Saint John Weather: May
 |
Average Day Temperature: | 60.1°F |
|
Average Night Temperature: | 45.4°F |
|
Sea Water Temperature: | 44.2°F |
|
Number of Sunny Days: | 8 days |
| Sunshine Hours: | 14.3 - 15.4 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.9 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Saint John |
Sea Water
Temperature
Temperature
| Saint John |
Air Temperature in May, °F
The highest day temperature in May 2025 was 87°F. The lowest night temperature was 33°F. The average values for day and night temperatures during May were 58.7°F и 46.5°F respectivly.
Saint John Water Sea Temperature in May, °F
The average sea surface temperature in May 2025 for Saint John was 42.1°F. The maximum and minimum values were 39.2°F and 45.4°F respectively.
Sunny, Cloudy and Gloomy days
Most of the days in May are gloomy but you can also expect sunny days.
Precipitation Totals in May, in
Precipitation total in May for Saint John is 0.9 in. It makes may the least rainy month of the year.
Wind Speed in May, mph
The average wind speed in May is 7.4 mph.
Average Sunny Hours Per Day
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Saint John in May is 6.5 hours.
Saint John on the Weather Map
Canada Resorts:
NAME
F°
| Halifax |  |
+30 |
| Kingston |  |
+36 |
| Montreal |  |
+30 |
| Niagara Falls | |
+32 |
| Ottawa | |
+28 |
| Prince Edward Island | |
+26 |
| Quebec | |
+18 |
| Saint John | |
+30 |
| St. John's |  |
+30 |
| Sydney | |
+26 |
| Toronto | |
+30 |
| Vancouver |  |
+44 |
| Victoria | |
+44 |
| Winnipeg |  |
-12 |
| Yellowknife | |
-12 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Saint John
Local time: 03:26
11 jan, sunday
| 0600 |  |
28°F | W 11 mph |
| 0900 | |
28°F | W 15 mph |
| 1200 |  |
28°F | SW 12 mph |
| 1500 | |
28°F | SW 9 mph |
| 1800 | |
28°F | S 6 mph |
| 2100 | |
28°F | SE 6 mph |
12 jan, monday
| 0000 | |
26°F | SE 8 mph |
| 0300 | |
24°F | E 12 mph |