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

St. John's in May

The short of it: St. John's in May averages a high of 12 °C (53 °F) and a low of 3 °C (37 °F), with 107 mm (4.2 in) of rain and about 15 h 6 min of daylight. Rated 2 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.

Average high 12° · low 3° · rain 107 mm · daylight 15 h 6 min

✦✦ Travel with care for a visit · best months: July & August

Thirty years of records give St. John's an average May high of 12°, a low of 3° and some 107 mm of rain. Spring takes hold here: highs climb 5° from April to about 12°, with nights near 3°. Wet spells are common — about 107 mm, the 10th wettest month. The snow cover usually melts away this 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, and an oilskin besides. The Almanac rates May 2 of 5 for a visit; the finest months here are July and August.

Against its neighbours, St. John's runs warmer than most and wetter than most in May. Downtown St. John's, 0 km to the SSW, sees much the same highs.

May in St. John's, by the numbers

Warmth rank
6th warmest of 12
Rain rank
10th wettest of 12
Versus April
5° warmer, 17 mm less rain
Versus June
5° colder
Day–night spread
9°
Snow season
Dec–Apr
Daylight, mid-month
15 h 6 min
Average wind
22 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
Downtown St. John'sNewfoundland and Labrador0 km SSW12°3°107 mm
BannermanNewfoundland and Labrador1 km N12°3°107 mm
GeorgestownNewfoundland and Labrador1 km WNW12°3°107 mm
Fort WilliamNewfoundland and Labrador1 km NE12°3°109 mm
RabbittownNewfoundland and Labrador1 km WNW12°3°107 mm
Glenridge CrescentNewfoundland and Labrador2 km N12°3°107 mm
Churchill ParkNewfoundland and Labrador2 km NNW12°3°107 mm
Shea HeightsNewfoundland and Labrador2 km SSW12°3°107 mm

The Almanac · St. John's Month by Month

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

Spring takes hold here: highs climb 5° from April to about 12°, with nights near 3°. Wet spells are common — about 107 mm, the 10th wettest month. The snow cover usually melts away this month.

Climate of St. John's by month
MonthHighLowRainWindDaylightVisit
January0°-7°152 mm29 km/h8 h 50 min✦
February0°-8°128 mm28 km/h10 h 11 min✦
March2°-5°130 mm26 km/h11 h 45 min✦
April6°-1°124 mm24 km/h13 h 34 min✦
May12°3°107 mm22 km/h15 h 6 min✦✦
June17°7°99 mm19 km/h15 h 57 min✦✦✦
July22°12°108 mm19 km/h15 h 36 min✦✦✦
August22°13°105 mm19 km/h14 h 15 min✦✦✦
September18°9°118 mm21 km/h12 h 29 min✦✦✦
October12°5°154 mm24 km/h10 h 45 min✦✦
November7°1°145 mm26 km/h9 h 13 min✦
December3°-4°167 mm29 km/h8 h 27 min✦

Questions Readers Ask about St. John's in May

Answered from the wire & the Almanac

What is the weather like in St. John's in May?

Days average 12 °C (53 °F) and nights 3 °C (37 °F), with about 107 mm (4.2 in) of rain over the month. Spring takes hold here: highs climb 5° from April to about 12°, with nights near 3°. Wet spells are common — about 107 mm, the 10th wettest month. The snow cover usually melts away this month.

Is May a good time to visit St. John's?

The Almanac gives May 2 of 5 (travel with care). The best months are July and August.

How long are the days in St. John's 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 St. John's in May?

Hardly — May nights average 3 °C (37 °F), above freezing.

What should I pack for St. John's 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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