Landerneau weather in May

In May, Landerneau sees average daytime highs of 16°C and overnight lows near 9°C, with 68 mm of rain across 11.8 wet days and about 15 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 17°C by the end. The sky is clear or mostly clear about 18% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of May to 15 h 36 min by month's end. Set against the rest of the year, May is Landerneau's 6th-clearest and 8th-windiest month. For the whole year in context, see Landerneau's year-round climate.

Daytime high: 16°; 5th warmest
Overnight low: 9°; 7th coldest
Rainfall: 68 mm; 11.8 wet days
Daylight: 15 hours; 5:43 AM – 8:43 PM
Cloud cover: 67%; 6th clearest
Wind: 16 km/h; 8th windiest
Solar energy: 5.85 kWh/m²
Travel score: 4.6; out of 10

← April Landerneau year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 14°C in the first days to 17°C by the end.

A typical May day in Landerneau reaches about 16°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 20°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

	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)	14	14	14	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17
Avg low (°C)	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	11	11	11

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

Landerneau weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	9° / 5°	91	14.6	8.6	1.7
Feb	10° / 5°	75	12.7	9.9	1.8
Mar	11° / 6°	65	12.4	11.6	2.6
Apr	13° / 7°	74	12.5	13.4	3.4
May	16° / 9°	68	11.8	15	4.6
Jun	18° / 12°	55	10.7	15.8	5.7
Jul	20° / 13°	50	10.9	15.5	6.1
Aug	20° / 14°	57	11.3	14.1	6.1
Sep	19° / 12°	54	10.1	12.4	5.9
Oct	15° / 10°	87	14	10.6	4.2
Nov	12° / 8°	87	14.5	9	2.8
Dec	10° / 6°	97	14.5	8.2	2.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to open up as the month goes on.

	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 (%)	32	31	31	32	32	32	32	31	32	32	32	33	33	32	33	33	34	34	34	34	35	35	35	35	36	36	35	35	35	35	35
Cloudier (%)	68	69	69	68	68	68	68	69	68	68	68	67	67	68	67	67	66	66	66	66	65	65	65	65	64	64	65	65	65	65	65

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

Chance of precipitation in May

Any precipitation

Landerneau gets around 68 mm of rain over 11.8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 45% on the wettest days. The odds ease toward the end of the month.

	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 (%)	45	45	45	44	44	43	42	42	41	41	41	40	40	40	39	39	38	38	38	37	37	36	36	36	35	35	35	36	36	37	38

	Rain chance (%)
1	45
2	45
3	45
4	44
5	44
6	43
7	42
8	42
9	41
10	41
11	41
12	40
13	40
14	40
15	39
16	39
17	38
18	38
19	38
20	37
21	37
22	36
23	36
24	36
25	35
26	35
27	35
28	36
29	36
30	37
31	38

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 95% 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 (%)	98	98	98	97	97	97	97	96	96	96	96	96	96	96	96	96	96	96	95	95	95	94	94	94	93	93	92	91	91	90	89
Comfortable (%)	2	2	2	3	3	3	3	4	4	4	4	4	4	4	4	4	4	4	5	5	5	6	6	6	7	7	8	9	9	10	11

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	97	3
5	97	3
6	97	3
7	97	3
8	96	4
9	96	4
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	96	4
18	96	4
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	93	7
26	93	7
27	92	8
28	91	9
29	91	9
30	90	10
31	89	11

Wind in May

Winds average 16 km/h in May.

Across May, 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	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
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	17	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 May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over May. Sunrise moves from 6:06 AM to 5:28 AM, and sunset from 8:22 PM to 9:01 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)	14.3	14.3	14.4	14.4	14.5	14.5	14.6	14.6	14.7	14.7	14.8	14.8	14.9	14.9	15.0	15.0	15.0	15.1	15.1	15.2	15.2	15.2	15.3	15.3	15.4	15.4	15.4	15.5	15.5	15.5	15.6
Sunrise (AM)	6:06	6:05	6:03	6:01	6:00	5:58	5:56	5:55	5:53	5:52	5:50	5:49	5:47	5:46	5:45	5:43	5:42	5:41	5:40	5:38	5:37	5:36	5:35	5:34	5:33	5:32	5:31	5:30	5:29	5:28	5:28
Sunset (PM)	8:22	8:24	8:25	8:26	8:28	8:29	8:31	8:32	8:34	8:35	8:36	8:38	8:39	8:41	8:42	8:43	8:45	8:46	8:47	8:48	8:50	8:51	8:52	8:53	8:55	8:56	8:57	8:58	8:59	9:00	9:01

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.3	6:06	8:22
2	14.3	6:05	8:24
3	14.4	6:03	8:25
4	14.4	6:01	8:26
5	14.5	6:00	8:28
6	14.5	5:58	8:29
7	14.6	5:56	8:31
8	14.6	5:55	8:32
9	14.7	5:53	8:34
10	14.7	5:52	8:35
11	14.8	5:50	8:36
12	14.8	5:49	8:38
13	14.9	5:47	8:39
14	14.9	5:46	8:41
15	15.0	5:45	8:42
16	15.0	5:43	8:43
17	15.0	5:42	8:45
18	15.1	5:41	8:46
19	15.1	5:40	8:47
20	15.2	5:38	8:48
21	15.2	5:37	8:50
22	15.2	5:36	8:51
23	15.3	5:35	8:52
24	15.3	5:34	8:53
25	15.4	5:33	8:55
26	15.4	5:32	8:56
27	15.4	5:31	8:57
28	15.5	5:30	8:58
29	15.5	5:29	8:59
30	15.5	5:28	9:00
31	15.6	5:28	9:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.85 kWh/m².

For context, solar energy here swings from a low near 0.9 kWh/m² to a high of 6.3 kWh/m² in June across the year — May's 5.85 kWh/m² sits near the top of that range.

	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)	5.4	5.4	5.4	5.5	5.5	5.5	5.6	5.6	5.6	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.9	5.9	5.9	5.9	6.0	6.0	6.0	6.0	6.0	6.1	6.1	6.1	6.1	6.1	6.1
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.4	Bright
2	5.4	Bright
3	5.4	Bright
4	5.5	Bright
5	5.5	Bright
6	5.5	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.7	Bright
11	5.7	Bright
12	5.7	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.8	Bright
17	5.9	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	6.0	Bright
22	6.0	Bright
23	6.0	Intense
24	6.0	Intense
25	6.0	Intense
26	6.1	Intense
27	6.1	Intense
28	6.1	Intense
29	6.1	Intense
30	6.1	Intense
31	6.1	Intense

Planning a trip in May

Is May a good time to visit Landerneau?

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

4.6

Sightseeing

5th-best month of the year

0.5

Beach & pool

5th-best month of the year

May is a reasonable time to visit Landerneau for sightseeing.

What to pack for Landerneau in May

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

In May, Landerneau sees daytime highs around 16°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Landerneau in May

The nearest coast averages about 12°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in August at about 15°C and coldest in March 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)	11	10	10	11	12	14	15	15	15	14	13	12
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	11	Bracing
Feb	10	Bracing
Mar	10	Bracing
Apr	11	Bracing
May	12	Bracing
Jun	14	Bracing
Jul	15	Bracing
Aug	15	Cool
Sep	15	Bracing
Oct	14	Bracing
Nov	13	Bracing
Dec	12	Bracing

UV index in Landerneau in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Landerneau peaks around August 14 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	1	3	5	6	7	6	7	5	3	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Moderate	Low	Low

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

Location & terrain

Where is Landerneau?

Landerneau sits at 48.5°N, 4.3°W, 15 m above sea level, in France. The nearest listed city is Brest, 19 km away.

Topography around Landerneau

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

Within 3 km, the terrain around Landerneau has only modest variations in elevation — a maximum elevation change of 184 m around an average of 80 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, significant variations in elevation — a maximum elevation change of 384 m.

The land around Landerneau is covered by trees (45%), cropland (21%) and grassland (20%) within 3 km, trees (33%), cropland (33%) and grassland (24%) within 16 km, and water (50%) within 80 km.

3 km

184 m

trees 45%

16 km

231 m

trees 33%

80 km

384 m

water 50%

treesgrasslandcroplandartificial surfaceswater

← April Landerneau year-round climate June →Best places to visit in May

May weather nearby: Brest 19 km · Morlaix 34 km · Douarnenez 40 km · Quimper 52 km · Lannion 66 km · Concarneau 69 km · Ploemeur 100 km · Lorient 102 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 Landerneau (48.4515°, -4.2518°, elevation 15 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	14	8
2	14	8
3	14	8
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	16	9
15	16	9
16	16	9
17	16	9
18	16	9
19	16	10
20	16	10
21	16	10
22	16	10
23	17	10
24	17	10
25	17	10
26	17	10
27	17	10
28	17	10
29	17	11
30	17	11
31	17	11

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

	Rain chance (%)
1	45
2	45
3	45
4	44
5	44
6	43
7	42
8	42
9	41
10	41
11	41
12	40
13	40
14	40
15	39
16	39
17	38
18	38
19	38
20	37
21	37
22	36
23	36
24	36
25	35
26	35
27	35
28	36
29	36
30	37
31	38

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	97	3
5	97	3
6	97	3
7	97	3
8	96	4
9	96	4
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	96	4
18	96	4
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	93	7
26	93	7
27	92	8
28	91	9
29	91	9
30	90	10
31	89	11

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

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

	Rain chance (%)
1	45
2	45
3	45
4	44
5	44
6	43
7	42
8	42
9	41
10	41
11	41
12	40
13	40
14	40
15	39
16	39
17	38
18	38
19	38
20	37
21	37
22	36
23	36
24	36
25	35
26	35
27	35
28	36
29	36
30	37
31	38

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	97	3
5	97	3
6	97	3
7	97	3
8	96	4
9	96	4
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	96	4
18	96	4
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	93	7
26	93	7
27	92	8
28	91	9
29	91	9
30	90	10
31	89	11

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

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

	Rain chance (%)
1	45
2	45
3	45
4	44
5	44
6	43
7	42
8	42
9	41
10	41
11	41
12	40
13	40
14	40
15	39
16	39
17	38
18	38
19	38
20	37
21	37
22	36
23	36
24	36
25	35
26	35
27	35
28	36
29	36
30	37
31	38

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	97	3
5	97	3
6	97	3
7	97	3
8	96	4
9	96	4
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	96	4
18	96	4
19	95	5
20	95	5
21	95	5
22	94	6
23	94	6
24	94	6
25	93	7
26	93	7
27	92	8
28	91	9
29	91	9
30	90	10
31	89	11