January in Cassis: expect compromises
Hardest · 3/10Expect 11°C (52°F) in January. A good month for city streets, viewpoints and long meals; leave swimming for another season.
At just 15 mm for the month, rain will not shape your plans; you get almost no days with 6+ hours of sunshine and 9.1 hours of daylight.
That is 3/10 on the same scale — 10th of 12 months, versus 9.9/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.
If your dates are flexible, July is materially better in Cassis — 6.9 points higher on the same scale.
February in Cassis — the hardest end of the year
Hardest · 3.8/10Expect 12°C (53°F) in February. A good month for city streets, viewpoints and long meals; leave swimming for another season.
With around 28 mm of rain, any showers tend to pass through rather than settle in; about 5 days with 6+ hours of sunshine and 10.2 hours of daylight fill the rest.
That is 3.8/10 on the same scale — 9th of 12 months, versus 9.9/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.
If your dates are flexible, July is materially better in Cassis — 6.1 points higher on the same scale.
March in Cassis — the hardest end of the year
Hardest · 4.4/10March averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 57 mm, so plan one flexible day in three; you still get about 13 days with 6+ hours of sunshine and 11.6 hours of daylight.
It scores 4.4/10 here, 8th of 12 months, against 9.9/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Flexible dates? July scores 5.5 points higher here — enough to change the trip.
April in Cassis: mixed conditions, plan around the weather
Trade-offs · 6.3/10Temperatures hover around 14°C (57°F) — the kind of month where neither heat nor cold forces the schedule.
With around 18 mm of rain, any showers tend to pass through rather than settle in; about 24 days with 6+ hours of sunshine and 13.2 hours of daylight fill the rest.
That is 6.3/10 on the same scale — 6th of 12 months, versus 9.9/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening.
If your dates are flexible, July is materially better in Cassis — 3.6 points higher on the same scale.
May holds up well in Cassis — 5th best month
Good · 7.6/10May 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.
Figure on mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening.
Flexible dates? July scores 2.3 points higher here — enough to change the trip.
June in Cassis — one of the year's strongest windows (3rd)
Best window · 9.5/10With 22°C (72°F) on average, June delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 20 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 15.2 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Cassis at 9.5/10 (3rd of 12), just behind July at 9.9/10.
Budget for mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection.
July: the best month of the year in Cassis
Best window · 9.9/10With 25°C (77°F) on average, July delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
At just 12 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 14.9 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Cassis at 9.9/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
August ranks 2nd of 12 for Cassis — one of the best windows
Best window · 9.9/10August averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 15 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 13.8 daylight hours.
A 9.9/10 puts this among the year's best months in Cassis (2nd of 12); only July scores higher, at 9.9/10.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
September in Cassis — reliably good (4th best month)
Good · 8.3/10September averages 22°C (72°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 56 mm, so plan one flexible day in three; you still get about 18 days with 6+ hours of sunshine and 12.3 hours of daylight.
It scores 8.3/10 here, 4th of 12 months, against 9.9/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
Flexible dates? July scores 1.6 points higher here — enough to change the trip.
October in Cassis: mixed conditions, plan around the weather
Trade-offs · 5.6/10With 20°C (67°F) on average, October delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 45 mm of rain, any showers tend to pass through rather than settle in; about 6 days with 6+ hours of sunshine and 10.8 hours of daylight fill the rest.
That is 5.6/10 on the same scale — 7th of 12 months, versus 9.9/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection.
If your dates are flexible, July is materially better in Cassis — 4.3 points higher on the same scale.
November in Cassis — the hardest end of the year
Hardest · 3/10Temperatures hover around 15°C (60°F) — the kind of month where neither heat nor cold forces the schedule.
With around 39 mm of rain, any showers tend to pass through rather than settle in; almost no days with 6+ hours of sunshine and 9.5 hours of daylight fill the rest.
That is 3/10 on the same scale — 11th of 12 months, versus 9.9/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening.
If your dates are flexible, July is materially better in Cassis — 6.9 points higher on the same scale.
December in Cassis — off-season conditions
Hardest · 2.8/10December averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 40 mm of rain — occasional showers rather than washed-out days — alongside almost no days with 6+ hours of sunshine and 8.8 daylight hours.
It scores 2.8/10 here, 12th of 12 months, against 9.9/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening.
Flexible dates? July scores 7.1 points higher here — enough to change the trip.
