Normal weather for Saint John in May
It's pleasantly warm in May in Saint John with an average temperature of 21°C. Temperatures this month range from a low of 17°C to a high of 27°C. At night, you can expect temperatures between 7°C and 12°C.
In May, there is an average of 62 mm of precipitation, spread over 9 days. Of the total precipitation, about 0,3 cm falls as snow in May. The wind speed is around 4 Bft, mostly coming from the Southwest.
Saint John in May |
New York | ||
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21°C | 22°C | |
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27°C | 28°C | |
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17°C | 17°C | |
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62 mm | 105 mm | |
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9 days | 14 days | |
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0,3 cm | 0 cm | |
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1 day | 0 days |
Start of May
The month of May starts in Saint John with mild temps, averaging around 20°C during the day and nights around 9°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
Mid May
By mid-May, daytime temps rise to around 21°C, with nights around 10°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
Since it cools down at night, it’s a good idea to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
End of May
By the end of May, the average daytime temperature in Saint John is around 23°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Saint John?
Looking for great weather? May is a good time to be in Saint John. The temperatures are nice, and there’s not too much rain.
Temperature records for Saint John in May
Check out the climate of Saint John for all months and discover the best travel time
Daily Temperature in May in Saint John
This chart shows the average daily high and low temperatures in May for Saint John, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Saint John
The chart below shows the average daily precipitation in May for Saint John, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 9 days of precipitation in Saint John.
Daily Snowfall in May in Saint John
This chart shows the average daily snowfall in May in Saint John, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in May.
Daily UV Index in May in Saint John
This chart shows the average daily UV index in May in Saint John, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Saint John Over the Years
This chart shows the average temperature in May in Saint John, measured in degrees Celsius, over the past few years.
Total Precipitation in May in Saint John Over the Years
This chart shows the average precipitation in May in Saint John, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in May in Saint John per year
This chart shows the average snowfall in May in Saint John, measured in centimeters, over the past few years.
Daily Climate in May for Saint John
Click on any day in May to get detailed info about the usual weather on that day in Saint John. Check out the historical temperatures and precipitation over the past 10 years on this day.
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Weather experiences in May in Saint John
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Average Weather in Saint John by Month
Click on a month below to see detailed weather info for Saint John. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Saint John for all months at once