Rennes - Saint-Jacques

Ille-et-Vilaine, Bretagne, France

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

16°

Drizzle

Feels Like: 15°

Min: 16°

Max: 19°

The next few hours will be light rain, with today reaching 19°C and dropping to 17°C. The coming days will be mostly cloudy

Does this forecast seem accurate?

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

17° 16° 16° 16° 16° 16° 16° 16° 16° 16° 16° 17° 17° 18° 19° 19° 18° 18° 18° 18° 18° 18° 18° 18°
84%
84%
96%
96%
96%
100%
100%
100%
98%
98%
98%
90%
90%
90%
70%
30%
20%
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
Today
Tomorrow

Daylight Hours

08:10

Sunrise

19:43

Sunset

11 hours 33 minutes of sunlight today

Moon

Waning Gibbous

20:13

Moonrise

10:13

Moonset

Daily Forecast

Monday

16°
19°

Tuesday

17°
26°

Wednesday

16°
22°

Thursday

12°
21°

Friday

11°
20°

Saturday

15°
22°

Sunday

15°
20°

Monday

12°
19°

Tuesday

11°
19°

Wednesday

9°
22°

Air Quality Data Available

Upgrade to access real-time air quality data for Rennes - Saint-Jacques.

UV Index

No protection needed
0 Low
Low Extreme

Humidity

88% Humid
Low High

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Rennes - Saint-Jacques.

View stargazing score

Weather in Rennes - Saint-Jacques today, September 28, 2026

Expect unsettled, showery conditions in Rennes - Saint-Jacques on September 28, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. The morning carries the wetter risk, with rain chances near 100% and the highest odds around 06:00. Cloud is also thick early on, peaking near 100% around 01:00.

The day peaks near 19°C and cools toward 16°C. The air stays humid, with relative humidity between 86% and 96% and the peak around 08:00. A lighter breeze peaks around 18:00 near 2.9 km/h.

Expect the wet theme to continue later, as rain odds reach 90% near 12:00. Cloud amounts hold near 100% around 12:00. Visibility holds near 15.3 km, though it can fall to 1.4 km. Sunrise is at 08:10 and sunset at 19:43, giving 11 hours 33 minutes of sunlight today.

In short, treat September 28, 2026 in Rennes - Saint-Jacques as a damp day: pack covers, watch the wetter hours, and expect a high near 19°C.

Frequently asked questions about weather in Rennes - Saint-Jacques

How warm does it get in Rennes - Saint-Jacques?

The warmest month in Rennes - Saint-Jacques is July, with average high temperatures of 24°C. The average temperature during this period is around 19°C.

How cold does it get in Rennes - Saint-Jacques?

The coldest month in Rennes - Saint-Jacques is January, with average low temperatures of 3°C. The average temperature during this period is around 6°C.

What is the wettest time of year in Rennes - Saint-Jacques?

The wettest month in Rennes - Saint-Jacques is October, with an average of 80mm of precipitation.

What is the driest time of year in Rennes - Saint-Jacques?

The driest month in Rennes - Saint-Jacques is August, with an average of 42mm of precipitation.

View full climate insights for Rennes - Saint-Jacques →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)