Weather in January
In January, the average sea temperature in Dachangshan Island, China, is 3.8°C (38.8°F). Note: In swimming scenarios, this is an immediate danger to life. Weather in January »
Weather in February
With an average sea temperature of 2.2°C (36°F), February is the month with the coldest seawater in Dachangshan Island, China. Note: In the sphere of swimming, this is extremely cold and poses life-endangering hazards. Weather in February »
Weather in March
In March, the average sea temperature in Dachangshan Island, China, is 2.7°C (36.9°F). Note: During swimming sessions, this situation poses an instant life risk. Weather in March »
Weather in April
In Dachangshan Island, China, the average seawater temperature in April is 6.3°C (43.3°F). Note: Dipping into 6.3°C (43.3°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Weather in April »
Weather in May
In Dachangshan Island, China, the average seawater temperature in May is 12.3°C (54.1°F). Note: Swimming at temperatures less than 10°C (50°F) in 12.3°C (54.1°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. Weather in May »
Weather in June
In Dachangshan Island, China, in June, the average water temperature is 18.8°C (65.8°F). Note: For most people, swimming in water at 18.8°C (65.8°F) is not a pleasurable experience. Weather in June »
Weather in July
In July, the average sea temperature in Dachangshan Island, China, is 23.3°C (73.9°F). Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. Weather in July »
Weather in August
August is the month with the warmest seawater in Dachangshan Island, China, with an average sea temperature of 24.3°C (75.7°F). Note: If cold is not your friend, swimming at 24.3°C (75.7°F) might be daunting. Weather in August »
Weather in September
In September, the average sea temperature in Dachangshan Island, China, is 21.8°C (71.2°F). Note: The enjoyment of swimming decreases for most when the surface water temperature is 21.8°C (71.2°F). Weather in September »
Weather in October
In Dachangshan Island, China, in October, the average water temperature is 17.4°C (63.3°F). Note: A surface water temperature of 17.4°C (63.3°F) does not provide an enjoyable swimming experience for most. Weather in October »
Weather in November
In Dachangshan Island, China, the average seawater temperature in November is 12.8°C (55°F). Note: Diving into 12.8°C (55°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation. Weather in November »
Weather in December
In Dachangshan Island, China, in December, the average water temperature is 7.8°C (46°F). Note: To swim in 7.8°C (46°F) at less than 10°C (50°F), ensure you're well-protected. Weather in December »
[Resources]Frequently asked questions
What is the month with the coldest sea water in Dachangshan Island?
The month with the coldest seawater in Dachangshan Island is February, with an average sea temperature of 2.2°C (36°F).
When are the longest days in Dachangshan Island?
June has the longest days of the year in Dachangshan Island, with an average of 14h and 54min of daylight.
What is the month with the warmest sea water in Dachangshan Island?
The month with the warmest seawater is August, with an average sea temperature of 24.3°C (75.7°F).
What is the month with the shortest days in Dachangshan Island?
The month with the shortest days in Dachangshan Island is December, with an average of 9h and 30min of daylight.
Is there Daylight Saving Time (DST) in Dachangshan Island?
Dachangshan Island does not observe Daylight Saving Time (DST). CST timezone is used over the entire year.
Average sea temperature
Dachangshan Island, China
The best month for swimming (with the highest average sea temperature) is August (24.3°C).
The coldest month (with the lowest average sea temperature) is February (2.2°C).
Average daylight
Dachangshan Island, China
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
Dachangshan Island, China
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