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

Thônex in May

The short of it: Thônex in May averages a high of 20 °C (68 °F) and a low of 9 °C (48 °F), with 74 mm (2.9 in) of rain and about 14 h 57 min of daylight. Rated 3 of 5 for a visit; the best months are August and April. Source: TerraClimate climate normals, 1991–2020.

Average high 20° · low 9° · rain 74 mm · daylight 14 h 57 min

✦✦✦ Fair for a visit · best months: August & April

Thirty years of records give Thônex an average May high of 20°, a low of 9° and some 74 mm of rain. Much like April: highs about 20°, nights near 9°. Easy travelling weather. Wet spells are common — about 74 mm, the 7th wettest month.

The sun is up for about 14 h 57 min in mid-May, 88 minutes more than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates May 3 of 5 for a visit; the finest months here are August and April.

Against its neighbours, Thônex runs warmer than most and wetter than most in May. Gaillard, 1 km to the ESE, sees much the same highs.

May in Thônex, by the numbers

Warmth rank
5th warmest of 12
Rain rank
7th wettest of 12
Versus April
4° warmer, 18 mm more rain
Versus June
4° colder
Day–night spread
11°
Snow season
Jan–Feb
Daylight, mid-month
14 h 57 min
Average wind
8 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
GaillardAuvergne-Rhône-Alpes1 km ESE20°9°74 mm
Chêne-BougeriesGeneva2 km NW20°9°74 mm
VeyrierGeneva3 km SSW20°9°74 mm
AnnemasseAuvergne-Rhône-Alpes3 km ENE20°9°77 mm
GenevaGeneva4 km WNW20°9°73 mm
CarougeGeneva5 km W20°9°73 mm
LancyGeneva7 km W20°9°75 mm
Plan-les-OuatesGeneva7 km WSW20°9°75 mm

The Almanac · Thônex Month by Month

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

Much like April: highs about 20°, nights near 9°. Easy travelling weather. Wet spells are common — about 74 mm, the 7th wettest month.

Climate of Thônex by month
MonthHighLowRainWindDaylightVisit
January5°-1°76 mm8 km/h9 h 0 min✦
February7°-1°66 mm8 km/h10 h 16 min✦✦
March13°2°64 mm9 km/h11 h 46 min✦✦✦
April16°5°56 mm9 km/h13 h 30 min✦✦✦✦
May20°9°74 mm8 km/h14 h 57 min✦✦✦
June24°12°76 mm8 km/h15 h 45 min✦✦✦
July26°14°73 mm8 km/h15 h 25 min✦✦✦
August26°14°65 mm7 km/h14 h 9 min✦✦✦✦
September21°10°90 mm6 km/h12 h 28 min✦✦✦
October15°7°93 mm7 km/h10 h 49 min✦✦
November10°3°89 mm8 km/h9 h 21 min✦
December6°1°91 mm8 km/h8 h 38 min✦

Questions Readers Ask about Thônex in May

Answered from the wire & the Almanac

What is the weather like in Thônex in May?

Days average 20 °C (68 °F) and nights 9 °C (48 °F), with about 74 mm (2.9 in) of rain over the month. Much like April: highs about 20°, nights near 9°. Easy travelling weather. Wet spells are common — about 74 mm, the 7th wettest month.

Is May a good time to visit Thônex?

The Almanac gives May 3 of 5 (fair). The best months are August and April.

How long are the days in Thônex in May?

In mid-May the sun is up for about 14 h 57 min. The days are lengthening — from 8 h 38 min in December to 15 h 45 min in June.

Does it snow in Thônex in May?

Hardly — May nights average 9 °C (48 °F), above freezing.

What should I pack for Thônex in May?

Light clothes and a jacket for the evening, plus a good raincoat — it is a wet month.

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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
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