The Li River: A Journey Through China’s Most Breathtaking Landscape
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Sanya Weather in May
Thinking of visiting Sanya in May? Expect very high temperatures reaching 31°C (88°F) during the day, dropping to 26°C (79°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Sanya in May
Past climate data indicates that roughly 11 days will see rain, totalling around 152 mm (6 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Sanya in May
May in Sanya brings typical temperatures with highs around 31°C (88°F) and lows of 26°C (79°F). It's usually most comfortable outside during the morning and later in the day. Nights are warm at 26°C (79°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.Should you favor a climate that's both dry and comfortably warm, January, February, March, April, November and December typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Sanya Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
37%
Precipitation
152 mm (6 in)
Rainy days
11 days
Humidity
76%
Sanya Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sanya - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sanya typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Sanya in May
Browse day-by-day weather records for Sanya spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sanya historical weather extremes in May
Our historical data for Sanya spans 1976 to 2026, revealing these weather extremes.
- The warmest day in May was on May 26, 1988, with a maximum of 38°C (100°F).
- The lowest daytime temperature in May was 26°C (79°F), recorded on May 7, 1999.
- Sanya registered its coldest May night on May 8, 2007, with temperatures dropping to 18°C (64°F).
Best Places in China in May
Find out more about the weather in China and which places have the best travel conditions in this month. See all of China in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Sanya in May
Warm but pleasant conditions in Sanya in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.
What To Do in Sanya in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Sanya 3-Day Forecast
More climate data for Sanya
See the full Sanya climate overview or explore weather in China.
Popular in May
Where to go in May - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The Li River: A Journey Through China’s Most Breathtaking Landscape
Go to China's Zhangjiajie National Park with the highest, the fastest, largest-loaded outdoor elevator in the world
You won't find this unique landscape anywhere else in the world. Thousands of floating mountains overgrown with trees at the top dominate this fairy tale landscape.
Go to Xinjiang in China
In Xinjiang you get to see a mix of East and Central Asia. An experience that you might want to add to your bucket list. You can travel through the province as if you are following an ancient silk route.
Mount Kailash
The best time for a Kailash tour/trekking is from mid-May to mid-October when the temperature is most pleasant. It is warm, dry and sunny in that period.