Weather in Ille-et-Vilaine for May 2026
In general, the average temperature in Ille-et-Vilaine at the beginning of May is 16.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.7 °C by the end of May.
Ille-et-Vilaine experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 71.7 mm.
Is May a good time to visit Ille-et-Vilaine? check out the best time to travel to Ille-et-Vilaine page.
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Ille-et-Vilaine Weather May
Temperatures trend during May in Ille-et-Vilaine
May weather in Ille-et-Vilaine day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Moderate rain at times | 17° /7° | 2.7 mm | 4 | |
| 2 May |  Light rain shower | 17° /7° | 1 mm | 4 | |
| 3 May | Light rain shower | 18° /7° | 1.5 mm | 4 | |
| 4 May | Patchy rain possible | 16° /6° | 1.2 mm | 4 | |
| 5 May | Patchy rain possible | 15° /7° | 2.3 mm | 3 | |
| 6 May | Moderate rain at times | 16° /6° | 4.4 mm | 4 | |
| 7 May | Patchy rain possible | 17° /7° | 0.5 mm | 4 | |
| 8 May | Patchy rain possible | 18° /7° | 1 mm | 4 | |
| 9 May | Patchy rain possible | 19° /8° | 3.9 mm | 4 | |
| 10 May | Patchy rain possible | 19° /8° | 3.7 mm | 5 | |
| 11 May | Patchy rain possible | 18° /8° | 2.1 mm | 4 | |
| 12 May | Light rain shower | 16° /7° | 5.2 mm | 4 | |
| 13 May | Moderate or heavy rain shower | 17° /7° | 4.2 mm | 4 | |
| 14 May | Patchy rain possible | 19° /8° | 1.7 mm | 5 | |
| 15 May | Moderate or heavy rain shower | 18° /9° | 3.8 mm | 4 | |
| 16 May | Patchy rain possible | 17° /7° | 1.9 mm | 4 | |
| 17 May | Moderate or heavy rain shower | 19° /7° | 2.7 mm | 5 | |
| 18 May | Moderate or heavy rain shower | 20° /8° | 1.4 mm | 5 | |
| 19 May | Moderate rain at times | 19° /8° | 1.7 mm | 4 | |
| 20 May |  Cloudy | 19° /8° | 2.9 mm | 4 | |
| 21 May | Light rain shower | 19° /9° | 2.7 mm | 4 | |
| 22 May | Moderate rain at times | 19° /9° | 1.9 mm | 4 | |
| 23 May | Light rain shower | 18° /7° | 4.6 mm | 4 | |
| 24 May | Patchy rain possible | 17° /7° | 3.1 mm | 4 | |
| 25 May |  Overcast | 19° /7° | 0.6 mm | 4 | |
| 26 May | Patchy rain possible | 19° /8° | 1.1 mm | 4 | |
| 27 May | Patchy rain possible | 20° /9° | 0.6 mm | 4 | |
| 28 May |  Light drizzle | 21° /10° | 0.4 mm | 5 | |
| 29 May |  Partly cloudy | 22° /10° | 1.3 mm | 5 | |
| 30 May | Overcast | 22° /9° | 0.3 mm | 5 | |
| 31 May | Cloudy | 22° /10° | 0.3 mm | 5 | |
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Ille-et-Vilaine in May - FAQ
What to pack to Ille-et-Vilaine in May?
As you prepare for your trip to Ille-et-Vilaine in May, 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 Ille-et-Vilaine, during May, 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
- 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
May rainfall patterns in Ille-et-Vilaine
UV exposure in Ille-et-Vilaine during May
Quick links
Where is Ille-et-Vilaine?Get accurate weather forecasts for Ille-et-Vilaine, located at latitude 48.112 and longitude -1.674. Stay updated with localized weather information tailored for Ille-et-Vilaine.