The tickets are very convenient to buy and use immediately. You should definitely experience the underwater hot springs, although the changing room facilities are rather old.
Because it was the off-season and the time was early, I was the only participant in the originally booked session. However, after Coach Ah Shan assessed the situation and determined that the weather conditions permitted, the tour proceeded. I was fortunate enough to witness the sunrise over Fire Island on the way to the Blue Grotto, and thanks to the coach's thorough and detailed explanations, even as someone who hadn't swum or been in the water for five years, I successfully completed the Blue Grotto adventure. A huge thank you to the coach for his professional guidance!
Anonymous User
Solo traveler
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 21.2–25.8°C, 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 28.2–28.8°C, 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 23.1–27.7°C, 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 18.7–20.4°C, 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. 24°C / Annual rainfall: approx. 89 mm / Summer humidity: 70%–80% / Rainiest month: October
Green Island monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
18.7°C
1.4
February
20.4°C
1.7
March
21.2°C
1.9
April
25.8°C
2.1
May
25.7°C
2.9
June
28.2°C
3.5
July
28.8°C
15.1
August
28.1°C
3.2
September
27.7°C
12.5
October
25.7°C
37
November
23.1°C
7.8
December
19.1°C
0.7
Green Island weather for the next seven days
5/26
Tuesday
Sunny
32°C/23.6°C
5/27
Wednesday
Partly Cloudy
31.5°C/24.3°C
5/28
Thursday
Patchy rain nearby
31.6°C/25°C
5/29
Friday
Moderate rain
30.1°C/24.9°C
5/30
Saturday
Patchy rain nearby
27.7°C/24.2°C
5/31
Sunday
Overcast
26.9°C/23.5°C
6/1
Monday
Sunny
29.3°C/23°C
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