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Grenoble in May: Weather, Average temperature and Climate
Discover the weather for Grenoble in May and if it’s a good time to travel (based on historical data).
Weather in Grenoble in May 2026
OK Weather
🌧️
RainyMay could be a good time to visit Grenoble, as the weather is generally fine. The average high temperature is around +21°C, and there are typically 3 sunny days in May. However, expect about 21 rainy days, and total monthly rainfall of approximately 137 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Average weather
☀️
+21°C
Avg. max. temperature
0°C
Min.
+34°C
Max.
137 mm
Total precipitation
75%
Avg. humidity
1 m/s
Avg. wind
3 ☀️
Sunny Days
7 ⛅️
Cloudy
21 🌦
Rainy
Our opinion: Grenoble has OK weather in May.
Average temperature in Grenoble in May
Here are the expected maximum, average and minimum temperatures in Grenoble for May based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in May is +20°C with a maximum of +27°C and a minimum of +6°C.
The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +15°C to +22°C.
Is Grenoble warm or cold in May?
Grenoble is typically mild in May.
Maximum temperatures go up compared to the previous month from +17°C to +21°C. The minimum temperature also goes up from +7°C to +11°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Grenoble:
Climate in Grenoble in May
Grenoble weather looks like this, on average, in May and the surrounding months.
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | +17°C | +21°C | +25°C | |||
| Min. temperature | -3°C | 0°C | +5°C | |||
| Max. temperature | +31°C | +34°C | +37°C | |||
| Rainfall | 116 mm | 137 mm | 113 mm | |||
| Wind | 1 m/s | 1 m/s | 1 m/s | |||
| Humidity | 72% | 75% | 73% | |||
| Air pressure | 1014 HPa | 1014 HPa | 1015 HPa | |||
☀️ | Sunny days | 4 | 3 | 4 | ||
☁️ | Cloudy days | 7 | 7 | 7 | ||
🌧️ | Rainy days | 18 | 21 | 18 | ||
❄️ | Snowy days | 0 | 0 | 0 | ||
| Our opinion | Good | OK | Good | |||
May typically has worse weather conditions compared to April. It’s getting warmer as May arrives. The average maximum temperature goes up from +17°C to +21°C during the day. Prepare for more rain. Average rainfall goes from 116 mm to 137 mm. Humidity rises from 72% to 75%. The average wind speed doesn’t change much during May, staying around 1 m/s. The days becoming less sunny, going from 4 sunny days in April to 3 in May.
But maybe it is worth considering traveling in June as the weather gets better.
Wind
Wind speed in Grenoble in May based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Grenoble is gradually increasing during May, going from 1 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during May in Grenoble based on historical data.
Last Year
Historical Data
Total precipitation in May is about 192 mm, with a 84% chance of rain on a typical day. The maximum amount of rainfall per day is around 21 mm, which is considered light rain. May is a pretty wet month with over 26 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
May is one of the rainiest months in Grenoble, here is a comparison with other months, total mm:
Grenoble wettest month is May, where a typical day has a 68% chance of precipitation and 137 mm of rainfall per day. February, on the other hand, is the driest month with a mere 39% chance of precipitation and 86 mm of rainfall per day.
How was the weather last May in Grenoble?
This is the weather in Grenoble in May 2025:
ma
ti
ke
to
pe
la
su
1
🌧️
+15°C
2
☁️
+19°C
3
☀️
+24°C
4
☀️
+25°C
5
☁️
+24°C
6
☁️
+25°C
7
🌧️
+19°C
8
☁️
+21°C
9
☁️
+22°C
10
🌧️
+15°C
11
🌧️
+15°C
12
🌧️
+15°C
13
🌧️
+16°C
14
🌧️
+16°C
15
🌧️
+16°C
16
🌧️
+14°C
17
☁️
+14°C
18
🌧️
+15°C
19
☁️
+16°C
20
☁️
+16°C
21
☁️
+20°C
22
☁️
+23°C
23
☁️
+22°C
24
☁️
+20°C
25
☁️
+22°C
26
☁️
+26°C
27
☀️
+27°C
28
🌧️
+26°C
29
☀️
+24°C
30
☁️
+25°C
31
🌧️
+22°C
In May 2025 Grenoble had 4 sunny days, 15 cloudy days, and 12 rainy days. The average maximum temperature was +20°C, with an absolute maximum of +27°C and a minimum of +14°C. The average humidity was 83%, with a maximum of 100% and a minimum of 43%. The average wind speed was 1 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in May?
Climate Change over Years
This is how Grenoble climate have been changing during last 43 years period.
The climate in Grenoble in May has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+15°C) and the highest in 2022 (+20°C). The driest year was 1989 with only 836 mm of rainfall, and the wettest year was 2023 with 2113 mm.
FAQ
Frequently asked questions about the weather in Grenoble in May:
Is May a good time to visit Grenoble?
It’s always a good time to visit Grenoble, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Grenoble in May?
May has mild temperatures in Grenoble. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Grenoble rainy in May?
Grenoble is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Grenoble in May?
Usually, it’s not very sunny in Grenoble in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in France
Check out the weather for other cities in France.
Monthly weather in Grenoble
Source of the data
For this page, we’ve looked at the typical weather in Grenoble, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.