March weather forecast
Jeju, South Korea

March ushers in milder weather, a transition phase between winter and spring in Jeju. With daily highs reaching 12.8°C (55°F), the month showcases a gradual increase in temperatures as the heavy winter coats start to give way to lighter attire. March marks the highly anticipated start of the Cherry Blossom Festival making it a remarkable month for visitors. While days are still short, they increase in length, illuminating the island's beauty a bit longer. March's weather flexibility offers conducive conditions for various outdoor activities from hiking to strolling along Jeju's famed coastline.

Temperature

The shift into March in Jeju, South Korea, brings a slight increase in the average high-temperature, moving from a frosty 9.4°C (48.9°F) in February to a cool 12.8°C (55°F). March brings an average low-temperature of 6.1°C (43°F) to Jeju.

Humidity

The months with the lowest humidity in Jeju are February and March, with an average relative humidity of 64.9%.

Rainfall

In Jeju, in March, during 11.2 rainfall days, 89mm (3.5") of precipitation is typically accumulated. Throughout the year, there are 130.2 rainfall days, and 1498mm (58.98") of precipitation is accumulated.

Sea temperature

The month with the coldest seawater is March, with an average sea temperature of 13.3°C (55.9°F).
Note: One needs to be cautious in 13.3°C (55.9°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.

Daylight

In Jeju, the average length of the day in March is 11h and 59min.
On the first day of March in Jeju, sunrise is at 07:01 and sunset at 18:30. On the last day of the month, sunrise is at 06:22 and sunset at 18:53 KST.

Sunshine

In March, the average sunshine in Jeju is 5.1h.

UV index

In March, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 6 in March leads to these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.