18.12
thu
thu
Day

50°F
N 15 mph
Precip.
0%
0%
Night

50°F
N 23 mph
Precip.
0%
0%
19.12
fri
fri
Day

32°F
E 24 mph
Precip.
0%
0%
Night

27°F
E 23 mph
Precip.
0%
0%
20.12
sat
sat
Day

28°F
N 14 mph
Precip.
0%
0%
Night

34°F
NE 22 mph
Precip.
0%
0%
21.12
sun
sun
Day

30°F
E 21 mph
Precip.
0%
0%
Night

27°F
SE 16 mph
Precip.
76%
76%
22.12
mon
mon
Day

25°F
E 6 mph
Precip.
0%
0%
Night

28°F
N 6 mph
Precip.
0%
0%
23.12
tue
tue
Day

36°F
E 19 mph
Precip.
45%
45%
Night

34°F
SE 14 mph
Precip.
29%
29%
24.12
wed
wed
Day

23°F
SW 8 mph
Precip.
0%
0%
Night

27°F
NW 6 mph
Precip.
0%
0%
25.12
thu
thu
Day

34°F
N 5 mph
Precip.
0%
0%
Night

50°F
NE 22 mph
Precip.
100%
100%
26.12
fri
fri
Day

45°F
E 16 mph
Precip.
47%
47%
Night

39°F
E 7 mph
Precip.
0%
0%
27.12
sat
sat
Day

39°F
N 5 mph
Precip.
0%
0%
Night

39°F
N 2 mph
Precip.
0%
0%
28.12
sun
sun
Day

41°F
N 2 mph
Precip.
0%
0%
Night

36°F
NW 6 mph
Precip.
0%
0%
29.12
mon
mon
Day

32°F
S 13 mph
Precip.
0%
0%
Night

28°F
SW 9 mph
Precip.
0%
0%
30.12
tue
tue
Day

30°F
W 8 mph
Precip.
0%
0%
Night

30°F
W 7 mph
Precip.
0%
0%
31.12
wed
wed
Day

37°F
N 4 mph
Precip.
0%
0%
Night

39°F
N 7 mph
Precip.
0%
0%
sea water
temperature
temperature
| Niagara-on-the-Lake |
monthly
weather
weather
| Niagara-on-the-Lake |
current
weather
weather
| Niagara-on-the-Lake |
7 days
forecast
forecast
| Niagara-on-the-Lake |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 40.8°F. The highest and lowest sea temperatures during the month were 43.9°F and 39.4°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 38.6°F. The highest and lowest sea temperatures during the month were 40.3°F and 36.3°F.
Air temperature in Niagara-on-the-Lake, °F
Precipitation total in Niagara-on-the-Lake, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Niagara-on-the-Lake
Niagara-on-the-Lake on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Niagara-on-the-Lake
Local time: 20:20
December 18, thursday
2100

48°F
N
19 mph
19 mph
December 19, friday
0000

50°F
N
23 mph
23 mph
0300

50°F
N
24 mph
24 mph
0600

48°F
N
22 mph
22 mph
0900

37°F
NE
19 mph
19 mph
1200

32°F
E
24 mph
24 mph
1500

28°F
NE
27 mph
27 mph
1800

27°F
E
27 mph
27 mph



























