Today's Summary
If you head out in Rennes today, you'll see a sunny sky. The thermometer currently shows 23.2°C. With wind from the south-west, it feels noticeably colder, around 17.8°C. UV levels are elevated today – remember sun protection if you're outdoors. During the day temperatures will range between 14.1°C and 24.1°C.
Hourly forecast – Rennes, today
Aug 28, 18:00
20 °C
Sunny
Aug 28, 19:00
18 °C
Partly cloudy
Aug 28, 20:00
17 °C
Patchy rain possible
Aug 28, 21:00
16 °C
Mist
Aug 28, 22:00
16 °C
Fog
Aug 28, 23:00
16 °C
Fog
Aug 29, 00:00
16 °C
Fog
Aug 29, 01:00
16 °C
Fog
Aug 29, 02:00
16 °C
Patchy rain possible
Aug 29, 03:00
15 °C
Overcast
Aug 29, 04:00
15 °C
Light rain shower
Aug 29, 05:00
16 °C
Light rain shower
Aug 29, 06:00
16 °C
Light rain shower
Aug 29, 07:00
18 °C
Patchy rain possible
Aug 29, 08:00
18 °C
Light rain shower
Aug 29, 09:00
18 °C
Light rain shower
Aug 29, 10:00
18 °C
Light rain shower
Aug 29, 11:00
20 °C
Patchy rain possible
Aug 29, 12:00
23 °C
Light rain shower
Aug 29, 13:00
24 °C
Sunny
Aug 29, 14:00
24 °C
Sunny
Aug 29, 15:00
24 °C
Patchy rain possible
Aug 29, 16:00
23 °C
Patchy rain possible
Aug 29, 17:00
22 °C
Patchy rain possible
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
Temperature (°C)
Chance of rain (%)
4
11
31
34
43
45
45
46
32
32
46
61
41
39
55
70
71
29
38
2
1
10
14
14
Precipitation
Wind (mph)
SSW
13
13
S
11
11
S
9
9
S
7
7
S
7
7
S
6
6
SSW
6
6
WSW
6
6
WSW
7
7
SW
7
7
SSW
8
8
S
10
10
SSW
13
13
SSW
15
15
SSW
17
17
SSW
18
18
SW
18
18
SW
19
19
SW
23
23
WSW
26
26
WSW
25
25
WSW
25
25
WSW
22
22
WSW
19
19
Pressure (hPa)
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
Humidity (%)
Cloud cover (%)
14-day weather forecast – Rennes
14-day trend for Rennes: 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 30.1°C.
Date
Aug 28
Aug 29
Aug 30
Aug 31
Sep 1
Sep 2
Sep 3
Sep 4
Sep 5
Sep 6
Sep 7
Sep 8
Sep 9
Sep 10
Temperature (°C)
Chance of rain (%)
61
76
29
17
11
14
13
11
7
8
52
81
8
6
Precipitation
Wind max (mph)
18
26
20
13
12
7
11
10
14
18
15
17
16
16
| Date | Weather | Min °C | Max °C | Sunrise | Sunset | Moonrise | Moonset | Moon phase |
|---|---|---|---|---|---|---|---|---|
| August 28, 2026 |
|
14 °C | 24 °C | 07:19 | 20:56 | 21:01 | 07:40 | Full Moon (98 %) |
| August 29, 2026 |
|
15 °C | 24 °C | 07:20 | 20:54 | 21:15 | 08:48 | Waning Moon (94 %) |
| August 30, 2026 |
|
15 °C | 24 °C | 07:22 | 20:52 | 21:29 | 09:56 | Waning Moon (87 %) |
| August 31, 2026 |
|
14 °C | 26 °C | 07:23 | 20:50 | 21:45 | 11:05 | Waning Moon (80 %) |
| September 1, 2026 |
|
12 °C | 25 °C | 07:24 | 20:48 | 22:03 | 12:17 | Waning Moon (70 %) |
| September 2, 2026 |
|
12 °C | 25 °C | 07:26 | 20:46 | 22:27 | 13:33 | Last Quarter (60 %) |
| September 3, 2026 |
|
14 °C | 28 °C | 07:27 | 20:44 | 22:58 | 14:49 | Last Quarter (50 %) |
| September 4, 2026 |
|
16 °C | 30 °C | 07:28 | 20:42 | 23:42 | 16:04 | Last Quarter (39 %) |
| September 5, 2026 |
|
16 °C | 30 °C | 07:30 | 20:40 | Does not rise today | 17:12 | Waning Crescent (29 %) |
| September 6, 2026 |
|
15 °C | 28 °C | 07:31 | 20:38 | 00:41 | 18:06 | Waning Crescent (20 %) |
| September 7, 2026 |
|
12 °C | 23 °C | 07:33 | 20:36 | 01:55 | 18:48 | Waning Crescent (12 %) |
| September 8, 2026 |
|
13 °C | 22 °C | 07:34 | 20:34 | 03:20 | 19:19 | Waning Crescent (6 %) |
| September 9, 2026 |
|
11 °C | 23 °C | 07:35 | 20:32 | 04:49 | 19:43 | New Moon (2 %) |
| September 10, 2026 |
|
9 °C | 21 °C | 07:37 | 20:30 | 06:17 | 20:03 | New Moon (0 %) |