China
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
33,210km²
Area
1,261km
Coastline
measured on a simplified outline
1,746m
Highest point
9,200,000
People
29°C
Warmest sea
August
62km
To the mainland
When to go to Hainan Island
Best for the beach from November to March.
The sea is warmest in August (29 °C) and coolest in February (22 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in China which makes up the majority of the province of the same name
Hainan Island is an island in China. It covers 33,210 km², with 1,261 km of coastline. Its highest point rises to 1,746 m. About 9,200,000 people live on it. The nearest mainland is 62 km away.
Getting there
- Sanya Phoenix International Airport (SYX)main airport (3 on the island with scheduled flights)
- FerriesGuangdong-Hainan Railway Ferry
- 62 km from the mainlanddistance to the nearest continental coast
- From November to Marchbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
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On the island
What you find on Hainan Island.
- 78beachespossible camp site, Dadonghai Beach, potential camping beach and 75 more
- 51viewpointsHaiyue Square, Sea View Platform, View for Haikou City and 48 more
- 9lighthouses
- 12ferry terminalsXinhai Harbour, Nangang Station and 10 more
- 20marinasClearwater Bay Marina and 19 more
- 58named peaksWuzhi Shan II, Wuzhi Mountain, Yingge Ling and 55 more
- 4volcanoesMount Fengluling, Mount Yanjingling, Leihu Volcano and 1 more
- 5waterfallsDiaoluo mountain and 4 more
- 1castles and fortsChangming Village Gun Tower
- 8ruins and archaeological sitesHuangnigoudui Tianjiaotanban and 7 more
- 4campsitesRV Park & Camp Groud and 3 more
- 307hotels, guesthouses and apartments
- 515restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
Cross-checked with our atlases
Hainan Island in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Hainan Island, each with its own numbers.
1beachCoastya
67lakesLakeyas
Largest lake
58.0km²
Songtao Shuiku
according to Lakeyas
Warmest lake
31.6°C
Shimen Shuiku
surface water, warmest month · according to Lakeyas
Beach with the warmest sea
28.4°C
Xiao'ao Gang
sea in the warmest month · according to Coastya
67 lakes
on Lakeyas, the lake atlas
- Songtao Shuiku58.0km²
- Daguangba Reservoir35.2km²
- Niululing Shuiku25.3km²
- Nanfu Shuiku11.6km²
- Wanning Shuiku9.5km²
- Changmao Shuiku7.3km²
- Gaopoling Shuiku6.8km²
- Hongcheng Lake0.29km²
59 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗
The shape of the land.
On average the island stands 191 m above the sea. 69 % of it is below 200 m.
- 32 %0–50 m
- 38 %50–200 m
- 20 %200–500 m
- 9 %500–1,000 m
- 1 %1,000–2,000 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
200 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Haikou3,001,600 people
- Sanya1,031,396 people
- Wenchang560,894 people
- Wanning545,992 people
- Qionghai528,238 people
- Basuo444,458 people
- Xiuying290,000 people
- Nada256,652 people
- Wuzhishan112,269 people
- Qiongshan87,657 people
- Dacheng84,620 people
- Sandu76,757 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 23 | 26 | 30 | 33 | 33 | 31 | 31 | 30 | 30 | 28 | 26 | 23 |
| Night low (°C) | 13 | 14 | 18 | 21 | 24 | 24 | 24 | 24 | 23 | 21 | 18 | 14 |
| Sea (°C) | 22 | 22 | 23 | 25 | 28 | 29 | 29 | 29 | 28 | 28 | 26 | 24 |
| Rain (mm) | 25 | 20 | 44 | 83 | 180 | 191 | 256 | 344 | 304 | 332 | 90 | 46 |
| Wet days | 5 | 5 | 7 | 11 | 20 | 21 | 22 | 23 | 21 | 15 | 9 | 6 |
| Sun h/day | 3.2 | 3.9 | 4.1 | 5.1 | 6.3 | 6.2 | 6.3 | 5.2 | 4.8 | 4.3 | 3.8 | 2.8 |
| Wind (km/h) | 11 | 10 | 10 | 9 | 8 | 9 | 9 | 8 | 9 | 11 | 12 | 12 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +1.1 | +0.4 | +0.7 | +0.6 | +0.3 | +0.4 | +1.0 | +1.0 | +1.9 | +0.1 | −0.8 | −0.7 |
| 2021 | −0.4 | −0.2 | +0.8 | +1.3 | +1.3 | +0.4 | +1.1 | +0.2 | +0.6 | +0.7 | +1.4 | +1.3 |
| 2022 | +2.1 | +1.1 | +0.9 | −0.1 | −0.4 | +0.7 | +1.3 | +1.0 | +1.4 | +0.6 | +0.5 | +0.3 |
| 2023 | +0.2 | +1.6 | +0.8 | +1.0 | +0.6 | +0.9 | +1.8 | +0.8 | +0.7 | +0.9 | +1.3 | +1.5 |
| 2024 | +1.7 | +1.2 | +0.6 | +0.4 | +0.2 | +1.1 | +0.8 | +0.3 | +0.9 | +0.2 | −0.2 | +0.2 |
| 2025 | −0.3 | −0.7 | −0.1 | −0.3 | +0.4 | +0.4 | +0.4 | +0.4 | +0.3 | +0.6 | +0.1 | +0.9 |
+1 warmer than usual −1 cooler than usual
Nearby
More islands nearby.
VietnamAbout these numbers
| Names, area, population | Wikidata (Q1081204) · CC0 |
|---|---|
| Outline | Natural Earth · public domain |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Beaches, mountains, lakes and waterfalls | Coastya, Lakeyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST; HydroLAKES (Messager et al. 2016) · CC BY 4.0, LakeTEMP (Korver et al. 2024) · CC BY 4.0 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
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