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

Onex in August

The short of it: Onex in August averages a high of 26 °C (80 °F) and a low of 14 °C (57 °F), with 62 mm (2.4 in) of rain and about 14 h 9 min of daylight. Rated 4 of 5 for a visit; the best months are August and April. Source: TerraClimate climate normals, 1991–2020.

Average high 26° · low 14° · rain 62 mm · daylight 14 h 9 min

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

August in Onex brings afternoons near 26° and nights around 14°, with about 62 mm of rain over the month. Much like July: highs about 26°, nights near 14°. Easy travelling weather. Wet spells are common — about 62 mm, the 11th wettest month.

The sun is up for about 14 h 9 min in mid-August, 77 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates August 4 of 5 for a visit; it is the best month of the year to come.

Against its neighbours, Onex runs warmer than most and about as wet in August. Lancy, 1 km to the NE, sees much the same highs.

August in Onex, by the numbers

Warmth rank
2nd warmest of 12
Rain rank
11th wettest of 12
Versus July
1° colder, 11 mm less rain
Versus September
5° warmer
Day–night spread
13°
Snow season
Jan–Feb
Daylight, mid-month
14 h 9 min
Average wind
7 km/h

Neighbouring Towns

August averages · distance by the crow’s flight
TownDistanceHighLowRain
LancyGeneva1 km NE26°14°62 mm
Plan-les-OuatesGeneva2 km SSE26°14°62 mm
BernexGeneva2 km WSW26°14°62 mm
CarougeGeneva3 km E26°14°63 mm
GenevaGeneva4 km ENE26°14°63 mm
VernierGeneva4 km NNW26°14°64 mm
Saint-Julien-en-GenevoisAuvergne-Rhône-Alpes5 km SSW26°13°63 mm
Le Grand-SaconnexGeneva6 km NNE26°14°64 mm

The Almanac · Onex Month by Month

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

Much like July: highs about 26°, nights near 14°. Easy travelling weather. Wet spells are common — about 62 mm, the 11th wettest month.

Climate of Onex by month
MonthHighLowRainWindDaylightVisit
January6°-1°76 mm8 km/h9 h 0 min✦
February8°-1°66 mm9 km/h10 h 16 min✦✦
March13°2°64 mm9 km/h11 h 46 min✦✦✦
April17°6°59 mm9 km/h13 h 30 min✦✦✦✦
May20°9°75 mm9 km/h14 h 57 min✦✦✦
June25°12°76 mm8 km/h15 h 45 min✦✦✦
July27°14°73 mm8 km/h15 h 25 min✦✦✦
August26°14°62 mm7 km/h14 h 9 min✦✦✦✦
September21°10°92 mm7 km/h12 h 28 min✦✦✦
October16°7°97 mm7 km/h10 h 49 min✦✦
November10°3°90 mm8 km/h9 h 21 min✦
December6°1°92 mm8 km/h8 h 38 min✦

Questions Readers Ask about Onex in August

Answered from the wire & the Almanac

What is the weather like in Onex in August?

Days average 26 °C (80 °F) and nights 14 °C (57 °F), with about 62 mm (2.4 in) of rain over the month. Much like July: highs about 26°, nights near 14°. Easy travelling weather. Wet spells are common — about 62 mm, the 11th wettest month.

Is August a good time to visit Onex?

The Almanac gives August 4 of 5 (recommended). It is the best month of the year to visit.

How long are the days in Onex in August?

In mid-August the sun is up for about 14 h 9 min. The days are shortening — from 8 h 38 min in December to 15 h 45 min in June.

Does it snow in Onex in August?

Hardly — August nights average 14 °C (57 °F), above freezing.

What should I pack for Onex in August?

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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