-1 to 18°C
temperature
1996 hours
sunshine per day
646 mm
rain
158 days
dry
158 days
rain
49 days
snow

Climate of Saint John’s

Saint John’s has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Saint John’s is 7° degrees and there is about 646 mm of rain in a year. It is dry for 133 days a year with an average humidity of 84% and an UV-index of 2.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -1°C and 18°C
  • Night:the average nighttime temperature is between -5°C and 14°C
  • Rain: it rains 158 days and there is a total of approximately 646 mm rainfall
  • Snow: it snows an average of 49 days per year
  • Sun hours: throughout the year there are 1996 sun hours
Maximum temperature: between -1°C and 18°C
Warmest month: 18°C in August
Coldest month: -1°C in February
Night temperature: between -5°C and 14°C
Dry days: 158 days
Days with rain: 158 days
Days with snow: 49 days
Total rain sum: 646 mm
Hours of sunshine: 1996 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Saint John’s.

Precipitation graph

This graph shows the average amount of rainfall per month for Saint John’s.

Climate table of Saint John’s

In this climate table you can see at a glance what the average weather per month is for Saint John’s. 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’s might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 0 -1 0 3 7 11 16 18 15 11 6 2
Night temp. (°C) -4 -5 -3 0 3 7 12 14 11 7 3 -1
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 73 61 55 46 40 42 38 40 45 67 64 75
Days with rain 11 8 12 14 14 13 15 13 13 17 15 13
Days with snow 11 9 8 5 2 - - - - - 5 9
Dry days 9 11 11 11 15 17 16 18 17 14 10 9
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 3 3 4 6 7 7 8 8 8 4 4 3
Wind force (Bft) 5 5 4 4 4 4 4 4 4 4 4 5
UV-index 1 1 1 2 2 4 4 4 4 2 1 1

Best time to visit Saint John’s

The best time to visit Saint John’s in Canada is August. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Saint John’s is 18°C in August and the lowest is -1°C in February.

Climate of Saint John’s by month

What is the average climate in a given month for Saint John’s? 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’s weather experiences

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