Saint John, New Brunswick, Canada Climate Change Severity

52
High
The current climate change severity in Saint John is High, with a 9.3% 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 May (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Saint John Weather Condition Changes (Historic Vs 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 +54.9%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
1332
146.1%

cloudyCloudy
3723
-37.8%

rainyRainy
5239
-25%

snowySnowy
1116
45.4%

mistyMisty
02
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 52 (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

52/100


High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Saint John experienced significant changes:

Temperature change of

+0.52 °C


Variation in annual rainfall

+95.01 %


Change in average humidity

-7.55 %


PM2.5 levels surged by

+6.17 %


Heatwave changed by

0 Day


Coldwave changed by

-3 Days


Wind speeds changed by

-2.98 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 May

Saint John Weather Forecast 30 Days (June - July 2026)
Saint John, New Brunswick, Canada


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Wed. 3, Jun.
partly cloudyPartly Cloudy

Temperature Icon17°/5°

Humidity Icon81%

Wind Icon10.1km/h
Thu. 4, Jun.
partly cloudyPartly Cloudy

Temperature Icon19°/6°

Humidity Icon82%

Wind Icon18km/h
Fri. 5, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon22°/8°

Humidity Icon80%

Wind Icon12.2km/h
Sat. 6, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon16°/9°

Humidity Icon93%

Wind Icon13.7km/h
Sun. 7, Jun.
heavy rainHeavy Rain

Temperature Icon14°/8°

Humidity Icon90%

Wind Icon23.8km/h
Mon. 8, Jun.
sunnySunny

Temperature Icon20°/6°

Humidity Icon78%

Wind Icon12.2km/h
Tue. 9, Jun.
sunnySunny

Temperature Icon19°/7°

Humidity Icon69%

Wind Icon10.8km/h
Wed. 10, Jun.
sunnySunny

Temperature Icon22°/8°

Humidity Icon64%

Wind Icon9km/h
Thu. 11, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon17°/9°

Humidity Icon79%

Wind Icon19.4km/h
Fri. 12, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon18°/10°

Humidity Icon81%

Wind Icon20.5km/h
Sat. 13, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon17°/11°

Humidity Icon83%

Wind Icon18.7km/h
Sun. 14, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon15°/10°

Humidity Icon87%

Wind Icon19.8km/h
Mon. 15, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon17°/9°

Humidity Icon80%

Wind Icon18.4km/h
Tue. 16, Jun.
moderate rain at timesModerate rain at times

Temperature Icon18°/10°

Humidity Icon76%

Wind Icon16.9km/h
Wed. 17, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon18°/10°

Humidity Icon80%

Wind Icon20.5km/h
Thu. 18, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon18°/11°

Humidity Icon82%

Wind Icon19.8km/h
Fri. 19, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon18°/11°

Humidity Icon81%

Wind Icon20.9km/h
Sat. 20, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/12°

Humidity Icon82%

Wind Icon20.5km/h
Sun. 21, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/12°

Humidity Icon81%

Wind Icon19.1km/h
Mon. 22, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/12°

Humidity Icon81%

Wind Icon18.7km/h
Tue. 23, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon18°/12°

Humidity Icon85%

Wind Icon19.8km/h
Wed. 24, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/12°

Humidity Icon85%

Wind Icon18.4km/h
Thu. 25, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon20°/13°

Humidity Icon80%

Wind Icon19.1km/h
Fri. 26, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon18°/12°

Humidity Icon83%

Wind Icon18.7km/h
Sat. 27, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/12°

Humidity Icon84%

Wind Icon20.2km/h
Sun. 28, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/12°

Humidity Icon87%

Wind Icon21.2km/h
Mon. 29, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/13°

Humidity Icon88%

Wind Icon19.1km/h
Tue. 30, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon20°/14°

Humidity Icon89%

Wind Icon18km/h
Wed. 1, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon20°/14°

Humidity Icon86%

Wind Icon17.6km/h
Thu. 2, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon19°/13°

Humidity Icon87%

Wind Icon18.7km/h
Fri. 3, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon20°/13°

Humidity Icon82%

Wind Icon19.8km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 5, Jun.

22°C


Low will be onWed. 3, Jun.

5°C

HumidityHumidity

High will be onSat. 6, Jun.

93%


Low will be onWed. 10, Jun.

64%

Wind SpeedWind Speed

High will be onSun. 7, Jun.

23.8km/h


Low will be onWed. 10, Jun.

9km/h

PrecipitationPrecipitation

High will be onSun. 7, Jun.

38.3mm


Low will be onTue. 16, Jun.

0.8mm

Ultraviolet IndexUV

High will be onThu. 4, Jun.

8


Low will be onSun. 7, Jun.

1