AI-generatedCassis at a glance
- Best time
- Jul – Aug
- Warmest month
- Aug · 27°
- Warmest sea
- Aug · 23.2°
- Sunshine a year
- 2,890 h
- Rain a year
- 614 mm
- Climate
- Mediterranean
- Time zone
- UTC+1 / UTC+2
- Elevation
- 17 m
Climate in Cassis
Cassis has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 27 °C, while January is the coolest at 11 °C. With around 2,890 hours of sunshine a year, Cassis is sunny; July is the sunniest month with 12.0 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: July – August
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 15°
- Midday, 13:00: about 19°
- Afternoon, 16:00: about 20°
- Evening, 20:00: about 18°
- Night, 23:00: about 17°
07:5018:57
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:32–08:29 · evening 18:18–19:15
- Blue hour
- Morning 07:21–07:32 · evening 19:15–19:26
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Cassis in October?
In October, Cassis is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. The sea averages 19.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 78 mm. All in all, October is a so-so month for a holiday in Cassis.
More details for October
- Daylight
- 11 h 7 min07:50 – 18:57
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 52 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %13 %
- Seaweight 25 %37 %
- Sunshineweight 20 %55 %
- Few rainy daysweight 20 %74 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
Sea temperature in Cassis
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 18.3 – 20.7 °C
Swimming season: Jun – Sep
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Cassis ranges from 13.3 °C in February to 23.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to September.
From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 21.9 and 25.3 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 13.9° | 13.2° | 14.6° | cold |
| FebruaryFeb | 13.3° | 12.9° | 13.8° | cold |
| MarchMar | 13.5° | 12.9° | 14.2° | cold |
| AprilApr | 14.5° | 13.7° | 15.2° | cold |
| MayMay | 16.8° | 15.7° | 17.8° | cold |
| JuneJun | 20.3° | 18.6° | 21.9° | refreshing |
| JulyJul | 22.0° | 20.4° | 24.2° | refreshing |
| AugustAug | 23.2° | 21.9° | 25.3° | pleasant |
| SeptemberSep | 21.7° | 19.7° | 23.2° | refreshing |
| OctoberOct | 19.6° | 18.3° | 20.7° | fresh |
| NovemberNov | 17.3° | 16.3° | 18.4° | fresh |
| DecemberDec | 15.2° | 14.0° | 16.1° | cold |
Sunshine hours in Cassis
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.3 of 11.1 hours of daylight in Cassis, 57 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Cassis
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 9).
Minutes until sunburn in October
- Very fair skin
- about 40 min
- Fair skin
- about 50 min
- Light brown skin
- about 70 min
- Olive skin
- about 90 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Cassis: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Cassis has about 8 rainy days with 78 mm of rain in total.
Wind and clouds in Cassis
How breezy and how cloudy Cassis is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Cassis typically peaks at 20 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Jan – Jul, Oct – Nov.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 52 % of the sky over Cassis: variable cloud, with about 6.3 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Cassis
How often the day gets hot in Cassis (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Cassis has about 0 hot days, with an average daytime high of 20 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Cassis
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (10+ muggy days)
PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open. Muggy on about 1 days (dew point 18 °C or more).
The coolest nights are in February (7°), the warmest in August (21°). Tropical nights of 20 °C and more are the rule from July to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in June and from September to October. Nights fall below 8 °C on average from January to February, so the room should be heated. It is muggy (dew point 18 °C or more) on about 37 days a year, mostly from July to August.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 22 | 11° | 7° | 13.9° | 4.8 h | 7 | 51 |
| FebruaryFeb | 28 | 12° | 7° | 13.3° | 6.1 h | 6 | 41 |
| MarchMar | 32 | 14° | 8° | 13.5° | 7.5 h | 6 | 45 |
| AprilApr | 32 | 17° | 11° | 14.5° | 8.3 h | 8 | 58 |
| MayMay | 41 | 20° | 14° | 16.8° | 9.6 h | 7 | 57 |
| JuneJun | 80 | 24° | 18° | 20.3° | 11.2 h | 5 | 31 |
| JulyJul | 93 | 26° | 20° | 22.0° | 12.0 h | 2 | 15 |
| AugustAug | 97 | 27° | 21° | 23.2° | 10.8 h | 3 | 25 |
| SeptemberSep | 79 | 23° | 18° | 21.7° | 8.8 h | 6 | 68 |
| OctoberOct | 40 | 20° | 15° | 19.6° | 6.3 h | 8 | 78 |
| NovemberNov | 20 | 15° | 11° | 17.3° | 5.0 h | 10 | 90 |
| DecemberDec | 20 | 12° | 8° | 15.2° | 4.5 h | 7 | 57 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
43.22° N, 5.54° E · 17 m · Europe/Paris
Best time to visit Cassis
The best time to visit Cassis is from July to August. For a beach holiday with the sea above 21 °C, go from July to September. For sightseeing, day trips and hiking, conditions are most comfortable from April to November. The wettest month is November with 90 mm of precipitation.
Cassis through the seasons
How the weather changes over the seasons, with averages for each.
Cassis in spring
Mar – May
Poor
- 14–20 °C by day
- Sea 15 °C
- 9 h of sun a day
- 21 rainy days in all
Cassis in summer
Jun – Aug
Excellent
- 24–27 °C by day
- Sea 22 °C
- 11 h of sun a day
- 11 rainy days in all
Cassis in autumn
Sep – Nov
Fair
- 15–23 °C by day
- Sea 20 °C
- 7 h of sun a day
- 24 rainy days in all
Cassis in winter
Dec – Feb
Poor
- 11–12 °C by day
- Sea 14 °C
- 5 h of sun a day
- 20 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Cassis for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Cassis
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Cassis: score 97 against 40. In August, days are 7 °C warmer than in October. The sea is 4 °C warmer in August. August has 5 fewer rainy days. The sun shines 5 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 40 | 97better |
| Day high | 20° | 27° |
| Night low | 15° | 21° |
| Sea | 19.6° | 23.2° |
| Sunshine | 6.3 h | 10.8 hbetter |
| Rainy days | 8 | 3better |
| Rainfall | 78 mm | 25 mmbetter |
| Muggy days | 1better | 15 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Jul – Sep
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – Nov
15–28 °C and not too much rain
Cassis month by month
The typical weather for every month at a glance.
22January11° · Sea 14° · 5 h
In January, Cassis is cool: daytime highs average 11 °C, and nights cool down to about 7 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain falls on about 7 days, adding up to 51 mm. All in all, January is not an ideal month for a holiday in Cassis.
Cassis in January28February12° · Sea 13° · 6 h
In February, Cassis is cool: daytime highs average 12 °C, and nights cool down to about 7 °C. The sea averages 13.3 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain falls on about 6 days, adding up to 41 mm. All in all, February is not an ideal month for a holiday in Cassis.
Cassis in February32March14° · Sea 14° · 8 h
In March, Cassis is cool: daytime highs average 14 °C, and nights cool down to about 8 °C. The sea averages 13.5 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 45 mm. All in all, March is not an ideal month for a holiday in Cassis.
Cassis in March32April17° · Sea 15° · 8 h
In April, Cassis is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 14.5 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 58 mm. All in all, April is not an ideal month for a holiday in Cassis.
Cassis in April41May20° · Sea 17° · 10 h
In May, Cassis is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 16.8 °C – swimming is only for the hardy. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 57 mm. All in all, May is a so-so month for a holiday in Cassis.
Cassis in May80June24° · Sea 20° · 11 h
In June, Cassis is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 20.3 °C – refreshing for a swim. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 5 days bring 31 mm in total. All in all, June is an excellent month for a holiday in Cassis.
Cassis in June93July26° · Sea 22° · 12 h
In July, Cassis is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 22.0 °C – refreshing for a swim. With around 12 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 15 mm in total. All in all, July is an excellent month for a holiday in Cassis.
Cassis in July97August27° · Sea 23° · 11 h
In August, Cassis is warm: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 23.2 °C – pleasant for swimming. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 25 mm in total. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Cassis.
Cassis in August79September23° · Sea 22° · 9 h
In September, Cassis is warm: daytime highs average 23 °C, and nights cool down to about 18 °C. The sea averages 21.7 °C – refreshing for a swim. The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 68 mm. All in all, September is a good month for a holiday in Cassis.
Cassis in September40October20° · Sea 20° · 6 h
In October, Cassis is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. The sea averages 19.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 78 mm. All in all, October is a so-so month for a holiday in Cassis.
Cassis in October20November15° · Sea 17° · 5 h
In November, Cassis is cool: daytime highs average 15 °C, and nights cool down to about 11 °C. The sea averages 17.3 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 90 mm in total. All in all, November is not an ideal month for a holiday in Cassis.
Cassis in November20December12° · Sea 15° · 5 h
In December, Cassis is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 15.2 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain falls on about 7 days, adding up to 57 mm. All in all, December is not an ideal month for a holiday in Cassis.
Cassis in DecemberCassis compared
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Cassis vs. Marseille
In October the holiday weather in Cassis and Marseille is about equally good (score 40 vs. 41). During the day it is about as warm in Marseille as in Cassis. The sea is about equally warm.
| in October | Cassis | Marseille |
|---|---|---|
| Holiday score | 40 | 41 |
| Daytime high | 20° | 20° |
| Sea | 20° | 20° |
| Sunshine | 6 h | 6 h |
| Rainy days | 8 | 8 |
| Best time | Jul – Aug | Apr – Oct |
Through the year
France in October: the best places
In October, Cassis ranks 22 among the 31 nearest destinations in this country.
- Marseille20°20°83
- 2Toulon20°20°82
- 3Aix-en-Provence20°82
- 4Avignon20°82
- 5Perpignan21°82
- 6Arles21°81
- 7Orange20°81
- 8Grasse19°80
- 22CassisThis page20°20°40
Planning a trip to Cassis
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Cassis in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Cassis has its best school-holiday weather during the summer holidays (score 96) and its weakest during the Christmas holidays (score 21).
- 32
Easter holidays
Mar – Apr
Poor
- 16 °C by day
- Sea 14 °C
- 8.1 h of sun a day
- 7 rainy days a month
- 49
May half-term
May – Jun
Fair
- 21 °C by day
- Sea 18 °C
- 9.9 h of sun a day
- 7 rainy days a month
Good for: Sightseeing & walks
- 96
Summer holidays
Jul – Aug
ExcellentBest holidays
- 26 °C by day
- Sea 23 °C
- 11.2 h of sun a day
- 3 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 40
October half-term
Oct
Fair
- 20 °C by day
- Sea 20 °C
- 6.3 h of sun a day
- 8 rainy days a month
Good for: Sightseeing & walks
- 21
Christmas holidays
Dec – Jan
Poor
- 12 °C by day
- Sea 15 °C
- 4.7 h of sun a day
- 7 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 45 min
- Distance
- 1,020 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Cassis
When is the best time to visit Cassis?
The best time to visit Cassis is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Cassis?
The sea temperature in Cassis ranges from 13.3 °C in February to 23.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to September.
Can you swim in Cassis in October?
Only if you don't mind cold water: in October the sea averages just 19.6 °C. Comfortable swimming is possible from June to September.
What is the warmest month in Cassis?
August is the warmest month, with average highs of 27 °C and nights around 21 °C. January is the coolest month at 11 °C.
When does it rain most in Cassis?
The wettest month is November with 90 mm of precipitation. The driest month is July with 15 mm.
How many hours of sunshine does Cassis get?
Cassis gets around 2,890 hours of sunshine a year. The sunniest month is July with 12.0 hours a day; in December there are 4.5 hours a day.
What time zone is Cassis in?
Cassis uses the time zone Europe/Paris: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Cassis?
A nonstop flight from London to Cassis takes about 1 h 45 min, for a straight-line distance of about 1,020 km.
Which school holidays are best for Cassis?
Cassis has its best school-holiday weather during the summer holidays (score 96) and its weakest during the Christmas holidays (score 21). Holiday ratings (0–100): Easter holidays 32, May half-term 49, Summer holidays 96, October half-term 40, Christmas holidays 21.
Near Cassis
Other destinations close by.
Places with a climate like Cassis
Destinations whose weather through the year is closest to Cassis's – good alternatives.