Grilly Weather in May

May in Grilly brings pleasant temperatures, with daytime highs of 19°C (66°F) and nights around 8°C (46°F). Quite a bit of rainfall is expected, around 152 mm (6 in), so pack an umbrella.

Rainfall in Grilly in May

You can typically expect 17 days of rain this month, averaging around 152 mm (6 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Grilly in May

May in Grilly sees highs of 19°C (66°F) and lows of 8°C (46°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Grilly in May

Expect sunny days throughout the month, with an estimated 211 hours of sunshine. This makes it a pleasant time to visit Grilly.

Average water temperature in May

The water is 13°C (55°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

For Grilly itself, June, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit France, check out our Grilly's climate page.

Grilly Temperature in May

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 55%  

Precipitation 152 mm (6 in)  

Rainy days 17 days  

Humidity 69% *  

Sunshine 211 hours *  

Percentage Sunshine 50% *  

* Data from: Geneva, Switzerland (13 KM, 8 Miles).

What to Wear in Grilly in May

For Grilly in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 13°C (55°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Grilly in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Camping

3/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Grilly's climate page.

More climate data for Grilly

Temperature Rainfall Sunshine Humidity Water Temp

See the full Grilly climate overview or explore weather in France.