The weather in Jeju Island is actually quite changeable. We just went in early August and just got back. It's sunny most of the time, and short sleeves are quite suitable, but it's best to have sun protection clothes. The biggest feature of Jeju weather is the strong wind, especially at the seaside, so the somatosensory temperature is actually quite comfortable at the seaside. The focus is on sun protection! ! ! Rain gear still needs to be brought, so we will encounter rain for no reason, which is without any warning. The tour guide also said that their weather is like this. At this time, it would be great to have a waterproof and sunscreen clothing. Because the weather in Jeju is unstable, the weather forecast is often inaccurate. The rain in Jeju is generally not very heavy and lasts for a short time (unless there is a typhoon). Simple and portable rain gear, such as a portable raincoat, is OK if you carry it in your bag. I just got back from Jeju. Please keep asking questions.

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