Saint John, New Brunswick, Canada Climate Change Severity

57
High
The current climate change severity in Saint John is High, with a 6.04% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jan. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Saint John Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Saint John temperature has changed by around -0.3%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jan. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
36
100%
cloudyCloudy
77
0%
rainyRainy
93
-66.6%
snowySnowy
45
25%
mistyMisty
01
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, Saint John has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Saint John experienced significant changes:

Temperature change of

+0.01 °C

Variation in annual rainfall

+107.6 %

Change in average humidity

-11.6 %

PM2.5 levels surged by

+18.1 %

Heatwave changed by

0 day(s)

Coldwave changed by

-0.8 day(s)

Wind speeds changed by

-3.2 km/h

These indicators show that Saint John is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jan.

Saint John Weather Forecast 30 Days (February - March 2026)
Saint John, New Brunswick, Canada

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Tue. 10, Feb.
sunnySunny
Temperature Icon2°/-12°
Humidity Icon67%
Wind Icon15km/h
Wed. 11, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-11°
Humidity Icon91%
Wind Icon19km/h
Thu. 12, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-7°
Humidity Icon78%
Wind Icon24km/h
Fri. 13, Feb.
sunnySunny
Temperature Icon0°/-11°
Humidity Icon68%
Wind Icon25km/h
Sat. 14, Feb.
partly cloudyPartly Cloudy
Temperature Icon1°/-8°
Humidity Icon82%
Wind Icon16km/h
Sun. 15, Feb.
overcastOvercast
Temperature Icon2°/-5°
Humidity Icon86%
Wind Icon14km/h
Mon. 16, Feb.
mistMist
Temperature Icon2°/-5°
Humidity Icon83%
Wind Icon16km/h
Tue. 17, Feb.
sunnySunny
Temperature Icon2°/-4°
Humidity Icon73%
Wind Icon21km/h
Wed. 18, Feb.
partly cloudyPartly Cloudy
Temperature Icon0°/-5°
Humidity Icon62%
Wind Icon19km/h
Thu. 19, Feb.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/0°
Humidity Icon94%
Wind Icon25km/h
Fri. 20, Feb.
patchy rain possiblePatchy rain nearby
Temperature Icon5°/0°
Humidity Icon93%
Wind Icon26km/h
Sat. 21, Feb.
partly cloudyPartly Cloudy
Temperature Icon-5°/-9°
Humidity Icon62%
Wind Icon34km/h
Sun. 22, Feb.
overcastOvercast
Temperature Icon-11°/-14°
Humidity Icon53%
Wind Icon27km/h
Mon. 23, Feb.
sunnySunny
Temperature Icon-7°/-15°
Humidity Icon47%
Wind Icon25km/h
Tue. 24, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-6°
Humidity Icon85%
Wind Icon28km/h
Wed. 25, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-5°
Humidity Icon83%
Wind Icon30km/h
Thu. 26, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-8°
Humidity Icon82%
Wind Icon27km/h
Fri. 27, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-8°
Humidity Icon81%
Wind Icon28km/h
Sat. 28, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-6°
Humidity Icon83%
Wind Icon31km/h
Sun. 1, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-7°
Humidity Icon82%
Wind Icon28km/h
Mon. 2, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon2°/-6°
Humidity Icon85%
Wind Icon31km/h
Tue. 3, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-8°
Humidity Icon81%
Wind Icon27km/h
Wed. 4, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-2°/-8°
Humidity Icon80%
Wind Icon27km/h
Thu. 5, Mar.
moderate snowModerate snow
Temperature Icon0°/-7°
Humidity Icon80%
Wind Icon27km/h
Fri. 6, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-6°
Humidity Icon81%
Wind Icon26km/h
Sat. 7, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon2°/-5°
Humidity Icon83%
Wind Icon28km/h
Sun. 8, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon2°/-4°
Humidity Icon84%
Wind Icon28km/h
Mon. 9, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon2°/-5°
Humidity Icon81%
Wind Icon25km/h
Tue. 10, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon2°/-4°
Humidity Icon80%
Wind Icon21km/h
Wed. 11, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-3°
Humidity Icon83%
Wind Icon27km/h
Thu. 12, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon4°/-3°
Humidity Icon83%
Wind Icon26km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 19, Feb.

5.7°C

Low will be onMon. 23, Feb.

-14.6°C

HumidityHumidity

High will be onThu. 19, Feb.

94%

Low will be onMon. 23, Feb.

47%

Wind SpeedWind Speed

High will be onSat. 21, Feb.

33.5km/h

Low will be onSun. 15, Feb.

14.4km/h

PrecipitationPrecipitation

High will be onWed. 11, Feb.

11.7mm

Low will be onSat. 21, Feb.

0.01mm

Ultraviolet IndexUV

High will be onTue. 17, Feb.

2

Low will be onSun. 15, Feb.

1

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