21.09
mon
mon
Day

73°F
SW 2 mph
Precip.
5%
5%
Night

55°F
E 4 mph
Precip.
8%
8%
22.09
tue
tue
Day

64°F
SE 9 mph
Precip.
13%
13%
Night

52°F
SE 4 mph
Precip.
14%
14%
23.09
wed
wed
Day

70°F
SW 3 mph
Precip.
1%
1%
Night

55°F
NE 6 mph
Precip.
27%
27%
24.09
thu
thu
Day

64°F
E 5 mph
Precip.
58%
58%
Night

48°F
E 4 mph
Precip.
34%
34%
25.09
fri
fri
Day

68°F
N 9 mph
Precip.
16%
16%
Night

59°F
E 4 mph
Precip.
52%
52%
26.09
sat
sat
Day

55°F
SE 8 mph
Precip.
20%
20%
Night

50°F
SE 3 mph
Precip.
35%
35%
27.09
sun
sun
Day

63°F
NW 7 mph
Precip.
2%
2%
Night

55°F
NW 14 mph
Precip.
27%
27%
28.09
mon
mon
Day

59°F
NW 9 mph
Precip.
50%
50%
Night

61°F
N 7 mph
Precip.
48%
48%
29.09
tue
tue
Day

66°F
NE 14 mph
Precip.
3%
3%
Night

50°F
NE 4 mph
Precip.
29%
29%
30.09
wed
wed
Day

61°F
E 16 mph
Precip.
2%
2%
Night

52°F
E 9 mph
Precip.
6%
6%
01.10
thu
thu
Day

59°F
E 13 mph
Precip.
2%
2%
Night

45°F
NE 5 mph
Precip.
16%
16%
02.10
fri
fri
Day

61°F
S 6 mph
Precip.
2%
2%
Night

45°F
NE 5 mph
Precip.
9%
9%
03.10
sat
sat
Day

64°F
N 1 mph
Precip.
6%
6%
Night

52°F
NE 7 mph
Precip.
15%
15%
04.10
sun
sun
Day

64°F
N 6 mph
Precip.
13%
13%
Night

55°F
E 5 mph
Precip.
25%
25%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 71.6°F. The highest and lowest sea temperatures during the month were 74.8°F and 69.6°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 70.5°F and 58.6°F.
Air temperature in Sapporo, °F
Precipitation total in Sapporo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sapporo
Sapporo on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Sapporo
Local time: 04:55
September 21, monday
0600

57°F
NE
2 mph
2 mph
0900

66°F
NW
2 mph
2 mph
1200

73°F
SW
2 mph
2 mph
1500

72°F
SW
6 mph
6 mph
1800

59°F
SE
2 mph
2 mph
2100

57°F
E
4 mph
4 mph
September 22, tuesday
0000

55°F
E
4 mph
4 mph
0300

57°F
SE
5 mph
5 mph

























