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Weather in Rennes for October 2026

Your guide to Rennes weather in October - trends and predictions

    Temperatures

  • Until now, October 2026 in Rennes has been nearly identical to the historical average, with a temperature of 18.4 °C (showing only a slight deviation of 0.3 °C).

  • Expect cooler weather in the next days in Rennes with the forecast suggesting a temperature of 15.8 °C, lower than the historical average.

  • In general, the average temperature in Rennes at the beginning of October is 20 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.4 °C by the end of October.

    • Rain 🌧️

  • The climate of Rennes in October is notably wet, with an average of 13 rainy days, and a total of 80.9 mm of precipitation.

    • More

  • Is October a good time to visit Rennes? check out the best time to travel to Rennes page.

  • ✨ Is October a good time to visit Rennes? – Ask the AI Weatherman

Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/10°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Rennes Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
21°
2
Light rain
21°
3
Light rain
19°
4
Patchy rain possible
19°
5
Patchy rain possible
20°
6
Patchy rain possible
21°
7
Light rain
20°
8
Sunny
20°
9
Patchy rain possible
20°
10
Patchy rain possible
20°
11
Overcast
20°
12
Sunny
20°
13
Patchy rain possible
19°
14
Patchy rain possible
18°
15
Overcast
19°
16
Light rain
19°
17
Patchy rain possible
18°
18
Light rain
18°
19
Light rain
19°
20
Moderate rain at times
18°
21
Light rain
15°
22
Light rain
17°
23
Light rain
16°
24
Light rain
17°
25
Light rain
16°
26
Patchy rain possible
16°
27
Patchy rain possible
16°
28
Sunny
15°
29
Overcast
15°
30
Sunny
17°
31
Sunny
16°

Temperatures trend during October in Rennes

See the weather trend as well as the moving average line

October weather in Rennes day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Patchy rain possible
Patchy rain possible
 21° /11° 2.2 mm 3.8
2 Oct. Light rain
Light rain
 21° /11° 5.1 mm 3.7
3 Oct. Light rain
Light rain
 19° /10° 3.2 mm 3.6
4 Oct. Patchy rain possible
Patchy rain possible
 19° /9° 1 mm 3.6
5 Oct. Patchy rain possible
Patchy rain possible
 20° /9° 1.9 mm 3.5
6 Oct. Patchy rain possible
Patchy rain possible
 21° /9° 1 mm 3.4
7 Oct. Light rain
Light rain
 20° /10° 2.6 mm 3.3
8 Oct. Sunny
Sunny
 20° /11° 0.6 mm 3.2
9 Oct. Patchy rain possible
Patchy rain possible
 20° /10° 1.9 mm 3.2
10 Oct. Patchy rain possible
Patchy rain possible
 20° /10° 1 mm 3.1
11 Oct. Overcast
Overcast
 20° /9° 0.1 mm 3
12 Oct. Sunny
Sunny
 20° /10° 0.8 mm 2.9
13 Oct. Patchy rain possible
Patchy rain possible
 19° /10° 1.4 mm 2.9
14 Oct. Patchy rain possible
Patchy rain possible
 18° /10° 2 mm 2.8
15 Oct. Overcast
Overcast
 19° /10° 0.8 mm 2.7
16 Oct. Light rain
Light rain
 19° /10° 3.9 mm 2.7
17 Oct. Patchy rain possible
Patchy rain possible
 18° /9° 1.2 mm 2.6
18 Oct. Light rain
Light rain
 18° /10° 2.7 mm 2.5
19 Oct. Light rain
Light rain
 19° /11° 3.2 mm 2.5
20 Oct. Moderate rain at times
Moderate rain at times
 18° /11° 5.2 mm 2.4
21 Oct. Light rain
Light rain
 15° /10° 6.5 mm 2.4
22 Oct. Light rain
Light rain
 17° /9° 3.4 mm 2.3
23 Oct. Light rain
Light rain
 16° /9° 6 mm 2.2
24 Oct. Light rain
Light rain
 17° /8° 2.6 mm 2.2
25 Oct. Light rain
Light rain
 16° /9° 3.2 mm 2.1
26 Oct. Patchy rain possible
Patchy rain possible
 16° /9° 2 mm 2.1
27 Oct. Patchy rain possible
Patchy rain possible
 16° /10° 1 mm 2
28 Oct. Sunny
Sunny
 15° /7° 0 mm 2
29 Oct. Overcast
Overcast
 15° /7° 0 mm 1.7
30 Oct. Sunny
Sunny
 17° /5° 0 mm 2
31 Oct. Sunny
Sunny
 16° /5° 0 mm 2
Next
Important Notice
Our weather forecast for Rennes in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Rennes forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Rennes weather in October vs September vs November

Compare October weather in Rennes with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
SeptemberOctoberNovember
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures23°/12°18°/10°13°/6°
Rainfall57 mm81 mm70 mm
Snowfall0 cm0 cm2 cm
Wind20.6 km/h22 km/h23.2 km/h
Humidity70%76%82%
Rainy days11 days13 days12 days
Snow days0 days0 days0 days
Dry days19 days18 days18 days

Planning a trip to Rennes? Discover the best time to visit

Rennes in October - FAQ

What are the expected maximum and minimum temperatures in Rennes during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Rennes during October?
Moderate rainfall is anticipated in Rennes during October, with a total of 80.9 mm spread over approximately 13 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Rennes during October?
The average wind speed in Rennes during October is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Rennes

Explore the daily rainfall trends and prepare for Renness October weather 💧
Typically, Rennes has 13 rainy days in October with a total of 80.9 mm of rainfall.

UV exposure in Rennes during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

What to pack to Rennes in October?

🌦️ Mild & changeable · highs around 18 °C, frequent showers

As you prepare for your trip to Rennes in October, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Rennes, during October, is comfortable and enjoyable, regardless of the weather conditions.

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🧥 Clothing

👟 Footwear

🎒 Accessories

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Location coordinates Where is Rennes?

Get accurate weather forecasts for Rennes, located at latitude 48.112 and longitude -1.674. Stay updated with localized weather information tailored for Rennes.

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