Vannes weather in March

In March, Vannes sees average daytime highs of 12°C and overnight lows near 5°C, with 52 mm of precipitation across 10.1 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 11°C in the first days to 13°C by the end. The sky is clear or mostly clear about 21% of the time in March, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of March to 12 h 30 min by month's end. Set against the rest of the year, March is Vannes's 7th-clearest and 4th-windiest month. For the whole year in context, see Vannes's year-round climate.

Daytime high: 12°; 9th warmest
Overnight low: 5°; 4th coldest
Precipitation: 52 mm; 10.1 wet days
Daylight: 11 h 36 min; 7:34 AM – 7:08 PM
Cloud cover: 68%; 7th clearest
Wind: 16 km/h; 4th windiest
Solar energy: 3.26 kWh/m²
Travel score: 3.1; out of 10

Air quality: Good; PM2.5 8.9 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← February Vannes year-round climate April →Best places to visit in March

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 11°C in the first days to 13°C by the end.

A typical March day in Vannes reaches about 12°C in the afternoon and slips back to 5°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 15°C. Set against its neighbours, March runs about 2°C warmer than February and about 2°C cooler than April.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	10	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13	13	13
Avg low (°C)	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6

	Avg high (°C)	Avg low (°C)
1	10	4
2	11	4
3	11	5
4	11	5
5	11	5
6	11	5
7	11	5
8	11	5
9	11	5
10	12	5
11	12	5
12	12	5
13	12	5
14	12	5
15	12	5
16	12	5
17	12	6
18	12	6
19	12	6
20	13	6
21	13	6
22	13	6
23	13	6
24	13	6
25	13	6
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

How March really feels in Vannes

Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Vannes weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	9° / 4°	74	11.3	8.7	1.7
Feb	10° / 4°	58	9.5	9.9	2.0
Mar	12° / 5°	52	10.1	11.6	3.1
Apr	14° / 7°	57	11	13.3	4.1
May	17° / 10°	58	11.1	14.9	5.4
Jun	20° / 13°	47	8.4	15.7	6.4
Jul	22° / 14°	39	8	15.4	7.1
Aug	22° / 14°	45	8	14.1	7.0
Sep	20° / 12°	49	7.9	12.4	6.6
Oct	16° / 10°	78	11.6	10.6	4.8
Nov	12° / 7°	73	11.7	9.1	3.1
Dec	10° / 5°	83	11.9	8.3	1.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 66%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	31	32	32	32	33	33	33	32	33	32	33	33	33	32	32	32	32	33	34	34	35	35	36	36	37	37	38	38	39	39	39
Cloudier (%)	69	68	68	68	67	67	67	68	67	68	67	67	67	68	68	68	68	67	66	66	65	65	64	64	63	63	62	62	61	61	61

	Clearer (%)	Cloudier (%)
1	31	69
2	32	68
3	32	68
4	32	68
5	33	67
6	33	67
7	33	67
8	32	68
9	33	67
10	32	68
11	33	67
12	33	67
13	33	67
14	32	68
15	32	68
16	32	68
17	32	68
18	33	67
19	34	66
20	34	66
21	35	65
22	35	65
23	36	64
24	36	64
25	37	63
26	37	63
27	38	62
28	38	62
29	39	61
30	39	61
31	39	61

Chance of precipitation in March

Any precipitation

Vannes gets around 52 mm of rain and snow over 10.1 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 37% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	36	36	36	35	34	33	32	31	30	29	28	27	27	26	26	27	27	28	29	30	31	32	33	34	35	36	36	37	37	37	37

	Rain chance (%)
1	36
2	36
3	36
4	35
5	34
6	33
7	32
8	31
9	30
10	29
11	28
12	27
13	27
14	26
15	26
16	27
17	27
18	28
19	29
20	30
21	31
22	32
23	33
24	34
25	35
26	36
27	36
28	37
29	37
30	37
31	37

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in March

Winds average 16 km/h in March.

Across March, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	17	17	17	17	17	17	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	17	light breeze
2	17	light breeze
3	17	light breeze
4	17	light breeze
5	17	light breeze
6	17	light breeze
7	16	light breeze
8	16	light breeze
9	16	light breeze
10	16	light breeze
11	16	light breeze
12	16	light breeze
13	16	light breeze
14	16	light breeze
15	16	light breeze
16	16	light breeze
17	16	light breeze
18	16	light breeze
19	16	light breeze
20	16	light breeze
21	16	light breeze
22	16	light breeze
23	16	light breeze
24	16	light breeze
25	16	light breeze
26	16	light breeze
27	16	light breeze
28	16	light breeze
29	16	light breeze
30	16	light breeze
31	16	light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 10 h 42 min at the start of March to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over March. Sunrise moves from 8:03 AM to 7:02 AM, and sunset from 6:45 PM to 7:30 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	10.7	10.8	10.8	10.9	10.9	11.0	11.0	11.1	11.2	11.2	11.3	11.3	11.4	11.5	11.5	11.6	11.6	11.7	11.7	11.8	11.9	11.9	12.0	12.0	12.1	12.2	12.2	12.3	12.3	12.4	12.5
Sunrise (AM)	8:03	8:01	7:59	7:58	7:56	7:54	7:52	7:50	7:48	7:46	7:44	7:42	7:40	7:38	7:36	7:34	7:31	7:29	7:27	7:25	7:23	7:21	7:19	7:17	7:15	7:13	7:11	7:09	7:06	7:04	7:02
Sunset (PM)	6:45	6:47	6:48	6:50	6:51	6:53	6:54	6:56	6:57	6:59	7:00	7:02	7:03	7:05	7:06	7:08	7:09	7:11	7:12	7:14	7:15	7:17	7:18	7:20	7:21	7:22	7:24	7:25	7:27	7:28	7:30

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.7	8:03	6:45
2	10.8	8:01	6:47
3	10.8	7:59	6:48
4	10.9	7:58	6:50
5	10.9	7:56	6:51
6	11.0	7:54	6:53
7	11.0	7:52	6:54
8	11.1	7:50	6:56
9	11.2	7:48	6:57
10	11.2	7:46	6:59
11	11.3	7:44	7:00
12	11.3	7:42	7:02
13	11.4	7:40	7:03
14	11.5	7:38	7:05
15	11.5	7:36	7:06
16	11.6	7:34	7:08
17	11.6	7:31	7:09
18	11.7	7:29	7:11
19	11.7	7:27	7:12
20	11.8	7:25	7:14
21	11.9	7:23	7:15
22	11.9	7:21	7:17
23	12.0	7:19	7:18
24	12.0	7:17	7:20
25	12.1	7:15	7:21
26	12.2	7:13	7:22
27	12.2	7:11	7:24
28	12.3	7:09	7:25
29	12.3	7:06	7:27
30	12.4	7:04	7:28
31	12.5	7:02	7:30

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 3.26 kWh/m².

For context, solar energy here swings from a low near 0.95 kWh/m² to a high of 6.11 kWh/m² in June across the year — March's 3.26 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.5	2.6	2.6	2.7	2.7	2.8	2.8	2.9	2.9	3.0	3.0	3.1	3.1	3.2	3.2	3.3	3.3	3.4	3.4	3.5	3.5	3.6	3.6	3.7	3.7	3.8	3.8	3.9	3.9	4.0	4.0
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright

	Solar energy (kWh/m²)	Level
1	2.5	Moderate
2	2.6	Moderate
3	2.6	Moderate
4	2.7	Moderate
5	2.7	Moderate
6	2.8	Moderate
7	2.8	Moderate
8	2.9	Moderate
9	2.9	Moderate
10	3.0	Moderate
11	3.0	Moderate
12	3.1	Moderate
13	3.1	Moderate
14	3.2	Moderate
15	3.2	Moderate
16	3.3	Moderate
17	3.3	Moderate
18	3.4	Moderate
19	3.4	Moderate
20	3.5	Moderate
21	3.5	Moderate
22	3.6	Moderate
23	3.6	Moderate
24	3.7	Moderate
25	3.7	Moderate
26	3.8	Moderate
27	3.8	Moderate
28	3.9	Moderate
29	3.9	Moderate
30	4.0	Bright
31	4.0	Bright

Planning a trip in March

Is March a good time to visit Vannes?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.1

Sightseeing

8th-best month of the year

0.0

Beach & pool

9th-best month of the year

March is a weaker month for outdoor sightseeing in Vannes.

What to pack for Vannes in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Vannes sees daytime highs around 12°C and nights near 5°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Vannes in March

The nearest coast averages about 10°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 km away) is warmest in August at about 18°C and coldest in February near 10°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	10	10	10	12	14	16	18	18	17	16	14	12
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Cool	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	10	Bracing
Feb	10	Bracing
Mar	10	Bracing
Apr	12	Bracing
May	14	Bracing
Jun	16	Cool
Jul	18	Cool
Aug	18	Cool
Sep	17	Cool
Oct	16	Cool
Nov	14	Bracing
Dec	12	Bracing

UV index in Vannes in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vannes peaks around August 10 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	5	6	7	7	7	5	3	1	1
Level	Low	Low	Moderate	High	High	High	High	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	5	High
May	6	High
Jun	7	High
Jul	7	High
Aug	7	High
Sep	5	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Vannes?

Vannes sits at 47.7°N, 2.8°W, 20 m above sea level, in France. The nearest listed city is Guérande, 44 km away.

Topography around Vannes

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vannes.

Within 3 km, the terrain around Vannes has only modest variations in elevation — a maximum elevation change of 64 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 177 m; within 80 km, significant variations in elevation — a maximum elevation change of 395 m.

The land around Vannes is covered by artificial surfaces (40%) and trees (36%) within 3 km, trees (33%), grassland (27%) and cropland (20%) within 16 km, and water (33%), trees (24%) and cropland (23%) within 80 km.

3 km

64 m

artificial surfaces 40%

16 km

177 m

trees 33%

80 km

395 m

water 33%

treesgrasslandcroplandartificial surfaceswaterwetland

← February Vannes year-round climate April →Best places to visit in March

March weather nearby: Guérande 44 km · Lanester 45 km · Lorient 47 km · Pontivy 48 km · La Baule-Escoublac 50 km · Ploemeur 51 km · Saint-Nazaire 59 km · Concarneau 90 km

France travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E; 230 V · 50 Hz
Prices: ≈ 77% of US; price level, 2025
GDP per capita: $48,986; 2025
Happiness: 6.6 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.3; per 100k, 2023
Road deaths: 5.1; per 100k/yr, 2019
Income group: High; World Bank
English: Moderate; EF EPI 539
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Vannes (47.6569°, -2.762°, elevation 20 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	10	4
2	11	4
3	11	5
4	11	5
5	11	5
6	11	5
7	11	5
8	11	5
9	11	5
10	12	5
11	12	5
12	12	5
13	12	5
14	12	5
15	12	5
16	12	5
17	12	6
18	12	6
19	12	6
20	13	6
21	13	6
22	13	6
23	13	6
24	13	6
25	13	6
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

	Clearer (%)	Cloudier (%)
1	31	69
2	32	68
3	32	68
4	32	68
5	33	67
6	33	67
7	33	67
8	32	68
9	33	67
10	32	68
11	33	67
12	33	67
13	33	67
14	32	68
15	32	68
16	32	68
17	32	68
18	33	67
19	34	66
20	34	66
21	35	65
22	35	65
23	36	64
24	36	64
25	37	63
26	37	63
27	38	62
28	38	62
29	39	61
30	39	61
31	39	61

	Rain chance (%)
1	36
2	36
3	36
4	35
5	34
6	33
7	32
8	31
9	30
10	29
11	28
12	27
13	27
14	26
15	26
16	27
17	27
18	28
19	29
20	30
21	31
22	32
23	33
24	34
25	35
26	36
27	36
28	37
29	37
30	37
31	37

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	10	4
2	11	4
3	11	5
4	11	5
5	11	5
6	11	5
7	11	5
8	11	5
9	11	5
10	12	5
11	12	5
12	12	5
13	12	5
14	12	5
15	12	5
16	12	5
17	12	6
18	12	6
19	12	6
20	13	6
21	13	6
22	13	6
23	13	6
24	13	6
25	13	6
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

	Clearer (%)	Cloudier (%)
1	31	69
2	32	68
3	32	68
4	32	68
5	33	67
6	33	67
7	33	67
8	32	68
9	33	67
10	32	68
11	33	67
12	33	67
13	33	67
14	32	68
15	32	68
16	32	68
17	32	68
18	33	67
19	34	66
20	34	66
21	35	65
22	35	65
23	36	64
24	36	64
25	37	63
26	37	63
27	38	62
28	38	62
29	39	61
30	39	61
31	39	61

	Rain chance (%)
1	36
2	36
3	36
4	35
5	34
6	33
7	32
8	31
9	30
10	29
11	28
12	27
13	27
14	26
15	26
16	27
17	27
18	28
19	29
20	30
21	31
22	32
23	33
24	34
25	35
26	36
27	36
28	37
29	37
30	37
31	37

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	10	4
2	11	4
3	11	5
4	11	5
5	11	5
6	11	5
7	11	5
8	11	5
9	11	5
10	12	5
11	12	5
12	12	5
13	12	5
14	12	5
15	12	5
16	12	5
17	12	6
18	12	6
19	12	6
20	13	6
21	13	6
22	13	6
23	13	6
24	13	6
25	13	6
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

	Clearer (%)	Cloudier (%)
1	31	69
2	32	68
3	32	68
4	32	68
5	33	67
6	33	67
7	33	67
8	32	68
9	33	67
10	32	68
11	33	67
12	33	67
13	33	67
14	32	68
15	32	68
16	32	68
17	32	68
18	33	67
19	34	66
20	34	66
21	35	65
22	35	65
23	36	64
24	36	64
25	37	63
26	37	63
27	38	62
28	38	62
29	39	61
30	39	61
31	39	61

	Rain chance (%)
1	36
2	36
3	36
4	35
5	34
6	33
7	32
8	31
9	30
10	29
11	28
12	27
13	27
14	26
15	26
16	27
17	27
18	28
19	29
20	30
21	31
22	32
23	33
24	34
25	35
26	36
27	36
28	37
29	37
30	37
31	37

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100