Saint John in may: average Weather, Temperature and Climate
Weather in Saint John in may 2025
The weather in Saint John in the month of may comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
tolerable weather 11.5cm
Weather at 6am
49°F
Clear/Sunny
27% of time
27%
22%
13%
Weather at 12pm
56°F
Clear/Sunny
32% of time
25%
22%
14%
Weather at 6pm
50°F
Clear/Sunny
29% of time
24%
20%
15%
Weather at 3am
45°F
24%
23%
18%
14%
Evolution of daily average temperature and precipitation in Saint John in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Saint John in may.
The climate of Saint John in may is tolerable
The climate in may in Saint John is wet (with 4in of precipitation over 6 days). The situation is deteriorating compared to the previous month since in april there is an average of 3.3in of rainfall over 6 days.
The climate is fairly cold there this month, but it is endurable when dressing cosy. Temperatures are up to 56°F. In the morning the temperature drops to 49°F. Thus, the mean temperature average on this month of may in Saint John is 52°F. These temperatures are far removed from those records observed in Saint John in the month of may with a maximum record of 72°F in 2020 and a minimum record of 34°F in 2020. You can expect to have about 2 days with temperatures above 65°F, or 6% of the month.
On this month of may, day length in Saint John is generally 14:54. The sun rises at 04:54 and sunset is at 19:48.
With a correct climate, the month of may is okay (but not the best) to go in that area.
Saint John: another month?
If you can push back the dates of your trip, we advise you to go in june to Saint John. more information
May: another location in Canada?
If you want to go to Canada in may, there are destinations with better weather than Saint John:
In may, Ottawa, Quebec City, Toronto, Niagara Falls (Ontario), Brampton and Victoria have good weather.
Seasonal average climate and temperature of Saint John in may
Check below seasonal norms These statistics are set from the weather statements of the last years of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 52°F | ||||
| Highest temperature | 56°F | ||||
| Lowest temperature | 49°F | ||||
| Highest record temperature | 72°F (2020) | ||||
| Lowest record temperature | 34°F (2020) | ||||
| Number of days at +65°F | 2 day(s) (6%) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Sea temperature | |||||
| Average sea temperature | 44°F | ||||
| Lowest sea temperature | 40°F | ||||
| Highest sea temperature | 47°F | ||||
| Wind | |||||
| Wind speed | 20km/h | ||||
| Wind temperature | 45°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4in | ||||
| Number of days with rainfall | 6 day(s) (20%) | ||||
| Record daily rainfall | 3.4in (2017) | ||||
| Snowfall | 11.5cm | ||||
| Other climate data | |||||
| Humidity | 85% | ||||
| Visibility | 8.74km | ||||
| Cloud cover | 52% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 13 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:54 | ||||
| Time of sunset | 19:48 | ||||
| Length of day | 14:54 | ||||
| Our opinion about the weather in may | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last may?
Here is the day by day recorded weather in Saint John in may 2024:
38°F to 56°F
43°F to 56°F
41°F to 54°F
41°F to 56°F
38°F to 61°F
45°F to 54°F
47°F to 63°F
41°F to 59°F
41°F to 54°F
36°F to 50°F
41°F to 54°F
38°F to 52°F
43°F to 61°F
45°F to 50°F
49°F to 63°F
56°F to 63°F
49°F to 72°F
52°F to 67°F
52°F to 63°F
50°F to 76°F
56°F to 77°F
58°F to 77°F
58°F to 67°F
61°F to 76°F
49°F to 65°F
52°F to 67°F
43°F to 65°F
58°F to 59°F
58°F to 68°F
50°F to 68°F
47°F to 63°F
Map: other cities in Canada in may
Cities near Saint John:
| Fredericton in may | good weather |
| Fundy National Park in may | tolerable weather |
| Moncton in may | tolerable weather |
| Yarmouth in may | tolerable weather |
| Miramichi in may | tolerable weather |
| Hebron (Prince Edward Island) in may | tolerable weather |
| Halifax in may | bad weather |
| Charlottetown in may | bad weather |
| Bathurst in may | tolerable weather |
| Cape Breton Island in may | very bad weather |
| Quebec City in may | good weather |
| Sydney in may | very bad weather |
Click over cities on the map for information about the weather in may.
Saint John
perfect weather
good
tolerable
bad
very bad
Weather data for Saint John in may:
Weather data for Saint John for may are derived from an average of the weather forecast since 2009 in Saint John. There is a margin of error and these forecasts are to be considered as general information only. The weather in Saint John can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Saint John.