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Weather Portsmouth: Current forecast

Portsmouth / United Kingdom

10 °C
Feels like 8.9 °C
Min 8 °C / Max 12 °C
Weather Portsmouth: Partly cloudy, 10 °C Partly cloudy
8.6 km/h SSW
Wind
15 km/h SSW
Gusts
1017 hPa
Pressure
0 mm
Precipitation
87 %
Humidity
0
UV index

Pollen (today)

Hazel Low
Alder High
Birch None
Oak None
Grass None
Mugwort None
Ragweed None
06:31 / 17:59
Sunrise / Sunset
00:20 / 08:11
Moonrise / Moonset
Waning Moon (72 %)
Moon phase

Updated: Mar 9, 2026, 19:48 CET Mar 9, 2026, 18:48 GMT

Today's Summary

Right now Portsmouth has partly cloudy weather. The thermometer currently shows 10°C. Don't forget a jacket or jumper. During the day temperatures will range between 8.3°C and 12.2°C.

Hourly forecast – Portsmouth, today

Mar 9, 18:00
10 °C
Partly cloudy
Portsmouth Mar 9, 18:00: Partly cloudy, 10 °C
Mar 9, 19:00
9 °C
Mist
Portsmouth Mar 9, 19:00: Mist, 9 °C
Mar 9, 20:00
9 °C
Mist
Portsmouth Mar 9, 20:00: Mist, 9 °C
Mar 9, 21:00
9 °C
Mist
Portsmouth Mar 9, 21:00: Mist, 9 °C
Mar 9, 22:00
9 °C
Mist
Portsmouth Mar 9, 22:00: Mist, 9 °C
Mar 9, 23:00
9 °C
Cloudy
Portsmouth Mar 9, 23:00: Cloudy, 9 °C
Mar 10, 00:00
9 °C
Cloudy
Portsmouth Mar 10, 00:00: Cloudy, 9 °C
Mar 10, 01:00
9 °C
Partly cloudy
Portsmouth Mar 10, 01:00: Partly cloudy, 9 °C
Mar 10, 02:00
8 °C
Partly cloudy
Portsmouth Mar 10, 02:00: Partly cloudy, 8 °C
Mar 10, 03:00
8 °C
Partly cloudy
Portsmouth Mar 10, 03:00: Partly cloudy, 8 °C
Mar 10, 04:00
8 °C
Partly cloudy
Portsmouth Mar 10, 04:00: Partly cloudy, 8 °C
Mar 10, 05:00
7 °C
Mist
Portsmouth Mar 10, 05:00: Mist, 7 °C
Mar 10, 06:00
7 °C
Cloudy
Portsmouth Mar 10, 06:00: Cloudy, 7 °C
Mar 10, 07:00
7 °C
Partly cloudy
Portsmouth Mar 10, 07:00: Partly cloudy, 7 °C
Mar 10, 08:00
8 °C
Cloudy
Portsmouth Mar 10, 08:00: Cloudy, 8 °C
Mar 10, 09:00
8 °C
Overcast
Portsmouth Mar 10, 09:00: Overcast, 8 °C
Mar 10, 10:00
9 °C
Cloudy
Portsmouth Mar 10, 10:00: Cloudy, 9 °C
Mar 10, 11:00
9 °C
Partly cloudy
Portsmouth Mar 10, 11:00: Partly cloudy, 9 °C
Mar 10, 12:00
10 °C
Cloudy
Portsmouth Mar 10, 12:00: Cloudy, 10 °C
Mar 10, 13:00
10 °C
Partly cloudy
Portsmouth Mar 10, 13:00: Partly cloudy, 10 °C
Mar 10, 14:00
10 °C
Partly cloudy
Portsmouth Mar 10, 14:00: Partly cloudy, 10 °C
Mar 10, 15:00
10 °C
Sunny
Portsmouth Mar 10, 15:00: Sunny, 10 °C
Mar 10, 16:00
10 °C
Sunny
Portsmouth Mar 10, 16:00: Sunny, 10 °C
Mar 10, 17:00
10 °C
Partly cloudy
Portsmouth Mar 10, 17:00: Partly cloudy, 10 °C
Time
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
Portsmouth Mar 9, 18:00: Partly cloudy
Portsmouth Mar 9, 19:00: Mist
Portsmouth Mar 9, 20:00: Mist
Portsmouth Mar 9, 21:00: Mist
Portsmouth Mar 9, 22:00: Mist
Portsmouth Mar 9, 23:00: Cloudy
Portsmouth Mar 10, 00:00: Cloudy
Portsmouth Mar 10, 01:00: Partly cloudy
Portsmouth Mar 10, 02:00: Partly cloudy
Portsmouth Mar 10, 03:00: Partly cloudy
Portsmouth Mar 10, 04:00: Partly cloudy
Portsmouth Mar 10, 05:00: Mist
Portsmouth Mar 10, 06:00: Cloudy
Portsmouth Mar 10, 07:00: Partly cloudy
Portsmouth Mar 10, 08:00: Cloudy
Portsmouth Mar 10, 09:00: Overcast
Portsmouth Mar 10, 10:00: Cloudy
Portsmouth Mar 10, 11:00: Partly cloudy
Portsmouth Mar 10, 12:00: Cloudy
Portsmouth Mar 10, 13:00: Partly cloudy
Portsmouth Mar 10, 14:00: Partly cloudy
Portsmouth Mar 10, 15:00: Sunny
Portsmouth Mar 10, 16:00: Sunny
Portsmouth Mar 10, 17:00: Partly cloudy
Temperature (°C)
Chance of rain (%)
0
0
0
0
72
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Precipitation
—
—
—
—
0 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind (km/h)
SSW
9
SW
9
WSW
9
WSW
8
WSW
7
SW
5
SW
8
SW
9
WSW
12
WSW
11
W
12
WNW
11
WNW
9
WNW
8
W
7
W
8
WSW
10
SW
14
SW
17
SW
20
SW
20
SW
22
SW
22
SW
21
Pressure (hPa)
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1017
1016
1017
1017
1017
1017
1017
1017
1016
1015
1015
1015
1014
Humidity (%)
87 %
94 %
95 %
95 %
94 %
93 %
90 %
90 %
90 %
91 %
93 %
94 %
93 %
90 %
87 %
83 %
78 %
74 %
71 %
70 %
72 %
75 %
78 %
84 %
Cloud cover (%)
75 %
51 %
73 %
84 %
76 %
63 %
87 %
58 %
45 %
62 %
56 %
69 %
64 %
49 %
80 %
100 %
74 %
45 %
85 %
43 %
39 %
17 %
18 %
40 %

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 2.5°C at night, with daytime highs up to 12.2°C.

Date
Mar 9
Mar 10
Mar 11
Mar 12
Mar 13
Mar 14
Mar 15
Mar 16
Mar 17
Mar 18
Mar 19
Mar 20
Mar 21
Mar 22
Portsmouth March 9, 2026: Partly cloudy
Portsmouth March 10, 2026: Patchy rain possible
Portsmouth March 11, 2026: Moderate rain
Portsmouth March 12, 2026: Patchy rain possible
Portsmouth March 13, 2026: Patchy rain possible
Portsmouth March 14, 2026: Patchy rain possible
Portsmouth March 15, 2026: Partly cloudy
Portsmouth March 16, 2026: Partly cloudy
Portsmouth March 17, 2026: Patchy rain possible
Portsmouth March 18, 2026: Partly cloudy
Portsmouth March 19, 2026: Patchy rain possible
Portsmouth March 20, 2026: Patchy rain possible
Portsmouth March 21, 2026: Patchy rain possible
Portsmouth March 22, 2026: Patchy rain possible
Temperature (°C)
Chance of rain (%)
0
61
87
89
88
88
0
0
83
0
89
87
88
76
Precipitation
0 mm
0.3 mm
5.1 mm
1.2 mm
4.9 mm
0.4 mm
0.1 mm
0 mm
1.3 mm
0.1 mm
4.3 mm
0.8 mm
0.3 mm
0.8 mm
Wind max (km/h)
11
36
43
60
63
25
37
26
35
24
45
40
48
30
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
March 9, 2026 Portsmouth March 9, 2026: Partly cloudy Partly cloudy 8 °C 12 °C 06:31 17:59 00:20 08:11 Waning Moon (72 %)
March 10, 2026 Portsmouth March 10, 2026: Patchy rain possible Patchy rain possible 7 °C 10 °C 06:29 18:01 01:32 08:40 Waning Moon (63 %)
March 11, 2026 Portsmouth March 11, 2026: Moderate rain Moderate rain 7 °C 11 °C 06:27 18:02 02:36 09:20 Last Quarter (54 %)
March 12, 2026 Portsmouth March 12, 2026: Patchy rain possible Patchy rain possible 8 °C 10 °C 06:25 18:04 03:31 10:12 Waning Crescent (44 %)
March 13, 2026 Portsmouth March 13, 2026: Patchy rain possible Patchy rain possible 4 °C 7 °C 06:23 18:06 04:14 11:17 Waning Crescent (35 %)
March 14, 2026 Portsmouth March 14, 2026: Patchy rain possible Patchy rain possible 4 °C 9 °C 06:20 18:07 04:45 12:29 Waning Crescent (26 %)
March 15, 2026 Portsmouth March 15, 2026: Partly cloudy Partly cloudy 4 °C 9 °C 06:18 18:09 05:09 13:48 Waning Crescent (18 %)
March 16, 2026 Portsmouth March 16, 2026: Partly cloudy Partly cloudy 5 °C 10 °C 06:16 18:11 05:27 15:07 Waning Crescent (11 %)
March 17, 2026 Portsmouth March 17, 2026: Patchy rain possible Patchy rain possible 5 °C 11 °C 06:14 18:12 05:42 16:27 Waning Crescent (5 %)
March 18, 2026 Portsmouth March 18, 2026: Partly cloudy Partly cloudy 3 °C 8 °C 06:12 18:14 05:55 17:49 Waning Crescent (1 %)
March 19, 2026 Portsmouth March 19, 2026: Patchy rain possible Patchy rain possible 4 °C 7 °C 06:09 18:15 06:08 19:12 New Moon (0 %)
March 20, 2026 Portsmouth March 20, 2026: Patchy rain possible Patchy rain possible 4 °C 9 °C 06:07 18:17 06:21 20:38 Waxing Crescent (1 %)
March 21, 2026 Portsmouth March 21, 2026: Patchy rain possible Patchy rain possible 3 °C 6 °C 06:05 18:19 06:37 22:07 Waxing Crescent (5 %)
March 22, 2026 Portsmouth March 22, 2026: Patchy rain possible Patchy rain possible 3 °C 7 °C 06:03 18:20 06:58 23:37 Waxing Crescent (11 %)
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