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Bolton Weather in May
May is one of the excellent months to visit Bolton, with daytime temperatures of 20°C (68°F) and lows of 7°C (45°F) at night. Do note that quite a bit of rainfall is typical, averaging around 84 mm (3.3 in).
Rainfall in Bolton in May
Typically, you can expect about 10 days of rain this month, with 84 mm (3.3 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Bolton in May
If you're visiting Bolton in May, expect excellent temperatures with highs of 20°C (68°F) and overnight lows of 7°C (45°F). Conditions are often most pleasant around the middle of the day. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Bolton in May
There are approximately 230 hours of sunshine this month, resulting in mostly clear days.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Bolton.
Bolton Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
20°C (68°F)
Chance of Rain
33%
Precipitation
84 mm (3.3 in)
Rainy days
10 days
Humidity
53% *
Sunshine
230 hours *
Percentage Sunshine
50% *
* Data from: Mississauga, Canada (33 KM, 20 Miles).
Bolton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bolton - and find the best time to visit.
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Bolton in May
For Bolton in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Bolton in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping4/10 -
Outdoor sports9/10
Bolton 3-Day Forecast
More climate data for Bolton
Temperature Rainfall Sunshine Humidity
See the full Bolton climate overview or explore weather in Canada.
Popular in May
Where to go in May - average daytime high across popular destinations.
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