April weather forecast
Donghae, South Korea

As Donghae delves deeper into spring, April heralds the arrival of a more temperate climate. Longer days coupled with increased sunshine hours signify the continuous shift from winter's end to the heart of spring. Ascending daylight hours, compared to March, demonstrate this seasonal transition more than ever. Of climatological interest, the average highest temperature in April spikes to 16.6°C (61.9°F), highlighting the rapid increase in warmth.

Temperature

An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a fresh 10.8°C (51.4°F) to a comfortable 16.6°C (61.9°F). Throughout the month of April, the average temperature dips to a frosty 7.5°C (45.5°F) at night.

Humidity

In April, the average relative humidity is 59%.

Rainfall

In Donghae, during April, the rain falls for 7.3 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 107.8 rainfall days, and 1279mm (50.35") of precipitation is accumulated.

Sea temperature

In Donghae, South Korea, the average seawater temperature in April is 12.4°C (54.3°F).
Note: Beware of 12.4°C (54.3°F) waters at 13°C (55.4°F), they're uninviting, and a dip below 10°C (50°F) has risks of breath loss and cold shock, contingent on health.

Daylight

In April, the average length of the day is 13h and 10min.
On the first day of April, sunrise is at 06:08 and sunset at 18:46. On the last day of the month, sunrise is at 05:29 and sunset at 19:12 KST.

Sunshine

The month with the most sunshine is April, with an average of 7h of sunshine.

UV index

In Donghae, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, the maximum UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.