Sanya Hainan weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Sanya Hainan September weather at a glance
In September, Sanya Hainan averages 27.5°C, with typical highs of 30.1°C and lows of 25.3°C. The historical average is 23 wet days and 86% humidity.
Sanya Hainan September temperature & humidity
Sanya Hainan September 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 September
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 30.1°C
- Morning & eveningLight layer for air-conditioned rooms · average low 25.3°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Sanya Hainan September sunrise & sunset times
2026 September · Local time (Asia/Shanghai)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 06:27 | 18:56 | 12h 29m |
| 2026-09-15 | 06:30 | 18:45 | 12h 15m |
| 2026-09-30 | 06:32 | 18:32 | 11h 59m |
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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Best months to visit Sanya Hainan
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September 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 September?
In September, Sanya Hainan averages 27.5°C, with typical highs of 30.1°C and lows of 25.3°C. The historical average is 23 wet days and 86% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Sanya Hainan in September?
There are about 23 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Sanya Hainan in September?
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 September 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 September?
On 2026-09-15, calculated sunrise is 06:30 and sunset is 18:45 in local time (Asia/Shanghai). Times vary by date and terrain.
Sanya Hainan weather by month
More Greater China destinations in September
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