The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Carnac Weather in May

Carnac in May

The short of it: Carnac in May averages a high of 18 °C (64 °F) and a low of 10 °C (51 °F), with 54 mm (2.1 in) of rain and about 15 h 6 min of daylight. Rated 4 of 5 for a visit; the best months are July and June. Source: TerraClimate climate normals, 1991–2020.

Average high 18° · low 10° · rain 54 mm · daylight 15 h 6 min

✦✦✦✦ Recommended for a visit · best months: July & June

Thirty years of records give Carnac an average May high of 18°, a low of 10° and some 54 mm of rain. Much like April: highs about 18°, nights near 10°. A wool coat will serve you well. Rain is modest, about 54 mm, the 10th wettest month.

The sun is up for about 15 h 6 min in mid-May, 92 minutes more than a month before.

For the traveller: pack layers, a wool coat and stout boots. The Almanac rates May 4 of 5 for a visit; the finest months here are July and June.

Against its neighbours, Carnac runs about middling and drier than most in May. Auray, 12 km to the NE, sees much the same highs.

May in Carnac, by the numbers

Warmth rank
5th warmest of 12
Rain rank
10th wettest of 12
Versus April
3° warmer, 11 mm less rain
Versus June
2° colder
Day–night spread
7°
Snow season
seldom any
Daylight, mid-month
15 h 6 min
Average wind
18 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
AurayBrittany12 km NE18°10°56 mm
QuiberonBrittany12 km SSW17°11°49 mm
BrechBrittany16 km NNE18°10°56 mm
ArradonBrittany20 km ENE18°10°56 mm
PluvignerBrittany22 km NNE18°10°58 mm
RiantecBrittany22 km NW18°10°54 mm
KervignacBrittany23 km NNW18°10°56 mm
SarzeauBrittany24 km ESE17°11°51 mm

The Almanac · Carnac Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Recommended
The Almanac Speaks
May
✦✦✦✦✦

Much like April: highs about 18°, nights near 10°. A wool coat will serve you well. Rain is modest, about 54 mm, the 10th wettest month.

Climate of Carnac by month
MonthHighLowRainWindDaylightVisit
January10°5°101 mm21 km/h8 h 50 min✦
February11°5°79 mm19 km/h10 h 11 min✦✦
March13°6°65 mm19 km/h11 h 45 min✦✦✦
April15°8°65 mm19 km/h13 h 34 min✦✦✦
May18°10°54 mm18 km/h15 h 6 min✦✦✦✦
June20°13°44 mm17 km/h15 h 57 min✦✦✦✦✦
July22°15°45 mm17 km/h15 h 36 min✦✦✦✦✦
August22°15°59 mm16 km/h14 h 15 min✦✦✦✦
September20°13°60 mm16 km/h12 h 29 min✦✦✦✦
October17°11°103 mm18 km/h10 h 45 min✦✦✦
November14°8°129 mm19 km/h9 h 13 min✦✦
December11°6°112 mm21 km/h8 h 27 min✦✦

Questions Readers Ask about Carnac in May

Answered from the wire & the Almanac

What is the weather like in Carnac in May?

Days average 18 °C (64 °F) and nights 10 °C (51 °F), with about 54 mm (2.1 in) of rain over the month. Much like April: highs about 18°, nights near 10°. A wool coat will serve you well. Rain is modest, about 54 mm, the 10th wettest month.

Is May a good time to visit Carnac?

The Almanac gives May 4 of 5 (recommended). The best months are July and June.

How long are the days in Carnac in May?

In mid-May the sun is up for about 15 h 6 min. The days are lengthening — from 8 h 27 min in December to 15 h 57 min in June.

Does it snow in Carnac in May?

Hardly — May nights average 10 °C (51 °F), above freezing.

What should I pack for Carnac in May?

Layers, a warm coat and stout boots.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor