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Hainan

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Travel Info
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Travel Info
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Hainan Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Hainan year round climate

  • Spring (March–May): Average 74–81°F, warm and comfortable climate, rainfall gradually increases, especially in May. Common activities: Beach activities, diving, hiking. Suggested clothing: Light long-sleeved shirts, short-sleeved T-shirts, light jackets.
  • Summer (June–August): Average around 84.7°F, hot and humid, relatively high rainfall. Common activities: Swimming, surfing, enjoying the beach. Suggested clothing: Light and breathable clothing, beachwear, sun-protective clothing.
  • Autumn (September–November): Average 75–82°F, pleasant climate, but with high rainfall, especially in October. Common activities: Sightseeing, enjoying seafood, leisure vacation. Suggested clothing: Comfortable and breathable clothing, light jackets.
  • Winter (December–February): Average 67–69°F, relatively cool, low rainfall. Common activities: Spa, leisure vacation, enjoying the winter seascape. Suggested clothing: Long-sleeved shirts, light jackets or sweaters.

Hainan climatological average

Annual average temperature: approx. 77.0°F / Annual rainfall: approx. 2426 mm / Summer humidity: 75%–85% / Rainiest month: October

Hainan monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
67.8°F
65.6
February
69.3°F
33.4
March
74.8°F
50.3
April
79.9°F
74
May
81.7°F
314.3
June
84.7°F
141.3
July
84.7°F
177
August
83.8°F
189.5
September
82°F
435.4
October
78.8°F
599.7
November
75.6°F
311.6
December
67.5°F
34.8

Hainan weather for the next seven days

6/22
Monday
Patchy rain nearby
100.3°F/73.4°F
6/23
Tuesday
Sunny
100.7°F/75.4°F
6/24
Wednesday
Patchy rain nearby
102.1°F/77.1°F
6/25
Thursday
Patchy rain nearby
101.8°F/76.9°F
6/26
Friday
Moderate rain
98.2°F/74.4°F
6/27
Saturday
Patchy rain nearby
87.4°F/75.4°F
6/28
Sunday
Partly Cloudy
89.5°F/76.3°F