Sanya Hainan weather in May
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Sanya Hainan May weather at a glance
In May, Sanya Hainan averages 28.2°C, with typical highs of 31°C and lows of 25.9°C. The historical average is 23 wet days and 82% humidity.
Sanya Hainan May temperature & humidity
Sanya Hainan May rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Sanya Hainan in May
Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 23 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 31°C
- Morning & eveningLight layer for air-conditioned rooms · average low 25.9°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Sanya Hainan May sunrise & sunset times
2026 May · Local time (Asia/Shanghai)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-05-01 | 06:15 | 19:03 | 12h 48m |
| 2026-05-15 | 06:09 | 19:08 | 12h 59m |
| 2026-05-31 | 06:05 | 19:14 | 13h 9m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Sanya Hainan travel updates
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Today’s weather and forecast
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Sanya Hainan city map
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Best months to visit Sanya Hainan
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
May weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Sanya Hainan weather like in May?
In May, Sanya Hainan averages 28.2°C, with typical highs of 31°C and lows of 25.9°C. The historical average is 23 wet days and 82% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Sanya Hainan in May?
There are about 23 wet days in May. Pack a rain jacket and water-resistant shoes.
What should I wear in Sanya Hainan in May?
Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 23 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
What are the best months to visit Sanya Hainan?
Recent weather data rates January, February, March, November among the more comfortable months.
Where can I check Sanya Hainan weather in May in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Sanya Hainan in May?
On 2026-05-15, calculated sunrise is 06:09 and sunset is 19:08 in local time (Asia/Shanghai). Times vary by date and terrain.
Sanya Hainan weather by month
More Greater China destinations in May
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations