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Weather in Finistère for September 2025

Your guide to Finistère weather in September - trends and predictions
  • In general, the average temperature in Finistère at the beginning of September is 22 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.1 °C by the end of September.

  • Expect significant rainfall in Finistère during September, with an average of 17 rainy days.

  • Is September a good time to visit Finistère? check out the best time to travel to Finistère page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
13
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/14°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Finistère in September average weather

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Temperatures trend during September in Finistère

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
20° /14° 6.4 mm 5
2 Sept. Cloudy
Cloudy
19° /12° 0.9 mm 5
3 Sept. Sunny
Sunny
22° /13° 0.2 mm 6
4 Sept. Sunny
Sunny
24° /16° 0.4 mm 6
5 Sept. Patchy rain possible
Patchy rain possible
22° /14° 1.2 mm 5
6 Sept. Partly cloudy
Partly cloudy
24° /13° 0.4 mm 6
7 Sept. Partly cloudy
Partly cloudy
23° /15° 14.2 mm 6
8 Sept. Patchy rain possible
Patchy rain possible
22° /16° 15.4 mm 5
9 Sept. Patchy rain possible
Patchy rain possible
21° /14° 1.4 mm 5
10 Sept. Patchy rain possible
Patchy rain possible
20° /14° 1.4 mm 5
11 Sept. Cloudy
Cloudy
19° /12° 0.7 mm 4
12 Sept. Mist
Mist
17° /12° 0.6 mm 4
13 Sept. Mist
Mist
18° /11° 0 mm 5
14 Sept. Sunny
Sunny
19° /9° 0 mm 6
15 Sept. Partly cloudy
Partly cloudy
21° /10° 0 mm 6
16 Sept. Light rain shower
Light rain shower
21° /13° 1.3 mm 5
17 Sept. Light rain shower
Light rain shower
20° /13° 4.1 mm 5
18 Sept. Patchy rain possible
Patchy rain possible
19° /14° 0.8 mm 5
19 Sept. Patchy rain possible
Patchy rain possible
20° /15° 0.2 mm 5
20 Sept. Light rain shower
Light rain shower
19° /14° 17.5 mm 5
21 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
18° /12° 6.2 mm 5
22 Sept. Light rain shower
Light rain shower
18° /11° 1.6 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
15° /11° 8.5 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
18° /14° 0.6 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
18° /13° 3.7 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
17° /13° 5.4 mm 4
27 Sept. Patchy light drizzle
Patchy light drizzle
16° /12° 3.5 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
17° /10° 0.3 mm 4
29 Sept. Sunny
Sunny
17° /10° 2 mm 5
30 Sept. Sunny
Sunny
17° /10° 0.4 mm 5
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Important Notice
Our weather forecast for Finistère in September 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 Finistère forecast closer to your planned date for the most up-to-date weather information.

Finistère in September - FAQ

What are the expected maximum and minimum temperatures in Finistère during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Finistère during September?
Moderate rainfall is anticipated in Finistère during September, with a total of 87.8 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Finistère during September?
The average wind speed in Finistère during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Finistère in September?

As you prepare for your trip to Finistère in September, 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 Finistère, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

September rainfall patterns in Finistère

Explore the daily rainfall trends and prepare for Finistères September weather 💧

UV exposure in Finistère during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Finistère?

Get accurate weather forecasts for Finistère, located at latitude 48.39 and longitude -4.486. Stay updated with localized weather information tailored for Finistère.

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