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

Rotnes Weather in May

Rotnes in May

The short of it: Rotnes in May averages a high of 15 °C (58 °F) and a low of 5 °C (41 °F), with 65 mm (2.6 in) of rain and about 17 h 7 min of daylight. Rated 3 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.

Average high 15° · low 5° · rain 65 mm · daylight 17 h 7 min

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

Thirty years of records give Rotnes an average May high of 15°, a low of 5° and some 65 mm of rain. Spring takes hold here: highs climb 5° from April to about 15°, with nights near 5°. Wet spells are common — about 65 mm, the 9th wettest month.

The sun is up for about 17 h 7 min in mid-May, 159 minutes more than a month before.

For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates May 3 of 5 for a visit; the finest months here are July and August.

Against its neighbours, Rotnes runs cooler than most and wetter than most in May. Ask, 10 km to the E, is 1° warmer by day.

May in Rotnes, by the numbers

Warmth rank
4th warmest of 12
Rain rank
9th wettest of 12
Versus April
5° warmer, 14 mm more rain
Versus June
4° colder
Day–night spread
9°
Snow season
Nov–Mar
Daylight, mid-month
17 h 7 min
Average wind
11 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
AskAkershus10 km E15°5°62 mm
StrømmenAkershus14 km SE15°5°61 mm
LillestrømAkershus15 km SE16°5°59 mm
KløftaAkershus15 km E16°5°60 mm
EnsjøOslo16 km SSW17°7°52 mm
OsloOslo17 km SSW17°7°51 mm
JessheimAkershus20 km ENE16°4°62 mm
LysakerAkershus21 km SW16°7°52 mm

The Almanac · Rotnes Month by Month

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

Spring takes hold here: highs climb 5° from April to about 15°, with nights near 5°. Wet spells are common — about 65 mm, the 9th wettest month.

Climate of Rotnes by month
MonthHighLowRainWindDaylightVisit
January0°-6°67 mm10 km/h6 h 39 min✦
February0°-6°50 mm10 km/h9 h 1 min✦
March4°-4°52 mm10 km/h11 h 34 min✦✦
April9°1°51 mm10 km/h14 h 28 min✦✦
May15°5°65 mm11 km/h17 h 7 min✦✦✦
June18°9°88 mm11 km/h18 h 50 min✦✦✦
July21°11°94 mm10 km/h18 h 5 min✦✦✦
August19°11°110 mm9 km/h15 h 37 min✦✦✦
September15°7°97 mm10 km/h12 h 44 min✦✦
October8°3°106 mm10 km/h9 h 58 min✦
November3°-1°107 mm10 km/h7 h 21 min✦
December0°-4°76 mm10 km/h5 h 54 min✦

Questions Readers Ask about Rotnes in May

Answered from the wire & the Almanac

What is the weather like in Rotnes in May?

Days average 15 °C (58 °F) and nights 5 °C (41 °F), with about 65 mm (2.6 in) of rain over the month. Spring takes hold here: highs climb 5° from April to about 15°, with nights near 5°. Wet spells are common — about 65 mm, the 9th wettest month.

Is May a good time to visit Rotnes?

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

How long are the days in Rotnes in May?

In mid-May the sun is up for about 17 h 7 min. The days are lengthening — from 5 h 54 min in December to 18 h 50 min in June.

Does it snow in Rotnes in May?

Hardly — May nights average 5 °C (41 °F), above freezing.

What should I pack for Rotnes in May?

Layers, a warm coat and stout boots, 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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