May · France
Best time to visit Cassis in May Weather, crowds & prices
Weather in Cassis in May
Average temperature 18°C, 34 mm of rain, about 30 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
7.6/10
Ranked #5 of 12 months
- Avg temp
- 18°C
- Rainfall
- 34 mm
- Humidity
- 78%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Cassis scores 7.6/10 for beach and coastal travel - an above-average month (#5 of 12). Expect around 18°C, 34 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Cassis is a Provençal fishing port east of Marseille, gateway to the limestone calanques along the coast.
May holds up well in Cassis — 5th best month
May averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 34 mm of rain — occasional showers rather than washed-out days — alongside about 30 days with 6+ hours of sunshine and 14.5 daylight hours.
It scores 7.6/10 here, 5th of 12 months, against 9.9/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening.
Figure on mid-season pricing, with crowds are moderate.
Flexible dates? July scores 2.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Cassis in May?
- In May, Cassis averages 18°C, 34 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is May a good time to visit Cassis?
- May earns a 7.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cassis in May?
- Expect about 34 mm of rain in May. Average humidity is 78% and there are about 30 days with 6+ hours of sunshine.
Curated in Cassis
Tickets & experiences
Things to do in Cassis
Cassis, France. Live activities and tours from GetYourGuide, matched to this destination.