Measurements:
°C
°F
Dalian
36°F
S 9 mph
Feels like: 28°F
Precip: 0%
World Resorts China Dalian Weather

Dalian Sea Water Temperature

Current Sea Water Temperature:
+37.8°F
Maximum Sea Water Temperature in March: 44.4°F
Minimum Sea Water Temperature in March: 31.4°F
Average water temperature in March: 37.2°F

Sea Water Temperature for the Last 10 Days:

March 14 37.8°F March 09 37.4°F
March 13 38.0°F March 08 37.2°F
March 12 38.0°F March 07 38.0°F
March 11 37.8°F March 06 37.4°F
March 10 37.4°F March 05 36.8°F

When is the Warmest Sea for Dalian?

According to our data for the last three years for Dalian the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Dalian was 83.0°F. The maximum and minimum values were 80.8°F and 85.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Dalian was 80.5°F. The maximum and minimum values were 74.0°F and 84.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Dalian was 78.2°F. The maximum and minimum values were 74.2°F and 81.2°F respectively.

Best Time to Visit Dalian
The most sunny months:
March 22 days
September 21 days
October 21 days
The most warm months:
August 85.8 °F
July 84.0 °F
September 78.4 °F
Warmest sea temperature:
August 80.9 °F
July 76.7 °F
September 75.5 °F
The most cold months:
January 28.6 °F
February 32.1 °F
December 34.3 °F
The most rainy months:
August 5 days
July 4 days
June 3 days
The most windy months:
December 13 mph
November 12 mph
January 12 mph

Dalian on the Weather Map

China Resorts:
NAME
Beidaihe +32
Beijing +42
Dadunhai +68
Dalian +36
Guangzhou +72
Haikou +70
Hainan +62
Hong Kong +66
Macau +68
Quingdao +44
Sanya +68
Shanghai +48
Shenzhen +66
Weihai +38
Yalong Bay +68
24 Hours Weather Forecast
Dalian
Local time: 23:14
15 mar, sunday
0000 36°F
S
9 mph
0300 34°F
S
9 mph
0600 34°F
S
9 mph
0900 36°F
S
10 mph
1200 42°F
SE
11 mph
1500 42°F
SE
12 mph
1800 38°F
SE
7 mph
2100 36°F
E
6 mph

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