, 09:00: Sunny, 23 °C
Time
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
Portsmouth Jul 23, 10:00: Partly cloudy
Portsmouth Jul 23, 11:00: Sunny
Portsmouth Jul 23, 12:00: Partly cloudy
Portsmouth Jul 23, 13:00: Partly cloudy
Portsmouth Jul 23, 14:00: Partly cloudy
Portsmouth Jul 23, 15:00: Sunny
Portsmouth Jul 23, 16:00: Sunny
Portsmouth Jul 23, 17:00: Sunny
Portsmouth Jul 23, 18:00: Sunny
Portsmouth Jul 23, 19:00: Sunny
Portsmouth Jul 23, 20:00: Clear
Portsmouth Jul 23, 21:00: Partly cloudy
Portsmouth Jul 23, 22:00: Partly cloudy
Portsmouth Jul 23, 23:00: Clear
Portsmouth Jul 24, 00:00: Clear
Portsmouth Jul 24, 01:00: Clear
Portsmouth Jul 24, 02:00: Clear
Portsmouth Jul 24, 03:00: Clear
Portsmouth Jul 24, 04:00: Sunny
Portsmouth Jul 24, 05:00: Sunny
Portsmouth Jul 24, 06:00: Sunny
Portsmouth Jul 24, 07:00: Sunny
Portsmouth Jul 24, 08:00: Sunny
Portsmouth Jul 24, 09:00: Sunny
Temperature (°C)
Chance of rain (%)
5
5
6
7
5
4
4
4
5
7
9
9
9
9
9
9
9
10
9
7
5
4
3
3
Precipitation
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind (km/h)
S
15
S
17
S
18
S
19
S
18
SSW
17
SSW
17
SW
14
SW
13
SW
11
SSW
9
SSW
9
SSW
10
SSW
10
SW
11
SW
10
SW
10
SW
10
WSW
9
WSW
8
WSW
10
W
10
WSW
10
SW
11
Pressure (hPa)
1024
1024
1024
1023
1023
1022
1022
1022
1021
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
Humidity (%)
61 %
62 %
62 %
61 %
59 %
59 %
59 %
61 %
64 %
72 %
75 %
75 %
75 %
76 %
76 %
76 %
77 %
77 %
76 %
70 %
64 %
60 %
55 %
53 %
Cloud cover (%)
25 %
15 %
28 %
47 %
25 %
19 %
17 %
16 %
14 %
16 %
23 %
27 %
26 %
24 %
20 %
19 %
18 %
19 %
19 %
19 %
19 %
18 %
14 %
11 %

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 13.2°C at night, with daytime highs up to 28.8°C.

Date
Jul 23
Jul 24
Jul 25
Jul 26
Jul 27
Jul 28
Jul 29
Jul 30
Jul 31
Aug 1
Aug 2
Aug 3
Aug 4
Aug 5
Portsmouth July 23, 2026: Sunny
Portsmouth July 24, 2026: Sunny
Portsmouth July 25, 2026: Sunny
Portsmouth July 26, 2026: Patchy rain possible
Portsmouth July 27, 2026: Sunny
Portsmouth July 28, 2026: Sunny
Portsmouth July 29, 2026: Sunny
Portsmouth July 30, 2026: Sunny
Portsmouth July 31, 2026: Sunny
Portsmouth August 1, 2026: Partly cloudy
Portsmouth August 2, 2026: Sunny
Portsmouth August 3, 2026: Sunny
Portsmouth August 4, 2026: Sunny
Portsmouth August 5, 2026: Partly cloudy
Temperature (°C)
Chance of rain (%)
7
4
4
51
5
3
2
3
3
49
6
82
36
9
Precipitation
—
—
—
0.7 mm
—
—
—
—
—
0.9 mm
0 mm
18.8 mm
0.6 mm
0 mm
Wind max (km/h)
19
21
29
27
26
16
21
26
18
37
34
47
29
9
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
July 23, 2026 Portsmouth July 23, 2026: Sunny Sunny 17 °C 22 °C 05:18 21:03 16:56 Does not set today Waxing Moon (74 %)
July 24, 2026 Portsmouth July 24, 2026: Sunny Sunny 17 °C 25 °C 05:19 21:01 18:06 00:26 Waxing Moon (82 %)
July 25, 2026 Portsmouth July 25, 2026: Sunny Sunny 15 °C 25 °C 05:21 21:00 19:06 01:03 Waxing Moon (90 %)
July 26, 2026 Portsmouth July 26, 2026: Patchy rain possible Patchy rain possible 18 °C 22 °C 05:22 20:59 19:54 01:51 Waxing Moon (95 %)
July 27, 2026 Portsmouth July 27, 2026: Sunny Sunny 15 °C 23 °C 05:23 20:57 20:29 02:51 Full Moon (99 %)
July 28, 2026 Portsmouth July 28, 2026: Sunny Sunny 16 °C 24 °C 05:25 20:56 20:54 03:59 Full Moon (100 %)
July 29, 2026 Portsmouth July 29, 2026: Sunny Sunny 18 °C 29 °C 05:26 20:54 21:14 05:11 Full Moon (99 %)
July 30, 2026 Portsmouth July 30, 2026: Sunny Sunny 18 °C 26 °C 05:28 20:53 21:29 06:23 Waning Moon (96 %)
July 31, 2026 Portsmouth July 31, 2026: Sunny Sunny 16 °C 25 °C 05:29 20:51 21:41 07:34 Waning Moon (91 %)
August 1, 2026 Portsmouth August 1, 2026: Partly cloudy Partly cloudy 17 °C 21 °C 05:31 20:50 21:52 08:44 Waning Moon (83 %)
August 2, 2026 Portsmouth August 2, 2026: Sunny Sunny 16 °C 21 °C 05:32 20:48 22:03 09:54 Waning Moon (75 %)
August 3, 2026 Portsmouth August 3, 2026: Sunny Sunny 14 °C 19 °C 05:33 20:47 22:15 11:05 Last Quarter (65 %)
August 4, 2026 Portsmouth August 4, 2026: Sunny Sunny 13 °C 20 °C 05:35 20:45 22:28 12:18 Last Quarter (55 %)
August 5, 2026 Portsmouth August 5, 2026: Partly cloudy Partly cloudy 16 °C 22 °C 05:36 20:43 22:45 13:35 Last Quarter (44 %)
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