Weathermondo.com
United StatesThe weather in May in Saint John
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.
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.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Saint John, Utah. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2020, Saint John reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 8°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of -1°C to a highest value of 24°C.
Precipitation and snowfall
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.
Daily weather 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.
May weather comparison
| Saint John | New York | |
|---|---|---|
| Average temperature | 21°C | 22°C |
| Max. temperature | 27°C | 28°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 62 mm | 105 mm |
| Rainy days | 9 days | 14 days |
| Total snowfall | 0,3 cm | 0 cm |
| Snowy days | 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.
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.
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.
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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.
Check out the climate of Saint John for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Saint John, Utah. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Saint John
Temperature in May in Saint John over the years
Precipitation charts
These charts show the average amount of precipitation in May in Saint John, Utah. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Saint John
Total precipitation in May in Saint John over the years
Daily Snowfall in May in Saint John
Snowfall in May in Saint John per year
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.
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.