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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Saint Catharines, Canada, is a freezing cold winter month, with temperature in the range of an average low of -6.1°C (21°F) and an average high of -1.4°C (29.5°F). January tends to be the coldest month, with temperatures averaging a daily high of -1.4°C (29.5°F) and a low of -6.1°C (21°F). Weather in January »
Weather in February
February, the last month of the winter in Saint Catharines, is another freezing cold month, with an average temperature varying between -5.5°C (22.1°F) and -0.5°C (31.1°F). With the onset of February, the average high-temperature registers at a still freezing cold -0.5°C (31.1°F), subtly different from January's -1.4°C (29.5°F). Weather in February »
Weather in March
March, the first month of the spring in Saint Catharines, is a wintry month, with temperature in the range of an average high of 3.8°C (38.8°F) and an average low of -1.5°C (29.3°F). Saint Catharines's March weather indicates a minor increase in high-temperatures, edging from February's subzero cold -0.5°C (31.1°F) to an icy 3.8°C (38.8°F). Weather in March »
Weather in April
April in Saint Catharines, Canada, is a frosty spring month, with an average temperature fluctuating between 3.6°C (38.5°F) and 9.4°C (48.9°F). The arrival of April brings an increase in high-temperatures, moving from an icy 3.8°C (38.8°F) in March to a chilly 9.4°C (48.9°F). Weather in April »
Weather in May
May, the last month of the spring in Saint Catharines, is a comfortable month, with temperature in the range of an average low of 9.3°C (48.7°F) and an average high of 16.2°C (61.2°F). May brings a temperature increase, with average high-temperatures moving from April's chilly 9.4°C (48.9°F) to an enjoyable 16.2°C (61.2°F). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Saint Catharines, Canada, with an average temperature varying between 14.3°C (57.7°F) and 20.9°C (69.6°F). June witnesses a minor rise in the average high-temperature, transitioning from a refreshing 16.2°C (61.2°F) in May to an agreeable 20.9°C (69.6°F). Weather in June »
Weather in July
July is a warm summer month in Saint Catharines, Canada, with an average temperature ranging between min 18.6°C (65.5°F) and max 24.8°C (76.6°F). Saint Catharines witnesses the warmest weather in July, with temperatures averaging a high of 24.8°C (76.6°F) and a low of 18.6°C (65.5°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Saint Catharines, Canada, with an average temperature fluctuating between 18.5°C (65.3°F) and 24.6°C (76.3°F). As Saint Catharines welcomes August, the average high-temperature stabilizes at a still moderately hot 24.6°C (76.3°F), showing little deviation from July's 24.8°C (76.6°F). Weather in August »
Weather in September
September, the first month of the autumn in Saint Catharines, is also an agreeable month, with an average temperature varying between 15.5°C (59.9°F) and 21.5°C (70.7°F). In the transition to September, Saint Catharines observes a minor drop in the average high-temperature, shifting from a moderately hot 24.6°C (76.3°F) in August to a pleasant 21.5°C (70.7°F). Weather in September »
Weather in October
October, the same as September, in Saint Catharines, Canada, is a moderate autumn month, with an average temperature ranging between max 14.4°C (57.9°F) and min 9.6°C (49.3°F). The move into October indicates a reduction in the average high-temperature, down from September's pleasant 21.5°C (70.7°F) to a mild 14.4°C (57.9°F). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Saint Catharines, Canada, with temperature in the range of an average low of 3.1°C (37.6°F) and an average high of 7.8°C (46°F). The transition into November involves a decrease in the average high-temperature, falling from a mild 14.4°C (57.9°F) in October to a chilly 7.8°C (46°F). Weather in November »
Weather in December
December, the first month of the winter in Saint Catharines, is also a wintry month, with an average temperature varying between 2.4°C (36.3°F) and -1.5°C (29.3°F). During the transition into December, Saint Catharines observes a decrease in the average high-temperature, falling from a frosty 7.8°C (46°F) in November to an icy 2.4°C (36.3°F). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Saint Catharines?
January proves to be the coldest month in Saint Catharines, Canada, recording an average maximum temperature of -1.4°C (29.5°F) and a minimum temperature of -6.1°C (21°F).
What is the most humid month in Saint Catharines?
January and February, with an average relative humidity of 83%, are most humid months.
How much does it rain in Saint Catharines?
In Saint Catharines, Canada, during the entire year, the rain falls for 177.2 days and collects up to 786mm (30.94") of precipitation.
When does it snow in Saint Catharines?
Months with snowfall in Saint Catharines, Canada, are January through May, October through December.
How much does it snow in Saint Catharines?
In Saint Catharines, during the entire year, snow falls for 58.5 days and aggregates up to 403mm (15.87") of snow.
What is the month with the least sunshine in Saint Catharines?
With an average of 2.8h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Saint Catharines?
The months with the lowest UV index in Saint Catharines are January and December, with an average maximum UV index of 1.
When does it snow the most in Saint Catharines?
The month with the most snowfall in Saint Catharines is February, when snow falls for 14.1 days and typically aggregates up to 127mm (5") of snow.
What is the month with the coldest sea water in Saint Catharines?
With an average sea temperature of 1.7°C (35.1°F), February is the month with the coldest seawater in Saint Catharines, Canada.
When is Daylight Saving Time (DST) in Saint Catharines?
On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow in Saint Catharines?
In Saint Catharines, snow does not fall in June through September.
When are the longest days in Saint Catharines?
The month with the longest days in Saint Catharines is June, with an average of 15h and 18min of daylight.
What part of the year is the hottest in Saint Catharines?
Saint Catharines's temperatures peak on average in July, reaching 24.8°C (76.6°F) at their highest and 18.6°C (65.5°F) at their lowest.
What is the wettest month in Saint Catharines?
The month with the most rainfall in Saint Catharines, Canada, is July, when the rain falls for 17.7 days and typically aggregates up to 80mm (3.15") of precipitation.
What month has the most sunshine in Saint Catharines?
The month with the most sunshine in Saint Catharines is July, with an average of 10.7h of sunshine.
When is the highest UV index in Saint Catharines?
The months with the highest UV index are July and August, with an average maximum UV index of 6.
What month is the sea warmest in Saint Catharines?
With an average sea temperature of 23.2°C (73.8°F), August is the month with the warmest seawater.
What is the least humid month in Saint Catharines?
September is the least humid month in Saint Catharines, Canada, with an average relative humidity of 74%.
What is the driest month in Saint Catharines?
The months with the least rainfall are September and November Rain falls for 15.1 days and accumulates 55mm (2.17") of rain.
What is the month with the shortest days in Saint Catharines?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Saint Catharines, Canada
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-1.4°C).
The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).
Average pressure
Saint Catharines, Canada
- Average pressure in January:
1017.4mbar - Average pressure in February:
1017.3mbar - Average pressure in March:
1018.4mbar - Average pressure in April:
1014.8mbar - Average pressure in May:
1015.4mbar - Average pressure in June:
1013.3mbar
- Average pressure in July:
1014.1mbar - Average pressure in August:
1014.8mbar - Average pressure in September:
1017.2mbar - Average pressure in October:
1015.7mbar - Average pressure in November:
1018.5mbar - Average pressure in December:
1017.7mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed
Saint Catharines, Canada
- Average wind speed in January:
21km/h - Average wind speed in February:
20km/h - Average wind speed in March:
17.8km/h - Average wind speed in April:
17.3km/h - Average wind speed in May:
13.6km/h - Average wind speed in June:
12.8km/h
- Average wind speed in July:
12.1km/h - Average wind speed in August:
13.1km/h - Average wind speed in September:
14.1km/h - Average wind speed in October:
17.9km/h - Average wind speed in November:
19.3km/h - Average wind speed in December:
19.7km/h
The windiest month (with the highest average wind speed) is January (21km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).
Average humidity
Saint Catharines, Canada
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (74%).
Average rainfall
Saint Catharines, Canada
The wettest month (with the highest rainfall) is July (80mm).
The driest months (with the least rainfall) are September and November (55mm).
Average rainfall days
Saint Catharines, Canada
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
17.7 days - Average rainfall days in August:
17 days - Average rainfall days in September:
15.1 days - Average rainfall days in October:
18.9 days - Average rainfall days in November:
14.4 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is October (18.9 days).
The month with the least rainy days is February (8.8 days).
Average snowfall
Saint Catharines, Canada
The month with the highest snowfall is February (127mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Saint Catharines, Canada
- Average snowfall days in January:
13.4 days - Average snowfall days in February:
14.1 days - Average snowfall days in March:
9.3 days - Average snowfall days in April:
3.3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
5.2 days - Average snowfall days in December:
12.5 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature
Saint Catharines, Canada
The best month for swimming (with the highest average sea temperature) is August (23.2°C).
The coldest month (with the lowest average sea temperature) is February (1.7°C).
Average daylight / Average sunshine
Saint Catharines, Canada
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
2h and 5min - Average sunshine in February:
3h and 1min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
4h and 4min - Average sunshine in November:
4h and 3min - Average sunshine in December:
3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days
Saint Catharines, Canada
- Average sunshine days in January:
7.5 days - Average sunshine days in February:
8 days - Average sunshine days in March:
10.5 days - Average sunshine days in April:
10.4 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
11 days - Average sunshine days in September:
13 days - Average sunshine days in October:
10.3 days - Average sunshine days in November:
11 days - Average sunshine days in December:
8.8 days
The month with the most sunshine days is September (13 days).
The month with the least sunshine days is January (7.5 days).
Average UV index
Saint Catharines, Canada
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Saint Catharines, Canada
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Saint Catharines, Canada
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
Saint Catharines, Canada
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