19.4 °C
Feels like 16.7 °C
Min 17 °C / Max 20 °C
Overcast
Today's Summary
Right now Portsmouth has overcast weather. The thermometer currently shows 19.4°C. Pack a light jacket for the evening. During the day temperatures will range between 16.7°C and 19.8°C.
Hourly forecast – Portsmouth, today
Sep 6, 15:00
20 °C
Patchy rain possible
Sep 6, 16:00
20 °C
Sunny
Sep 6, 17:00
20 °C
Patchy rain possible
Sep 6, 18:00
19 °C
Overcast
Sep 6, 19:00
20 °C
Overcast
Sep 6, 20:00
20 °C
Overcast
Sep 6, 21:00
20 °C
Overcast
Sep 6, 22:00
20 °C
Overcast
Sep 6, 23:00
20 °C
Overcast
Sep 7, 00:00
20 °C
Overcast
Sep 7, 01:00
19 °C
Overcast
Sep 7, 02:00
19 °C
Partly cloudy
Sep 7, 03:00
18 °C
Partly cloudy
Sep 7, 04:00
17 °C
Partly cloudy
Sep 7, 05:00
17 °C
Sunny
Sep 7, 06:00
18 °C
Sunny
Sep 7, 07:00
19 °C
Sunny
Sep 7, 08:00
20 °C
Sunny
Sep 7, 09:00
21 °C
Patchy rain possible
Sep 7, 10:00
21 °C
Patchy rain possible
Sep 7, 11:00
21 °C
Patchy rain possible
Sep 7, 12:00
20 °C
Overcast
Sep 7, 13:00
19 °C
Overcast
Sep 7, 14:00
19 °C
Overcast
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
Temperature (°C)
Chance of rain (%)
15
5
14
19
20
20
20
21
19
19
20
10
11
12
11
11
9
9
15
19
17
16
16
16
Precipitation
Wind (mph)
SE
9
9
SE
8
8
SE
6
6
ESE
6
6
ESE
7
7
SE
6
6
SE
4
4
S
1
1
WNW
4
4
WNW
6
6
WNW
8
8
W
13
13
WNW
11
11
WNW
11
11
W
11
11
W
13
13
W
13
13
W
13
13
W
13
13
WSW
16
16
WSW
18
18
WSW
21
21
WSW
23
23
WSW
23
23
Pressure (hPa)
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
Humidity (%)
Cloud cover (%)
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 10.6°C at night, with daytime highs up to 21.2°C.
Date
Sep 6
Sep 7
Sep 8
Sep 9
Sep 10
Sep 11
Sep 12
Sep 13
Sep 14
Sep 15
Sep 16
Sep 17
Sep 18
Sep 19
Temperature (°C)
Chance of rain (%)
17
18
78
17
53
9
69
58
57
11
10
10
9
10
Precipitation
Wind max (mph)
12
24
22
20
27
23
24
16
8
15
19
18
21
20
| Date | Weather | Min °C | Max °C | Sunrise | Sunset | Moonrise | Moonset | Moon phase |
|---|---|---|---|---|---|---|---|---|
| September 6, 2026 |
Overcast
|
17 °C | 20 °C | 06:26 | 19:39 | Does not rise today | 17:21 | Waning Crescent (20 %) |
| September 7, 2026 |
Overcast
|
17 °C | 21 °C | 06:27 | 19:37 | 00:36 | 17:59 | Waning Crescent (12 %) |
| September 8, 2026 |
Light rain shower
|
15 °C | 19 °C | 06:29 | 19:34 | 02:04 | 18:27 | Waning Crescent (6 %) |
| September 9, 2026 |
Sunny
|
13 °C | 19 °C | 06:30 | 19:32 | 03:37 | 18:47 | New Moon (2 %) |
| September 10, 2026 |
Overcast
|
15 °C | 20 °C | 06:32 | 19:30 | 05:09 | 19:03 | New Moon (0 %) |
| September 11, 2026 |
Sunny
|
15 °C | 18 °C | 06:33 | 19:28 | 06:38 | 19:18 | New Moon (0 %) |
| September 12, 2026 |
Sunny
|
13 °C | 18 °C | 06:35 | 19:25 | 08:06 | 19:32 | New Moon (3 %) |
| September 13, 2026 |
Patchy rain possible
|
16 °C | 20 °C | 06:36 | 19:23 | 09:32 | 19:48 | Waxing Crescent (8 %) |
| September 14, 2026 |
Sunny
|
18 °C | 19 °C | 06:38 | 19:21 | 10:57 | 20:06 | Waxing Crescent (14 %) |
| September 15, 2026 |
Sunny
|
16 °C | 21 °C | 06:39 | 19:19 | 12:20 | 20:29 | Waxing Crescent (23 %) |
| September 16, 2026 |
Sunny
|
15 °C | 20 °C | 06:41 | 19:16 | 13:39 | 21:00 | First Quarter (32 %) |
| September 17, 2026 |
Sunny
|
13 °C | 18 °C | 06:43 | 19:14 | 14:49 | 21:41 | First Quarter (42 %) |
| September 18, 2026 |
Sunny
|
11 °C | 18 °C | 06:44 | 19:12 | 15:47 | 22:34 | First Quarter (53 %) |
| September 19, 2026 |
Sunny
|
12 °C | 19 °C | 06:46 | 19:10 | 16:31 | 23:37 | First Quarter (63 %) |