Climate of Saint John
Saint John has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Saint John is 10° degrees and there is about 295 mm of rain in a year. It is dry for 199 days a year with an average humidity of 82% and an UV-index of 3.
Climate averages for the whole year
- Day: the average daily temperature during the day is between -2°C and 21°C
- Night:the average nighttime temperature is between -9°C and 15°C
- Sea temperature: the sea temperature is between 4°C and 14°C
- Rain: it rains 116 days and there is a total of approximately 295 mm rainfall
- Snow: it snows an average of 34 days per year
- Sun hours: throughout the year there are 2324 sun hours
Maximum temperature: | between -2°C and 21°C |
Warmest month: | 21°C in July |
Coldest month: | -2°C in January |
Night temperature: | between -9°C and 15°C |
Sea temperature: | between 4°C and 14°C |
Dry days: | 215 days |
Days with rain: | 116 days |
Days with snow: | 34 days |
Total rain sum: | 295 mm |
Hours of sunshine: | 2324 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Saint John.
Precipitation graph
This graph shows the average amount of rainfall per month for Saint John.
Climate table of Saint John
In this climate table you can see at a glance what the average weather per month is for Saint John. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Saint John might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | -2 | -2 | 2 | 7 | 13 | 17 | 21 | 21 | 18 | 12 | 7 | 1 |
Night temp. (°C) | -9 | -8 | -4 | 1 | 6 | 10 | 14 | 15 | 12 | 7 | 2 | -4 |
Water temp. (°C) | 8 | 5 | 4 | 6 | 8 | 12 | 14 | 14 | 14 | 13 | 11 | 9 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 36 | 21 | 24 | 18 | 26 | 26 | 19 | 17 | 17 | 26 | 31 | 34 |
Days with rain | 6 | 5 | 9 | 13 | 13 | 13 | 11 | 10 | 9 | 10 | 8 | 9 |
Days with snow | 7 | 7 | 10 | 3 | - | - | - | - | - | - | 2 | 5 |
Dry days | 18 | 16 | 12 | 14 | 18 | 17 | 20 | 21 | 21 | 21 | 20 | 17 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 4 | 4 | 5 | 7 | 8 | 8 | 9 | 10 | 8 | 5 | 4 | 4 |
Wind force (Bft) | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 |
UV-index | 2 | 2 | 2 | 2 | 4 | 5 | 5 | 5 | 4 | 2 | 2 | 2 |
Best time to visit Saint John
The best time to visit Saint John in Canada is from July through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Saint John is 21°C in July and the lowest is -2°C in January. The average water temperature is between 4°C and 14°C.
Climate of Saint John by month
What is the average climate in a given month for Saint John? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Saint John weather experiences
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