Although our itinerary was changed to a quick trip to Green Island due to Typhoon Yangliu, the fact that Asahi Onsen was open in the morning and we could see the sunrise was really exciting and fun! The staff were also very friendly, ensuring we were in a pleasant mood as we entered and exited! There are several pools with different temperatures to choose from. Perhaps because there weren't many early risers, we were able to enjoy the morning tranquility and the sunshine – it was incredibly relaxing and chill!!! I'll definitely visit again next time I'm in Green Island!
Anonymous User
Couple
Green Island Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Green Island year round climate
Spring (March–May): Average 70–78°F, warm and comfortable climate, low rainfall, abundant sunshine. Common activities: Scuba diving, snorkeling, coral viewing, cycling around the island. Recommended clothing: Light long-sleeved clothing, shorts, sandals.
Summer (June–August): Average 82–83°F, hot and humid, occasional showers, but overall low rainfall. Common activities: Sea swimming, water activities, night stargazing. Recommended clothing: Light and breathable clothing, swimwear, hat, sunscreen.
Autumn (September–November): Average 73–81°F, comfortable and pleasant climate, more rainfall in October. Common activities: Scuba diving, snorkeling, whale and dolphin watching, sightseeing. Recommended clothing: Light jacket, long-sleeved clothing, comfortable shoes.
Winter (December–February): Average 65–68°F, mild climate, low rainfall, less affected by the northeast monsoon. Common activities: Scuba diving, snorkeling, cycling around the island, enjoying the sea view. Recommended clothing: Light warm clothing, long pants, jacket.
Green Island climatological average
Annual average temperature: approx. 75.2°F / Annual rainfall: approx. 89 mm / Summer humidity: 70%–80% / Rainiest month: October
Green Island monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
65.7°F
1.4
February
68.7°F
1.7
March
70.2°F
1.9
April
78.4°F
2.1
May
78.3°F
2.9
June
82.8°F
3.5
July
83.8°F
15.1
August
82.6°F
3.2
September
81.9°F
12.5
October
78.3°F
37
November
73.6°F
7.8
December
66.4°F
0.7
Green Island weather for the next seven days
12/19
Friday
Heavy rain
70°F/68°F
12/20
Saturday
Heavy rain
68.9°F/67.7°F
12/21
Sunday
Patchy rain nearby
74.3°F/66.6°F
12/22
Monday
Patchy rain nearby
73.1°F/65.8°F
12/23
Tuesday
Patchy rain nearby
74.9°F/67.7°F
12/24
Wednesday
Patchy rain nearby
74.6°F/66.3°F
12/25
Thursday
Patchy rain nearby
69.4°F/63.4°F
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