AI-generatedVannes at a glance
- Best time
- Jul – Aug
- Warmest month
- Aug · 22°
- Warmest sea
- Aug · 18.3°
- Sunshine a year
- 1,880 h
- Rain a year
- 723 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 20 m
Climate in Vannes
Vannes has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 22 °C, while January is the coolest at 9 °C. With around 1,880 hours of sunshine a year, Vannes is moderately sunny; June is the sunniest month with 7.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: July – August
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 12°
- Midday, 13:00: about 16°
- Afternoon, 16:00: about 17°
- Evening, 20:00: about 15°
- Night, 23:00: about 13°
08:2819:25
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 08:09–09:10 · evening 18:43–19:44
- Blue hour
- Morning 07:57–08:09 · evening 19:44–19:56
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 Vannes in October?
In October, Vannes is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 16.0 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 12 rainy days and 81 mm in total. All in all, October is not an ideal month for a holiday in Vannes.
More details for October
- Daylight
- 10 h 57 min08:28 – 19:25
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %15 %
- Few rainy daysweight 20 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Sea temperature in Vannes
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 15.1 – 16.7 °C
Swimming season: Never above 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Vannes ranges from 9.6 °C in February to 18.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
From November to January 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 17.5 and 19.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 10.2° | 9.0° | 11.0° | cold |
| FebruaryFeb | 9.6° | 8.6° | 10.5° | cold |
| MarchMar | 10.1° | 8.9° | 10.8° | cold |
| AprilApr | 11.8° | 11.0° | 12.9° | cold |
| MayMay | 14.0° | 13.2° | 15.2° | cold |
| JuneJun | 16.4° | 15.3° | 17.5° | cold |
| JulyJul | 17.7° | 16.5° | 18.5° | fresh |
| AugustAug | 18.3° | 17.5° | 19.2° | fresh |
| SeptemberSep | 17.4° | 16.1° | 18.4° | fresh |
| OctoberOct | 16.0° | 15.1° | 16.7° | cold |
| NovemberNov | 14.0° | 13.0° | 15.1° | cold |
| DecemberDec | 11.8° | 11.2° | 12.9° | cold |
Sunshine hours in Vannes
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 3.9 of 11.0 hours of daylight in Vannes, 35 % 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 Vannes
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 8).
Minutes until sunburn in October
- Very fair skin
- about 50 min
- Fair skin
- about 65 min
- Light brown skin
- about 90 min
- Olive skin
- about 120 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 Vannes: 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, Vannes has about 12 rainy days with 81 mm of rain in total.
Wind and clouds in Vannes
How breezy and how cloudy Vannes 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 Vannes typically peaks at 22 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: Oct – Jul.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 66 % of the sky over Vannes: mostly cloudy, with about 3.9 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 Vannes
How often the day gets hot in Vannes (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, Vannes has about 0 hot days, with an average daytime high of 17 °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 Vannes
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°
CoolOctober: nights around 11°. A duvet at night and a jumper for the evening.
The coolest nights are in January (5°), the warmest in July (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from December to March, so the room should be heated.
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 | 9 | 9° | 5° | 10.2° | 2.3 h | 12 | 75 |
| FebruaryFeb | 14 | 10° | 5° | 9.6° | 3.6 h | 10 | 57 |
| MarchMar | 16 | 12° | 6° | 10.1° | 4.6 h | 11 | 56 |
| AprilApr | 22 | 15° | 8° | 11.8° | 6.2 h | 10 | 55 |
| MayMay | 23 | 17° | 11° | 14.0° | 6.9 h | 11 | 55 |
| JuneJun | 38 | 21° | 14° | 16.4° | 7.6 h | 9 | 45 |
| JulyJul | 49 | 22° | 15° | 17.7° | 7.5 h | 8 | 45 |
| AugustAug | 52 | 22° | 15° | 18.3° | 7.3 h | 8 | 45 |
| SeptemberSep | 35 | 20° | 14° | 17.4° | 6.5 h | 8 | 43 |
| OctoberOct | 11 | 17° | 11° | 16.0° | 3.9 h | 12 | 81 |
| NovemberNov | 8 | 12° | 8° | 14.0° | 2.9 h | 13 | 81 |
| DecemberDec | 8 | 10° | 6° | 11.8° | 2.4 h | 13 | 85 |
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
47.66° N, 2.76° W · 20 m · Europe/Paris
Best time to visit Vannes
The best time to visit Vannes is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.3 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. Rain is most frequent from October to December; the wettest month is December with 85 mm.
Vannes through the seasons
How the weather changes over the seasons, with averages for each.
Vannes in spring
Mar – May
Poor
- 12–17 °C by day
- Sea 12 °C
- 6 h of sun a day
- 32 rainy days in all
Vannes in summer
Jun – Aug
Fair
- 21–22 °C by day
- Sea 18 °C
- 8 h of sun a day
- 25 rainy days in all
Vannes in autumn
Sep – Nov
Poor
- 12–20 °C by day
- Sea 16 °C
- 4 h of sun a day
- 33 rainy days in all
Vannes in winter
Dec – Feb
Poor
- 9–10 °C by day
- Sea 11 °C
- 3 h of sun a day
- 34 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Vannes for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Compare two months in Vannes
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 Vannes: score 52 against 11. In August, days are 5 °C warmer than in October. The sea is 2 °C warmer in August. August has 4 fewer rainy days. The sun shines 3 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 11 | 52better |
| Day high | 17° | 22° |
| Night low | 11° | 15° |
| Sea | 16.0° | 18.3° |
| Sunshine | 3.9 h | 7.3 hbetter |
| Rainy days | 12 | 8better |
| Rainfall | 81 mm | 45 mmbetter |
| Muggy days | 0better | 1 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Sep
15–28 °C and not too much rain
Rainy months
Oct – Dec
12 or more rainy days
Vannes month by month
The typical weather for every month at a glance.
9January9° · Sea 10° · 2 h
In January, Vannes is cold: daytime highs average 9 °C, and nights cool down to about 5 °C. The sea averages 10.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 12 rainy days and 75 mm in total. All in all, January is not an ideal month for a holiday in Vannes.
Vannes in January14February10° · Sea 10° · 4 h
In February, Vannes is cold: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 9.6 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 10 rainy days and 57 mm in total. All in all, February is not an ideal month for a holiday in Vannes.
Vannes in February16March12° · Sea 10° · 5 h
In March, Vannes is cool: daytime highs average 12 °C, and nights cool down to about 6 °C. The sea averages 10.1 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 56 mm in total. All in all, March is not an ideal month for a holiday in Vannes.
Vannes in March22April15° · Sea 12° · 6 h
In April, Vannes is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 11.8 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 55 mm in total. All in all, April is not an ideal month for a holiday in Vannes.
Vannes in April23May17° · Sea 14° · 7 h
In May, Vannes is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 14.0 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 55 mm in total. All in all, May is not an ideal month for a holiday in Vannes.
Vannes in May38June21° · Sea 16° · 8 h
In June, Vannes is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 16.4 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 45 mm. All in all, June is not an ideal month for a holiday in Vannes.
Vannes in June49July22° · Sea 18° · 8 h
In July, Vannes is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 17.7 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 45 mm. All in all, July is a so-so month for a holiday in Vannes.
Vannes in July52August22° · Sea 18° · 7 h
In August, Vannes is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 18.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 45 mm. All in all, August is a so-so month for a holiday in Vannes.
Vannes in August35September20° · Sea 17° · 7 h
In September, Vannes is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 17.4 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 43 mm. All in all, September is not an ideal month for a holiday in Vannes.
Vannes in September11October17° · Sea 16° · 4 h
In October, Vannes is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 16.0 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 12 rainy days and 81 mm in total. All in all, October is not an ideal month for a holiday in Vannes.
Vannes in October8November12° · Sea 14° · 3 h
In November, Vannes is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 14.0 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 13 rainy days and 81 mm in total. All in all, November is not an ideal month for a holiday in Vannes.
Vannes in November8December10° · Sea 12° · 2 h
In December, Vannes is cold: daytime highs average 10 °C, and nights cool down to about 6 °C. The sea averages 11.8 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 13 rainy days and 85 mm in total. All in all, December is not an ideal month for a holiday in Vannes.
Vannes in DecemberVannes compared
Put Vannes side by side with another destination.
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Vannes vs. Carnac
In October the holiday weather in Vannes and Carnac is about equally good (score 11 vs. 9). During the day Carnac is 1 °C cooler than Vannes. The sea is about equally warm.
| in October | Vannes | Carnac |
|---|---|---|
| Holiday score | 11 | 9 |
| Daytime high | 17° | 16° |
| Sea | 16° | 16° |
| Sunshine | 4 h | 4 h |
| Rainy days | 12 | 13 |
| Best time | Jul – Aug | Jul – Aug |
Through the year
France in October: the best places
In October, Vannes ranks 22 among the 31 nearest destinations in this country.
- Bordeaux20°18°72
- 2Poitiers18°66
- 3Oradour-sur-Glane17°66
- 4Angers17°65
- 5Tours18°65
- 6Nantes17°63
- 7Orléans17°62
- 8Le Mans17°60
- 22VannesThis page17°16°11
Planning a trip to Vannes
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Vannes 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.
Vannes has its best school-holiday weather during the summer holidays (score 51) and its weakest during the Christmas holidays (score 9).
- 20
Easter holidays
Mar – Apr
Poor
- 14 °C by day
- Sea 11 °C
- 5.7 h of sun a day
- 10 rainy days a month
- 26
May half-term
May – Jun
Poor
- 18 °C by day
- Sea 14 °C
- 7.0 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 51
Summer holidays
Jul – Aug
FairBest holidays
- 22 °C by day
- Sea 18 °C
- 7.4 h of sun a day
- 8 rainy days a month
Good for: Sightseeing & walks
- 11
October half-term
Oct
Poor
- 17 °C by day
- Sea 16 °C
- 3.9 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 9
Christmas holidays
Dec – Jan
Poor
- 9 °C by day
- Sea 11 °C
- 2.3 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- Short trip – train or car is often quicker
- Distance
- 460 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 Vannes
When is the best time to visit Vannes?
The best time to visit Vannes 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 Vannes?
The sea temperature in Vannes ranges from 9.6 °C in February to 18.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Vannes in October?
Only if you don't mind cold water: in October the sea averages just 16.0 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Vannes?
August is the warmest month, with average highs of 22 °C and nights around 15 °C. January is the coolest month at 9 °C.
When does it rain most in Vannes?
Rain is most frequent from October to December; the wettest month is December with 85 mm. The driest month is September with 43 mm.
How many hours of sunshine does Vannes get?
Vannes gets around 1,880 hours of sunshine a year. The sunniest month is June with 7.6 hours a day; in January there are 2.3 hours a day.
What time zone is Vannes in?
Vannes uses the time zone Europe/Paris: UTC+1 in January and UTC+2 in July.
Which school holidays are best for Vannes?
Vannes has its best school-holiday weather during the summer holidays (score 51) and its weakest during the Christmas holidays (score 9). Holiday ratings (0–100): Easter holidays 20, May half-term 26, Summer holidays 51, October half-term 11, Christmas holidays 9.
Near Vannes
Other destinations close by.
Places with a climate like Vannes
Destinations whose weather through the year is closest to Vannes's – good alternatives.