3.1 /10
Poor

May is a poor month in Flatrock

Climate Overview

Flatrock, Canada in May has cold conditions, with highs averaging around 8.4°C (47°F). Rain falls on about 11 days this month. Winds are noticeable. Sea temperature stays cool at 2.7°C (37°F).

This month falls at the end of Spring. Cold conditions dominate the month.

Daily highs in May gradually rise from around 6°C (43°F) at the start to 11°C (51°F) by month's end.

Rainfall is heaviest during the last third of the month, while the middle tends to be drier.

Expect around 6.9h of sunshine at the start of May, increasing to 9.4h by the end.

The warmest days tend to fall around the 31th, averaging 12°C (54°F).

Compared to April, this month is about 4°C warmer with 2 fewer rainy days. Temperatures will rise further into June.

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Monthly May Averages

Temperature
8°C / 2°C
Feels Like
5°C / -2°C
Rain
11 days · 74 mm
Sunshine
8.6h / day
Humidity
80% — Very Humid
Wind
25 km/h
Wind Direction
W (267°)
Gusts
47 km/h
Daylight
15.2 h
Cloud Cover
74%
Clear Sky Days
1.6
UV Index
5.1 — High
Sea Temperature
3°C
Dew Point
2°C — Dry
Moon Phase
Waxing Gibbous · 66%
Snow Days
2 days · 2.1 cm
Frost Days
4 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

16°C 13°C 10°C 7°C 4°C 1°C -2°C 151015202531
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202531
Sunshine

Daily Wind Speed

0 7 14 21 28 35 151015202531
Wind Speed
Sun Position
Sunrise 05:25
Daylight 15.1h
Sunset 20:32

What to Expect

Cold daytime highs of 8°C (47°F) mean shorter outdoor excursions with warming breaks.

Rain usually comes in shorter passing showers rather than all-day rain.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

January
Poor
Temp
1°C / -4°C
Feels Like
-5°C / -10°C
Rain
14days (128 mm) Wet
Sun
3.9h Poor
Humidity
79% Humid
UV
1.5 Low
Snow Days
16days
February
Poor
Temp
0°C / -5°C
Feels Like
-6°C / -12°C
Rain
12days (112 mm) Wet
Sun
5.2h Fair
Humidity
77% Humid
UV
2.4 Moderate
Snow Days
14days
March
Poor
Temp
2°C / -3°C
Feels Like
-4°C / -9°C
Rain
14days (99 mm) Wet
Sun
6.9h Fair
Humidity
79% Humid
UV
3.5 Moderate
Snow Days
14days
April
Poor
Temp
5°C / 0°C
Feels Like
0°C / -6°C
Rain
13days (91 mm) Wet
Sun
7h Good
Humidity
81% Humid
UV
4.2 Moderate
Snow Days
8days
May
Poor
Temp
8°C / 2°C
Feels Like
5°C / -2°C
Rain
11days (74 mm) Wet
Sun
8.6h Good
Humidity
80% Humid
UV
5.1 High
Snow Days
2days
June
Fair
Temp
14°C / 8°C
Feels Like
12°C / 4°C
Rain
10days (81 mm) Wet
Sun
8.3h Good
Humidity
83% Humid
UV
5.6 High
July best
Good
Temp
19°C / 13°C
Feels Like
18°C / 11°C
Rain
10days (83 mm) Wet
Sun
8.9h Good
Humidity
83% Humid
UV
6.1 High
August best
Excellent
Temp
20°C / 14°C
Feels Like
19°C / 12°C
Rain
10days (77 mm) Wet
Sun
8.7h Good
Humidity
80% Humid
UV
5.4 High
September best
Good
Temp
16°C / 11°C
Feels Like
14°C / 8°C
Rain
10days (91 mm) Wet
Sun
7.3h Good
Humidity
80% Humid
UV
4.2 Moderate
October
Fair
Temp
11°C / 7°C
Feels Like
8°C / 3°C
Rain
9days (84 mm) Wet
Sun
5.6h Fair
Humidity
79% Humid
UV
2.8 Moderate
November
Poor
Temp
7°C / 3°C
Feels Like
3°C / -3°C
Rain
16days (137 mm) Wet
Sun
3.9h Poor
Humidity
79% Humid
UV
1.5 Low
Snow Days
4days
December
Poor
Temp
3°C / -1°C
Feels Like
-3°C / -8°C
Rain
16days (126 mm) Wet
Sun
3.6h Poor
Humidity
78% Humid
UV
1.2 Low
Snow Days
14days
Month Temp Feels Like Rain Sun Humidity UV Status Details
January 1°C / -4°C -5°C / -10°C 14days (128 mm) Wet 3.9h Poor 79% Humid 1.5 Low Poor View Details
February 0°C / -5°C -6°C / -12°C 12days (112 mm) Wet 5.2h Fair 77% Humid 2.4 Moderate Poor View Details
March 2°C / -3°C -4°C / -9°C 14days (99 mm) Wet 6.9h Fair 79% Humid 3.5 Moderate Poor View Details
April 5°C / 0°C 0°C / -6°C 13days (91 mm) Wet 7h Good 81% Humid 4.2 Moderate Poor View Details
May 8°C / 2°C 5°C / -2°C 11days (74 mm) Wet 8.6h Good 80% Humid 5.1 High Poor View Details
June 14°C / 8°C 12°C / 4°C 10days (81 mm) Wet 8.3h Good 83% Humid 5.6 High Fair View Details
July best 19°C / 13°C 18°C / 11°C 10days (83 mm) Wet 8.9h Good 83% Humid 6.1 High Good View Details
August best 20°C / 14°C 19°C / 12°C 10days (77 mm) Wet 8.7h Good 80% Humid 5.4 High Excellent View Details
September best 16°C / 11°C 14°C / 8°C 10days (91 mm) Wet 7.3h Good 80% Humid 4.2 Moderate Good View Details
October 11°C / 7°C 8°C / 3°C 9days (84 mm) Wet 5.6h Fair 79% Humid 2.8 Moderate Fair View Details
November 7°C / 3°C 3°C / -3°C 16days (137 mm) Wet 3.9h Poor 79% Humid 1.5 Low Poor View Details
December 3°C / -1°C -3°C / -8°C 16days (126 mm) Wet 3.6h Poor 78% Humid 1.2 Low Poor View Details

What to Wear

Full winter gear is a must — insulated coat, thermal base layers, warm hat, gloves, and waterproof boots.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm coatUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

May is typically poor for visiting Flatrock, with average highs of 8°C (47°F) and around 11 rainy days. Flatrock, Canada in May has cold conditions, with highs averaging around 8.4°C (47°F). Rain falls on about 11 days this
Flatrock typically sees around 11 rainy days in May with 74 mm (2.9 in) of total rainfall. Pack a waterproof jacket.
Yes, nights in Flatrock during May are cold, averaging 2°C (36°F). Pack warm layers and a coat for evenings.
With highs of 8°C (47°F) and lows of 2°C (36°F) in May, we recommend: Warm coat, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.
May is not the most favourable month weather-wise in Flatrock. Consider visiting during months with milder temperatures or less rainfall for a better experience.
The average UV index in Flatrock during May is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Flatrock gets approximately 15 hours of daylight per day in May, with around 9 hours of sunshine.
Yes, Flatrock typically sees around 2 snow days in May with roughly 2 cm (1 in) of snowfall.

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