-2 to 21°C
temperature
2324 hours
sunshine per day
295 mm
rain
215 days
dry
116 days
rain
34 days
snow

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

Do you want to go to Saint John?

These are the travel companies where you can book a trip to Saint John:

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

Have you been to in Saint John?

Leave your Saint John weather experience for a chance to win $150!

Your email will not appear with the review and will not be passed on to third parties.
Seen a mistake?

Email us, we are grateful to you.