Current sea water temperature:
+73.4°F
| Minimum sea water temperature in September: | 79.2°F |
| Maximum sea water temperature in September: | 66.2°F |
| Average sea water temperature in September: | 73.0°F |
| more information | |
14 days
forecast
forecast
| Dalian |
monthly
weather
weather
| Dalian |
Sea water temperature for the last 10 days:
| September 14 | 73.4°F | September 9 | 76.3°F |
| September 13 | 73.6°F | September 8 | 75.9°F |
| September 12 | 73.8°F | September 7 | 76.8°F |
| September 11 | 73.8°F | September 6 | 76.3°F |
| September 10 | 74.3°F | September 5 | 75.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Dalian?
Based on the data about daily sea water temperature for the last three years the warmest sea in Dalian was noticed in August, July and September.
Monthly Sea Temperatures in Dalian, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 81.4°F. The highest and lowest sea temperatures during the month were 85.6°F and 78.8°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 75.9°F. The highest and lowest sea temperatures during the month were 82.6°F and 70.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.3°F. The highest and lowest sea temperatures during the month were 78.1°F and 71.8°F.
current
weather
weather
| Dalian |
weather in
September
September
| Dalian |
Best time for vacation in Dalian
Dalian on a weather map
Places in China:
Name
°F
24 Hours Forecast
Dalian
Local time: 02:03
September 15, tuesday
0300

66°F
N
2 mph
2 mph
0600

66°F
NE
4 mph
4 mph
0900

72°F
NE
6 mph
6 mph
1200

75°F
N
11 mph
11 mph
1500

75°F
N
12 mph
12 mph
1800

73°F
N
11 mph
11 mph
2100

72°F
N
12 mph
12 mph
September 16, wednesday
0000

72°F
N
13 mph
13 mph


























