The Sanya historical weather page is built for travel planning and destination comparison, covering monthly temperature, rainfall, rainy days, and sunshine trends from 2015 through the latest complete month. Best time to visit Sanya. Searches for the best time to visit Sanya usually need monthly temperature, rainfall, and rainy-day context. Use the month-by-month view to find comfortable travel windows instead of relying only on annual averages. Sanya average temperature by month. For queries such as Sanya weather in April, Sanya temperature in August, or Sanya historical rainfall, start with the monthly pattern and then compare specific years when timing matters. How to read Sanya weather patterns. Sanya, 海南 sits in a tropical or low-latitude climate band. Check the full monthly range because the warmer season (June to August) and cooler season (December to February) can feel very different for travel planning. Sanya rainfall and seasonality. For outdoor plans in Sanya, compare both total rainfall and rainy days by month. Shoulder periods (March-May and September-November) are useful for balancing temperature comfort, rainfall risk, and travel demand. When to compare Sanya with other destinations. If you are choosing between several cities, compare Sanya with nearby destinations in the same month. This avoids relying only on annual averages and makes temperature and precipitation differences clearer.
Sanya Historical Weather Since 2015 | Latest Complete Month Data
Sanya historical weather from 2015 through the latest complete month: monthly temperature, rainfall, sunshine, yearly comparisons, and travel timing references. The Sanya historical weather page is built for travel planning and destination comparison, covering monthly temperature, rainfall, rainy days, and sunshine trends from 2015 through the latest complete month. Best time to visit Sanya. Searches for the best time to visit Sanya usually need monthly temperature, rainfall, and rainy-day context. Use the month-by-month view to find comfortable travel windows instead of relying only on annual averages. Sanya average temperature by month. For queries such as Sanya weather in April, Sanya temperature in August, or Sanya historical rainfall, start with the monthly pattern and then compare specific years when timing matters. How to read Sanya weather patterns. Sanya, 海南 sits in a tropical or low-latitude climate band. Check the full monthly range because the warmer season (June to August) and cooler season (December to February) can feel very different for travel planning. Sanya rainfall and seasonality. For outdoor plans in Sanya, compare both total rainfall and rainy days by month. Shoulder periods (March-May and September-November) are useful for balancing temperature comfort, rainfall risk, and travel demand. When to compare Sanya with other destinations. If you are choosing between several cities, compare Sanya with nearby destinations in the same month. This avoids relying only on annual averages and makes temperature and precipitation differences clearer. Sanya historical weather from 2015 through the latest complete month: monthly temperature, rainfall, sunshine, yearly comparisons, and travel timing references.
Sanya monthly fact table
These facts are generated from historical monthly averages for 2015-01-01/2026-05-31, ready for best-month, rainy-season, hottest-month, and coldest-month answers.
- Recommended month: December
- Hottest month: June
- Coldest month: January
- Rainiest month: July
| Month | Avg Temp | Precip | Rainy Days | Sunshine |
|---|
| January | 21.2°C | 21 mm | 8.5 | 9.3 h |
| February | 22°C | 13 mm | 6.8 | 9.9 h |
| March | 24.2°C | 18 mm | 11.7 | 10.7 h |
| April | 26.4°C | 35 mm | 16.4 | 11.3 h |
| May | 28.3°C | 115 mm | 24.9 | 11 h |
| June | 29°C | 206 mm | 27.7 | 10.8 h |
| July | 28.4°C | 271 mm | 28 | 10.1 h |
| August | 28.4°C | 228 mm | 27.9 | 10 h |
| September | 27.7°C | 218 mm | 27 | 9.4 h |
| October | 26.2°C | 237 mm | 22.8 | 8.9 h |
| November | 24.8°C | 43 mm | 12.4 | 10.1 h |
| December | 22.2°C | 21 mm | 6.5 | 9.4 h |
Source: Open-Meteo Archive; generated: 2026-06-07.
Sanya historical weather travel guide
When is the best time to visit Sanya?
Based on historical monthly averages for 2015-01-01/2026-05-31, the recommended month for Sanya is December, with an average temperature around 22.2°C, average precipitation around 21 mm, and a travel comfort score of 100.
Is it hot in Sanya in summer?
The hottest month in Sanya historical averages is June, with an average temperature around 29.0°C and an average high around 30.9°C. For summer trips, check rainfall and heat precautions together.
When is the rainy season in Sanya?
Rain is most concentrated in Sanya during July, August, October. The rainiest month is July, with average precipitation around 271 mm and about 28.0 rainy days.
What is the coldest month in Sanya?
The coldest month in Sanya historical averages is January, with an average temperature around 21.2°C and an average low around 18.7°C. Prepare warm clothing for winter travel.