St Catharines Weather Conditions
Current Temperature Level

23 °C

Pleasant

SunnyFeels Like 25°CHumidity 47%

28 AQI

PM2.5 : 5PM10 : 21

Air quality index is: Good

Last Updated: 2025-09-29 18:15 (Local Time)

Map

St Catharines

St Catharines Weather Parameters

Wind Speed

6 km/h

Light breeze

Gust Speed

3 m/s

Direction

12° NNE

Cloud Cover

25 %

Visibility

24 km

Precipitation

0 mm

Pressure

1020

1021

1022

1023

1024

1025

1026

1027

1028

1029

1030

1031

1022 mb

High

940956

981

1005

Moderate

1013

1030

1046+

UV Index

UV Index0

Low

Suggestions for

TodaySt Catharines

29 Sep.

Umbrella• Optional

Clothing• Layering Must

Driving• Enjoy Driving

Sunscreen• Apply

Trending in Canada

Air Quality Monitoring for Logistics: Smarter Deliveries with Data

St Catharines 10-Days Weather Forecast

See Monthly

Today

17°C

65 %

Tuesday

15°C

76 %

Wednesday

12°C

75 %

Thursday

12°C

65 %

Friday

16°C

55 %

Saturday

18°C

64 %

Sunday

20°C

61 %

Monday

20°C

63 %

Tuesday

18°C

64 %

Wednesday

15°C

49 %

Today29 Sep

Sunny

Clear Sky with temperature at 17 °C and humidity will be at 65% with 9.4 km/h winds.

25°C / 11°C

Humi.65 %

Prec.0 mm

Sunrise

07:12 AM

11hrs 49min

Sunset

07:01 PM

Temperature (°C)

12 AMTime11 PM

Time

Condition

Temp

Humidity

Wind Speed & Dir.

12 AM

Clear

16 °C

72 %

5.4 kmph / NNE

Feels 15.9 °C

Cover 0 %

Visibility 10 km

1 AM

Clear

14 °C

73 %

5.4 kmph / NNE

Feels 14.2 °C

Cover 0 %

Visibility 10 km

2 AM

Clear

13 °C

61 %

7.2 kmph / NE

Feels 13.3 °C

Cover 0 %

Visibility 10 km

3 AM

Clear

13 °C

74 %

7.9 kmph / NE

Feels 12.5 °C

Cover 0 %

Visibility 10 km

4 AM

Clear

12 °C

75 %

8.6 kmph / ENE

Feels 12 °C

Cover 0 %

Visibility 10 km

5 AM

Clear

12 °C

75 %

8.3 kmph / E

Feels 10.8 °C

Cover 0 %

Visibility 10 km

6 AM

Clear

11 °C

88 %

8.3 kmph / ESE

Feels 10.1 °C

Cover 9 %

Visibility 10 km

7 AM

Clear

11 °C

85 %

7.2 kmph / SSE

Feels 10.2 °C

Cover 2 %

Visibility 10 km

8 AM

Sunny

13 °C

91 %

0.1

2.9 kmph / SE

Feels 12.2 °C

Cover 4 %

Visibility 10 km

9 AM

Sunny

15 °C

86 %

0.6

2.9 kmph / E

Feels 15 °C

Cover 7 %

Visibility 10 km

10 AM

Sunny

18 °C

77 %

1.7

2.5 kmph / ENE

Feels 17.9 °C

Cover 5 %

Visibility 10 km

11 AM

Sunny

20 °C

62 %

3.1

3.6 kmph / NE

Feels 20 °C

Cover 3 %

Visibility 10 km

12 PM

Sunny

22 °C

56 %

4.4

8.3 kmph / NNE

Feels 23.4 °C

Cover 3 %

Visibility 10 km

1 PM

Sunny

23 °C

61 %

8.3 kmph / N

Feels 24.6 °C

Cover 0 %

Visibility 10 km

2 PM

Sunny

24 °C

58 %

4.8

9.4 kmph / N

Feels 25.2 °C

Cover 0 %

Visibility 10 km

3 PM

Sunny

25 °C

56 %

3.7

7.6 kmph / N

Feels 25.5 °C

Cover 0 %

Visibility 10 km

4 PM

Sunny

23 °C

53 %

2.3

7.2 kmph / N

Feels 25 °C

Cover 0 %

Visibility 10 km

5 PM

Sunny

23 °C

48 %

1.1

6.5 kmph / N

Feels 24.6 °C

Cover 0 %

Visibility 10 km

6 PM

Sunny

23 °C

47 %

0.3

5.8 kmph / NNE

Feels 22.3 °C

Cover 25 %

Visibility 24 km

7 PM

Sunny

19 °C

49 %

4.3 kmph / NE

Feels 19.3 °C

Cover 0 %

Visibility 10 km

8 PM

Clear

18 °C

52 %

4 kmph / NE

Feels 17.7 °C

Cover 0 %

Visibility 10 km

9 PM

Clear

17 °C

56 %

5 kmph / E

Feels 16.6 °C

Cover 0 %

Visibility 10 km

10 PM

Clear

16 °C

55 %

7.2 kmph / SE

Feels 15.6 °C

Cover 0 %

Visibility 10 km

11 PM

Clear

15 °C

57 %

6.5 kmph / SSE

Feels 14.5 °C

Cover 0 %

Visibility 10 km

Today

17°C

65 %

Tuesday

15°C

76 %

Wednesday

12°C

75 %

Thursday

12°C

65 %

Friday

16°C

55 %

Saturday

18°C

64 %

Sunday

20°C

61 %

Monday

20°C

63 %

Tuesday

18°C

64 %

Wednesday

15°C

49 %

Temp19 °C

ConditionSunny

Humidity49 %

Feels19.3 °C

Cover0 %

Visibility10 km

Wind Speed & Dir.4.3 kmph / NE

UV0

St Catharines 30-Days (September 2025) Weather Forecast

See Hourly

Sun.

Mon.

Tue.

Wed.

Thu.

Fri.

Sat.

1Mon.

27°11 °C

2Tue.

28°13 °C

3Wed.

29°13 °C

4Thu.

21°14 °C

5Fri.

27°11 °C

6Sat.

21°11 °C

7Sun.

20°12 °C

8Mon.

19°9 °C

9Tue.

24°8 °C

10Wed.

25°11 °C

11Thu.

24°12 °C

12Fri.

26°12 °C

13Sat.

26°12 °C

14Sun.

24°13 °C

15Mon.

24°12 °C

16Tue.

27°11 °C

17Wed.

24°12 °C

18Thu.

28°13 °C

19Fri.

23°14 °C

20Sat.

23°10 °C

21Sun.

31°12 °C

22Mon.

27°18 °C

23Tue.

28°18 °C

24Wed.

26°16 °C

25Thu.

22°18 °C

26Fri.

27°16 °C

27Sat.

29°14 °C

28Sun.

27°16 °C

29Today

26°11 °C

30Tue.

20°10 °C

SeptemberWeather Overview

No. of days:

Sunny

Cloudy

Rainy

Snowy

The monthly weather averages in St Catharines consist of 15 sunny days, 10 cloudy days, 1 rainy days, and 0 snowy days.

St Catharines's Locations Weather Conditions

Locations

Temp

Condition

Humi.

Wind Speed & Direction

St Catharines

23 °C

Sunny

47%

0.3

5.8 kmph / NNE

Canada's Hottest Cities - September 2025

Hottest

Coldest

RankCityTemperatureWeather ConditionHumidityUVWind Speed & Dir.

Redcliff, Canada

31 °C

Partly cloudy

19%

34.2 kmph / S

Medicine Hat, Canada

31 °C

Partly cloudy

19%

34.2 kmph / S

Swift Current, Canada

28 °C

Sunny

28%

1.8

31.3 kmph / SE

Lethbridge, Canada

28 °C

Partly cloudy

20%

2.1

23.8 kmph / SSE

Sainte Cecile de Masham, Canada

27 °C

Sunny

26%

0.9

9.4 kmph / W

Gatineau, Canada

27 °C

Sunny

26%

0.2

7.9 kmph / W

Kerrobert, Canada

27 °C

Sunny

26%

1.6

36.4 kmph / SSE

Red Deer, Canada

27 °C

Partly cloudy

25%

1.5

28.1 kmph / S

Mont Saint Michel, Canada

26 °C

Sunny

30%

0.8

11.9 kmph / W

10.

Mont Laurier, Canada

26 °C

Sunny

30%

0.2

7.2 kmph / WSW

Last Updated: 29 Sept 2025, 10:20 PM

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Experience precise, real-time weather monitoring with our Automatic Weather Station, reliable source for accurate meteorological data.

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Experience precise, real-time weather monitoring with our Automatic Weather Station, reliable source for accurate meteorological data.

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St Catharines Weather ConditionsCurrent Temperature Level

St Catharines Weather Parameters

Trending in Canada

St Catharines 10-Days Weather Forecast

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SeptemberWeather Overview

No. of days:

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St Catharines Weather Conditions
Current Temperature Level