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

Grimsby in August

The short of it: Grimsby in August averages a high of 26 °C (78 °F) and a low of 17 °C (62 °F), with 79 mm (3.1 in) of rain and about 13 h 56 min of daylight. Rated 3 of 5 for a visit; the best months are July and June. Source: TerraClimate climate normals, 1991–2020.

Average high 26° · low 17° · rain 79 mm · daylight 13 h 56 min

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

August in Grimsby brings afternoons near 26° and nights around 17°, with about 79 mm of rain over the month. Much like July: highs about 26°, nights near 17°. Easy travelling weather. Wet spells are common — about 79 mm, the 3rd wettest month.

The sun is up for about 13 h 56 min in mid-August, 68 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 3 of 5 for a visit; the finest months here are July and June.

Against its neighbours, Grimsby runs cooler than most and wetter than most in August. Stoney Creek, 16 km to the W, is 1° warmer by day.

August in Grimsby, by the numbers

Warmth rank
2nd warmest of 12
Rain rank
3rd wettest of 12
Versus July
1° colder, 11 mm more rain
Versus September
4° warmer
Day–night spread
9°
Snow season
Dec–Mar
Daylight, mid-month
13 h 56 min
Average wind
11 km/h

Neighbouring Towns

August averages · distance by the crow’s flight
TownDistanceHighLowRain
Stoney CreekOntario16 km W27°17°79 mm
HamiltonOntario24 km WNW26°17°78 mm
St. CatharinesOntario26 km E26°17°72 mm
OakvilleOntario29 km NNW26°16°65 mm
BurlingtonOntario30 km NW25°15°76 mm
AncasterOntario34 km W26°16°82 mm
WellandOntario35 km SE26°17°79 mm
Niagara FallsOntario42 km ESE26°17°77 mm

The Almanac · Grimsby Month by Month

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

Much like July: highs about 26°, nights near 17°. Easy travelling weather. Wet spells are common — about 79 mm, the 3rd wettest month.

Climate of Grimsby by month
MonthHighLowRainWindDaylightVisit
January-1°-7°71 mm18 km/h9 h 19 min✦
February0°-6°61 mm18 km/h10 h 27 min✦
March5°-3°61 mm16 km/h11 h 48 min✦✦
April12°3°84 mm16 km/h13 h 21 min✦✦
May18°8°79 mm13 km/h14 h 39 min✦✦✦
June24°14°83 mm12 km/h15 h 22 min✦✦✦
July26°17°68 mm11 km/h15 h 4 min✦✦✦✦
August26°17°79 mm11 km/h13 h 56 min✦✦✦
September22°13°74 mm12 km/h12 h 26 min✦✦✦
October15°7°70 mm14 km/h10 h 56 min✦✦✦
November8°2°67 mm16 km/h9 h 38 min✦✦
December3°-4°73 mm17 km/h9 h 0 min✦

Questions Readers Ask about Grimsby in August

Answered from the wire & the Almanac

What is the weather like in Grimsby in August?

Days average 26 °C (78 °F) and nights 17 °C (62 °F), with about 79 mm (3.1 in) of rain over the month. Much like July: highs about 26°, nights near 17°. Easy travelling weather. Wet spells are common — about 79 mm, the 3rd wettest month.

Is August a good time to visit Grimsby?

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

How long are the days in Grimsby in August?

In mid-August the sun is up for about 13 h 56 min. The days are shortening — from 9 h 0 min in December to 15 h 22 min in June.

Does it snow in Grimsby in August?

Hardly — August nights average 17 °C (62 °F), above freezing.

What should I pack for Grimsby 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