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

Osny Weather in May

Osny in May

The short of it: Osny in May averages a high of 20 °C (67 °F) and a low of 9 °C (49 °F), with 55 mm (2.2 in) of rain and about 15 h 16 min of daylight. Rated 4 of 5 for a visit; the best months are September and April. Source: TerraClimate climate normals, 1991–2020.

Average high 20° · low 9° · rain 55 mm · daylight 15 h 16 min

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

May in Osny brings afternoons near 20° and nights around 9°, with about 55 mm of rain over the month. Much like April: highs about 20°, nights near 9°. Easy travelling weather. Rain is modest, about 55 mm, the 4th wettest month.

The sun is up for about 15 h 16 min in mid-May, 98 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 September and April.

Against its neighbours, Osny runs cooler than most and drier than most in May. Cergy-Pontoise, 4 km to the SSE, sees much the same highs.

May in Osny, by the numbers

Warmth rank
5th warmest of 12
Rain rank
4th wettest of 12
Versus April
3° warmer, 10 mm more rain
Versus June
3° colder
Day–night spread
10°
Snow season
seldom any
Daylight, mid-month
15 h 16 min
Average wind
14 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
Cergy-PontoiseÎle-de-France4 km SSE20°10°55 mm
CergyÎle-de-France4 km SSE20°10°55 mm
SartrouvilleÎle-de-France16 km SE20°10°57 mm
ArgenteuilÎle-de-France19 km SE21°10°57 mm
ColombesÎle-de-France22 km SE21°10°58 mm
NanterreÎle-de-France22 km SSE20°10°57 mm
Rueil-MalmaisonÎle-de-France23 km SSE20°10°57 mm
Asnières-sur-SeineÎle-de-France23 km SE21°10°58 mm

The Almanac · Osny Month by Month

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

Much like April: highs about 20°, nights near 9°. Easy travelling weather. Rain is modest, about 55 mm, the 4th wettest month.

Climate of Osny by month
MonthHighLowRainWindDaylightVisit
January7°2°52 mm15 km/h8 h 39 min✦✦
February9°2°44 mm15 km/h10 h 4 min✦✦✦
March13°4°43 mm16 km/h11 h 44 min✦✦✦✦
April16°6°45 mm15 km/h13 h 39 min✦✦✦✦✦
May20°9°55 mm14 km/h15 h 16 min✦✦✦✦
June23°12°49 mm14 km/h16 h 11 min✦✦✦✦
July25°14°53 mm13 km/h15 h 49 min✦✦✦✦
August25°14°52 mm12 km/h14 h 22 min✦✦✦✦
September21°11°43 mm12 km/h12 h 31 min✦✦✦✦✦
October16°9°65 mm13 km/h10 h 41 min✦✦✦✦
November11°5°57 mm14 km/h9 h 3 min✦✦✦
December8°3°70 mm16 km/h8 h 14 min✦✦

Questions Readers Ask about Osny in May

Answered from the wire & the Almanac

What is the weather like in Osny in May?

Days average 20 °C (67 °F) and nights 9 °C (49 °F), with about 55 mm (2.2 in) of rain over the month. Much like April: highs about 20°, nights near 9°. Easy travelling weather. Rain is modest, about 55 mm, the 4th wettest month.

Is May a good time to visit Osny?

The Almanac gives May 4 of 5 (recommended). The best months are September and April.

How long are the days in Osny in May?

In mid-May the sun is up for about 15 h 16 min. The days are lengthening — from 8 h 14 min in December to 16 h 11 min in June.

Does it snow in Osny in May?

Hardly — May nights average 9 °C (49 °F), above freezing.

What should I pack for Osny in May?

Layers, a warm coat and stout boots.

More Towns in France

All towns in France →

Paris · Marseille · Lyon · Toulouse · Nice · Nantes · Marne La Vallée · Strasbourg · Bordeaux · Montpellier · Lille · Paris 15 Vaugirard

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
Telegrams for your townsWarnings sent to this phone or computer