Saint John weather and climate in 2024
Day
-2 °C
Night
-11 °C
Sea
3 °C
Precipitation
104 mm
in month
Rainy days
12 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
74 %
Day
-2 °C
Night
-11 °C
Sea
3 °C
Precipitation
104 mm
in month
Rainy days
12 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
74 %
Overview: Saint John
Weather charts for Saint John
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Weather overview for Saint John
Weather overview
Saint John (Canada) in general has a mild continental climate. Temperatures during the day are in the range from -2 °C (28 °F) in January to 23 °C (74 °F) in July. The highest night temperatures could be experienced in July with 14 °C (58 °F), the lowest in January with -11 °C (12 °F). The least rainy month in Saint John is September with its 10 days of rain, the rainiest month is December, when it rains 13 days.
January weather
The day temperature is on its minimum, with its value being -2 °C (28 °F) in Saint John, and the night temperature is on its minimum as well, the value of this measure is -11 °C (12 °F). The number of rainy days descent's start could be observed, the value of this measure is 12 days, while the descent of the rainfall amount can be observed, with its value being 104 mm (4.09 in). The number of sun hours (without clouds) starts to rise, the value of this measure is 3 hours.
February weather
The day temperature rise's start could be observed, with its value of -1 °C (30 °F) in Saint John, and the night temperature starts to rise too, with its value of -10 °C (13 °F). The descent of the rainfall amount can be observed, with its value of 85 mm (3.35 in), and the number of rainy days continues to descent as well, the value of this measure is 11 days. The rise of the number of sun hours (without clouds) can be observed, with its value being 4 hours. The humidity reaches its minimum in this month.
March weather
The rise of the day temperature can be observed, with its value being 3 °C (37 °F) in Saint John, and the night temperature continues to rise as well, its value is -6 °C (22 °F). The beginning of the rise of the number of rainy days could be noticed, and the beginning of the rise of the rainfall amount could be noticed too, with its value being 108 mm (4.24 in). The number of sun hours (without clouds) continues to rise, with its value being 5 hours.
April weather
The day temperature rises similarly to the previous month, with its value of 9 °C (49 °F) in Saint John, and the night temperature continues to rise as well, the value of this measure is 1 °C (33 °F). The rainfall amount starts to descent in this month. The rise of the number of sun hours (without clouds) can be observed, the value of this measure is 5 hours.
May weather
The beginning of the rise of the number of rainy days could be noticed, its value is 12 days in Saint John, and the rainfall amount starts to rise too, with its value of 105 mm (4.14 in). The rise of the day temperature can be observed, and the night temperature rises similarly to the previous month as well, with its value of 6 °C (42 °F). The number of sun hours (without clouds) rises similarly to the previous month.
June weather
The tourist season slowly starts in Saint John. The number of rainy days descent's start could be observed, its value is 12 days, and the beginning of the descent of the rainfall amount could be noticed as well, the value of this measure is 100 mm (3.92 in). The night temperature rises similarly to the previous month, the value of this measure is 11 °C (52 °F), and the day temperature rises similarly to the previous month too, with its value of 20 °C (68 °F). The rise of the number of sun hours (without clouds) can be observed, its value is 7 hours.
July weather
The tourist season is close to its peak in Saint John. The day temperature is on its maximum, with its value of 23 °C (74 °F), and the maximum of the night temperature is observable too in this month. The rainfall amount descents similarly to the previous month, its value is 89 mm (3.51 in). The number of sun hours (without clouds) reaches its maximum in July. The wind speed is on its minimum, the value of this measure is 3.
August weather
The ongoing tourist season is noticeable in Saint John. The number of rainy days descent's start could be observed, with its value of 10 days, while the minimum of the rainfall amount can be noticed, the value of this measure is 75 mm (2.97 in).
September weather
The beginning of the descent of the day temperature could be noticed, with its value being 19 °C (66 °F) in Saint John, and the night temperature descent's start could be observed too in this month. There is pending tourist season. The number of rainy days is on its minimum, while the rainfall amount rise's start could be observed, with its value of 105 mm (4.12 in). The humidity reaches its maximum, its value is 80 %.
October weather
The number of rainy days starts to rise, the value of this measure is 11 days in Saint John, while the rainfall amount rises similarly to the previous month, with its value being 119 mm (4.67 in). The day temperature continues to descent, with its value being 13 °C (56 °F), and the descent of the night temperature can be observed as well. The descent of the number of sun hours (without clouds) can be observed, with its value of 5 hours.
November weather
The descent of the day temperature can be observed in Saint John, and the night temperature continues to descent too, the value of this measure is 0 °C (32 °F). The number of rainy days continues to rise, the value of this measure is 13 days, while the maximum of the rainfall amount can be noticed, with its value being 129 mm (5.10 in). The number of sun hours (without clouds) continues to descent, the value of this measure is 3 hours.
December weather
The descent of the day temperature can be observed, with its value of 1 °C (34 °F) in Saint John, and the descent of the night temperature can be observed too. The number of rainy days is on its maximum, with its value being 13 days, while the rainfall amount descent's start could be observed, the value of this measure is 121 mm (4.76 in). The number of sun hours (without clouds) is on its minimum, its value is 3 hours. The maximum of the wind speed is observable, with its value of 5.
FAQs
How many hours of sun to expect in May in Saint John?
In May in Saint John, you can expect around 6 hours of sunshine. An increase of 1 hour compared to the previous month. This is 22 % increase of this indicator.
What is the air temperature in Saint John in June at night?
The average night temperature in June in Saint John is 11 °C (52 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold. This indicator is higher by 5 °C (41 °F) than in the previous month.
Is there a wet season in Saint John in July?
No, there is no wet season in July in Saint John - you can expect 11 days of rain during the month.
What is the temperature in Saint John during the day in August?
The average daily temperature in August in Saint John is 23 °C (74 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
Is September a good month to visit Saint John?
There are good conditions for visiting in September in Saint John. You can expect just 10 days of rain during the month, taking an umbrella is not necessary. There are some people, who may feel a slight chill at 19 °C (66 °F), but others will feel perfectly fine. The temperature of 10 °C (50 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
Is there a dry season in October in Saint John?
No, October is not a dry month in Saint John, expect rain approximately 11 days in a month.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.