World → China → Haikou

Weather in Haikou — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in Haikou

🌦️

+25°

Rain showers

Feels like +28° · humidity 92%

Today 12.9: +29° / +25°

🕐 13:25

Wind

24 km/h

UV index

Air (AQI)

83 · Very poor

Precipitation

100%

Humidity

92%

Pressure

1013 hPa

Sunrise / sunset

06:25 / 18:44

Sea temperature

🌊 +28°

👕 What to wear today

Warm — a T-shirt and light trousers or shorts.

☂️ Take an umbrella💨 WindyFeels warmer by 3°

Weather for an activity:

🎣 fishing 🏖️ the beach 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for Haikou

Today, 12 September, Saturday, in Haikou (China): partly cloudy, warm. During the day the air will warm up to +29°, at night around +25°. Wind up to 28 km/h. High chance of rain — be sure to take an umbrella or a raincoat. Light summer clothing will do — a T-shirt and shorts or light trousers. The sea has warmed up to +28° — great for swimming. The sun will rise at 06:25 and set at 18:44 — daylight lasts 12 hours.

Hourly weather in Haikou

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in Haikou for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Today 12.9

⛈️

💧 100%

+25° +29°

Morning

⛈️

+26°

Day

⛈️

+29°

Evening

🌇

+28°

Night

🌙

+25°

Thunderstorm · precipitation 100% · wind up to 28 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tomorrow 13.9

⛈️

💧 100%

+24° +28°

Morning

🌦️

+25°

Day

⛈️

+28°

Evening

🌇

+25°

Night

🌙

+24°

Thunderstorm · precipitation 100% · wind up to 22 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 14.9

⛈️

💧 100%

+23° +28°

Morning

⛈️

+25°

Day

⛈️

+28°

Evening

🌇

+27°

Night

🌙

+23°

Thunderstorm · precipitation 100% · wind up to 19 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 15.9

⛈️

💧 99%

+23° +29°

Morning

⛈️

+25°

Day

⛈️

+29°

Evening

🌇

+28°

Night

🌙

+23°

Thunderstorm with hail · precipitation 99% · wind up to 12 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 16.9

🌦️

💧 94%

+23° +29°

Morning

🌦️

+25°

Day

🌦️

+29°

Evening

🌇

+28°

Night

🌙

+23°

Drizzle · precipitation 94% · wind up to 17 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 17.9

⛈️

💧 87%

+24° +30°

Morning

⛈️

+26°

Day

⛈️

+30°

Evening

🌇

+29°

Night

🌙

+24°

Thunderstorm · precipitation 87% · wind up to 16 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 18.9

⛈️

💧 92%

+25° +28°

Morning

⛈️

+26°

Day

⛈️

+28°

Evening

🌇

+27°

Night

🌙

+25°

Thunderstorm · precipitation 92% · wind up to 14 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 19.9

🌦️

💧 92%

+24° +27°

Morning

🌦️

+25°

Day

🌦️

+27°

Evening

🌇

+26°

Night

🌙

+24°

Drizzle · precipitation 92% · wind up to 16 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 20.9

🌦️

💧 84%

+26° +30°

Morning

🌦️

+27°

Day

🌦️

+30°

Evening

🌇

+29°

Night

🌙

+26°

Drizzle · precipitation 84% · wind up to 14 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 21.9

🌤️

💧 59%

+26° +31°

Morning

🌤️

+28°

Day

🌤️

+31°

Evening

🌇

+30°

Night

🌙

+26°

Mostly clear · precipitation 59% · wind up to 13 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 22.9

🌦️

💧 42%

+25° +31°

Morning

🌦️

+27°

Day

🌦️

+31°

Evening

🌇

+30°

Night

🌙

+25°

Drizzle · precipitation 42% · wind up to 10 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 23.9

🌦️

💧 52%

+25° +30°

Morning

🌦️

+27°

Day

🌦️

+30°

Evening

🌇

+29°

Night

🌙

+25°

Drizzle · precipitation 52% · wind up to 15 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 24.9

🌦️

💧 66%

+26° +30°

Morning

🌦️

+27°

Day

🌦️

+30°

Evening

🌇

+29°

Night

🌙

+26°

Drizzle · precipitation 66% · wind up to 17 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 25.9

🌦️

💧 61%

+25° +28°

Morning

🌦️

+26°

Day

🌦️

+28°

Evening

🌇

+27°

Night

🌙

+25°

Drizzle · precipitation 61% · wind up to 17 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏖️ Beach

20 / 100

for sea and sun · So-so

🏊 Swimming

0 / 100

water 28° · Bad

🏃 Running

0 / 100

comfort for running · Bad

🧴 UV

27%

moderate · low

☂️ Rain

100%

likely · high

✨ Stars

18 / 100

evening visibility · Bad

🧺 Laundry drying

0 / 100

will dry outside · Bad

🚗 Car wash

0 / 100

better to wait · Bad

🌫️ Air quality

Very poor air

European AQI

PM2.5: 24PM10: 29O₃: 163NO₂: 4

People with allergies or asthma should reduce time outdoors.

🌅 Sun, moon and sea

Sunrise

06:25

Sunset

18:44

Golden hour

18:15

Daylight

12 h (-1 min vs yesterday)

Sea temperature

+28°

🌊 moderate, waves 1.4 m.

Haikou climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+21°

+17°

Jan

+22°

+18°

Feb

+26°

+20°

Mar

+29°

+23°

Apr

+30°

+25°

May

+31°

+27°

Jun

+31°

+27°

Jul

+31°

+26°

Aug

+29°

+25°

Sep

+27°

+24°

Oct

+25°

+22°

Nov

+22°

+19°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Sea	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+21°	+17°	+20°	30 mm	Ideal weather: +21° daytime — neither hot nor cold. 🙂 a sweater for the evening. Sea at +20° — swimmable, refreshing. This is the coldest month of the year.
February	+22°	+18°	+21°	33 mm	The most pleasant season: +22° by day, comfortable all day long. 🙂 a sweater for the evening. Sea at +21° — swimmable, refreshing. Weather-wise, one of the three best months to visit.
March	+26°	+20°	+22°	38 mm	One of the best times to visit: +26° by day, fresh nights. 😊 light summer clothing. Water at +22° — great for swimming. Weather-wise, one of the three best months to visit.
April	+29°	+23°	+26°	72 mm	Gentle warmth — about +29° daytime, great walking weather. Frequent rain (72 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +26° — great for swimming.
May	+30°	+25°	+29°	131 mm	A comfortable month: +30° by day without exhausting heat. One of the wettest months (131 mm): downpours can derail plans. 😊 light summer clothing. Water at +29° — great for swimming.
June	+31°	+27°	+31°	166 mm	Warm and comfortable: +31° by day, +27° at night. It's a rainy month (166 mm) — an umbrella is a must. 😊 light summer clothing. The sea is +31° — like a warm bath. The longest daylight hours of the year — more time for everything.
July	+31°	+27°	+31°	174 mm	Gentle warmth — about +31° daytime, great walking weather. Frequent rain (174 mm over the month) — keep indoor backup plans. 😊 light summer clothing. The sea is +31° — like a warm bath. This is the hottest month of the year in Haikou.
August	+31°	+26°	+31°	241 mm	A comfortable month: +31° by day without exhausting heat. One of the wettest months (241 mm): downpours can derail plans. 😊 light summer clothing. The sea is +31° — like a warm bath. Statistically the wettest month of the year.
September	+29°	+25°	+30°	223 mm	Warm and comfortable: +29° by day, +25° at night. It's a rainy month (223 mm) — an umbrella is a must. 😊 light summer clothing. The sea is +30° — like a warm bath.
October	+27°	+24°	+28°	160 mm	Gentle warmth — about +27° daytime, great walking weather. Frequent rain (160 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +28° — great for swimming.
November	+25°	+22°	+25°	46 mm	The most pleasant season: +25° by day, comfortable all day long. 😊 light summer clothing. Water at +25° — great for swimming. Weather-wise, one of the three best months to visit.
December	+22°	+19°	+22°	37 mm	One of the best times to visit: +22° by day, fresh nights. 🙂 a sweater for the evening. Water at +22° — great for swimming. The shortest daylight of the year — it gets dark early.

When to visit Haikou

✅ Recommended time to visit

🌟 Best time: February, March, November

Daytime air+22…+26°

Sea temperature+21…+25°

Precipitationoften

Why: comfortable +22…+26° by day, little rain.

⚠️ Doable, with caveats

🌤️ Shoulder season: January, April, May, June, October, December

Daytime air+21…+31°

Sea temperature+20…+31°

Precipitationoften

Why: noticeable rain risk (30–166 mm/month) — pack an umbrella and backup plans.

🔴 Not the best time

🌤️ Shoulder season: July, August, September

Daytime air+29…+31°

Sea temperature+30…+31°

Precipitationoften

Why: the rainy season (174–241 mm/month) — downpours almost daily.

Bottom line: the best time to visit Haikou is February, March, November, and the most comfortable months are February, March, November. The toughest months to visit are July, August, September: frequent rain.