Thousand Islands National Park Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Thousand Islands National Park, Canada in May.

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Brockville

Thinking about venturing to Thousand Islands National Park, Canada this May and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Thousand Islands National Park in May

Thousand Islands National Park, Canada is a region in Canada. May in Thousand Islands National Park generally has pleasant temperatures, with moderate precipitation.

Temperatures

You can expect pleasant maximum daytime temperatures of around 20°C (68°F) and nighttime temperatures around 9°C (48°F) in Brockville.

To explore the conditions in Thousand Islands National Park, Canada in more detail, check the map below.

Precipitation

May is a moderate rainy month with an average rainfall of around 84 mm (3.3 in) in Brockville.

Average sunshine

Sunshine is generally plentiful throughout many areas. Brockville enjoys about 220 hours of sunlight, ideal for those seeking sunny weather.

Explore Thousand Islands National Park by month

Pick a month to see the average temperature, rainfall and sunshine in Thousand Islands National Park — and find the best time to visit. (based on Brockville)

January-2°C (28°F) February-3°C (27°F) March4°C (39°F) April12°C (54°F) May20°C (68°F) June23°C (73°F) This monthJuly26°C (79°F) August26°C (79°F) September22°C (72°F) October14°C (57°F) November8°C (46°F) December1°C (34°F)
Best Time to Visit Thousand Islands National Park →

Best Places to Visit in Thousand Islands National Park in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Thousand Islands National Park.

Conditions Temperatures Precipitation
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).

Popular Destinations in Thousand Islands National Park

What is the weather like in May for the most popular destinonation in Thousand Islands National Park, Canada?

Brockville

In May Brockville generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« April
May
June »
April
May
June
Max temperature
12°C (54°F)
20°C (68°F)
23°C (73°F)
Min temperature
2°C (36°F)
9°C (48°F)
14°C (57°F)
Monthly sun hours
162 hours
220 hours
245 hours
Monthly rainfall
91 mm (3.6 in)
84 mm (3.3 in)
113 mm (4.4 in)
Monthly rainy days
14 days
13 days
15 days
Weather conditions
unpleasant
perfect
pleasant
Climate in Brockville →

Is your destination not in the list? Have a look at all destinations in Thousand Islands National Park, in Canada.

Thousand Islands National Park weather in May: frequently asked questions

What is the weather like in Thousand Islands National Park, Canada in May?

In May, Thousand Islands National Park, Canada generally has perfect weather conditions. Brockville sees daytime temperatures near 20°C (68°F), with nights cooling to roughly 9°C (48°F).

What is the average temperature in Thousand Islands National Park, Canada in May?

In Brockville, the average daytime high in May is 20°C (68°F), while nighttime temperatures drop to around 9°C (48°F).

Does Thousand Islands National Park, Canada get a lot of rain in May?

Rain is generally moderate to light in Thousand Islands National Park, Canada during May, with Brockville averaging close to 84 mm (3.3 in).

Is May a Good Time to Visit Thousand Islands National Park, Canada?

We consider May to be one of the best times to travel to Thousand Islands National Park, Canada. Typically, the climate in Brockville is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May, July, August and September offering mostly perfect weather in Brockville. On the other hand, the months of January, February, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Thousand Islands National Park.

Weather and climate has detailed information for every country in the world. Are you going to Canada? Get detailed historical weather averages for many cities in Canada.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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