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New Brunswick weather in May

Planning a journey to New Brunswick this May and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in New Brunswick in May?

New Brunswick is a region in Canada. May in New Brunswick generally has temperatures that range from cold to pleasant, with precipitation levels ranging from moderate to high.

During the day the temperature is cold in Grand Manan Island at 11°C and pleasant in Fredericton at 18°C. As night falls, temperatures generally drop to 6°C in Fredericton and 7°C in Grand Manan Island.

In May, precipitation varies across different areas. From moderate rainfall in Edmundston with an average of 85 mm to high rainfall in North Head with 118 mm. Meanwhile, Moncton enjoys close to 207 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For specific regional insights in New Brunswick for May, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our New Brunswick climate page.

Where to go in New Brunswick in May

Find the average weather conditions in May for the most popular destinations in New Brunswick on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in New Brunswick

What is the weather like in May for the 5 most popular destinations in New Brunswick?

Average weather in Moncton

In May Moncton generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 5°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Moncton
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
10°C 
-1°C 
165 hours 
92 mm 
14 days 
poor 
17°C 
5°C 
207 hours 
89 mm 
14 days 
June   >> June
>>  
22°C 
10°C 
232 hours 
98 mm 
13 days 
Climate in Moncton

Average weather in Grand Manan Island

In May Grand Manan Island generally has low temperatures with maximum daytime temperatures around 11°C, minimum nighttime temperatures around 7°C and high monthly rainfall. So on average the conditions are poor that month.

Grand Manan Island
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
7°C 
2°C 
113 mm 
11 days 
poor 
11°C 
7°C 
113 mm 
12 days 
poor 
June   >> June
>>  
15°C 
10°C 
121 mm 
13 days 
Climate in Grand Manan Island

Average weather in Saint John

In May Saint John generally has moderate temperatures with maximum daytime temperatures around 13°C, minimum nighttime temperatures around 6°C and high monthly rainfall. So on average the conditions are poor that month.

Saint John
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
8°C 
1°C 
112 mm 
13 days 
poor 
13°C 
6°C 
108 mm 
14 days 
poor 
June   >> June
>>  
17°C 
11°C 
116 mm 
13 days 
Climate in Saint John

Average weather in Fredericton

In May Fredericton generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 6°C and high monthly rainfall. So on average the conditions are tolerable that month.

Fredericton
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
11°C 
-0°C 
95 mm 
12 days 
18°C 
6°C 
102 mm 
14 days 
June   >> June
>>  
23°C 
11°C 
106 mm 
13 days 
Climate in Fredericton

Average weather in Saint Andrews

In May Saint Andrews generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 7°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Saint Andrews
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
10°C 
1°C 
98 mm 
10 days 
poor 
16°C 
7°C 
91 mm 
12 days 
June   >> June
>>  
21°C 
11°C 
100 mm 
11 days 
Climate in Saint Andrews

Is your destination not in the list? Have a look at other destinations in New Brunswick, in Canada.

Is May the best time to visit New Brunswick?

In our opinion, May is a good time to visit New Brunswick with overall tolerable weather in Moncton. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit New Brunswick is in June, July, August and September with generally perfect weather in Moncton. In contrast, January, February, March, April, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in New Brunswick. Interested in the weather conditions in a specific month? Select the month below.

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  • 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 climate conditions. Find out where to go with our weather planner.