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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 23.8–27.6°C, 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 29.3°C, 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 24.2–27.8°C, 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 19.7–20.7°C, 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. 25°C / Annual rainfall: approx. 2426 mm / Summer humidity: 75%–85% / Rainiest month: October

Hainan monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
19.9°C
65.6
February
20.7°C
33.4
March
23.8°C
50.3
April
26.6°C
74
May
27.6°C
314.3
June
29.3°C
141.3
July
29.3°C
177
August
28.8°C
189.5
September
27.8°C
435.4
October
26°C
599.7
November
24.2°C
311.6
December
19.7°C
34.8

Hainan weather for the next seven days

6/23
Tuesday
Sunny
37.4°C/24.2°C
6/24
Wednesday
Sunny
38.4°C/24.7°C
6/25
Thursday
Patchy rain nearby
39.2°C/24.6°C
6/26
Friday
Patchy rain nearby
37.3°C/24.9°C
6/27
Saturday
Moderate rain
34.8°C/24.2°C
6/28
Sunday
Patchy rain nearby
33.7°C/24°C
6/29
Monday
Patchy rain nearby
33.8°C/23.6°C

Hainan Frequently Asked Questions and Useful Information for Travel

Is Hainan worth visiting for tourists?

Overall, Hainan Island offers a mix of relaxation, adventure, and cultural experiences, making it a great destination for various types of travelers. Whether you're looking for a beach getaway, outdoor adventure, or cultural exploration, Hainan has something to offer.

Can US citizens travel to Hainan?

Foreign nationals holding ordinary passports from countries with diplomatic relations with China may enter Hainan Province without a visa, provided that they will enter Hong Kong or Macao SAR first and then enter Hainan Province as part of a tourist group organized by a travel agency registered in any of the two SARs.

Do they speak English in Hainan?

The Han Chinese of Hainan speaks a variant of the Min Nan Chinese language, known as Hainanese. Mandarin and Cantonese are spoken by the majority of residents. English is understood by some of the younger generation, but Hainan still largely remains a non-English speaking environment.

What is the best time to visit Hainan Island?

Winter: December to February – BEST Time to Visit Hainan Recommended tour destinations: The best months to visit Hainan Island are always winter months. Yalong Bay, Luhuitou Peninsula, Dadonghai Beach, Tianya Haijiao, Dongtian Park, etc.

What are some popular attractions in Hainan?

Hainan boasts stunning natural beauty and cultural sites. Popular attractions include Yalong Bay for its pristine beaches, Tianya Haijiao (End of the Earth) for its iconic rock formations, and the Nanwan Monkey Island for a unique wildlife encounter. Explore vibrant local markets and historical temples for a deeper cultural immersion.