
Weather in Haikou tomorrow, Friday, August 21
Weather in Haikou tomorrow: day +33°, night +26°, Partly cloudy. Forecast by time of day and hourly below.
Hourly forecast for tomorrow in Haikou
Weather in Haikou by time of day 🌅
Weather forecast in Haikou tomorrow 📅
📒 Weather diary in Haikou
Ready-made observation table for August: past days are already filled in with weather-station data — for school and beyond. Open the diary →
✉️ Weather forecast by email
Get the forecast for this city by email — every day at 17:00 Moscow time.

FAQ about weather in Haikou ❓
What's the weather in Haikou tomorrow?
Tomorrow +33° by day, +26° at night, partly cloudy.
Will it rain in Haikou tomorrow?
Yes, rain is possible tomorrow — take an umbrella.
What to wear in Haikou tomorrow?
Warm — light clothes. Take a raincoat.
Sunrise and sunset in Haikou?
Sunrise 06:20, sunset 19:05, day length 12h 45m.
Will it be hot in Haikou?
Up to +29° by day — hot. Drink more water, avoid the sun from noon to 4 PM, wear light clothes and a hat.
Do I need sunscreen in Haikou?
Yes, the UV index is 12 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
Do I need rubber boots in Haikou?
In rain and puddles, rubber boots or waterproof shoes will come in handy.
How long is it safe to stay in the sun in Haikou?
At UV 12, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
Weather in Haikou — in detail
Weather forecast in Haikou tomorrow: from +25° to +33° day and night. Warmest day — Friday, August 21 (up to +33°). Coolest — Thursday, August 20 (+25°). No significant precipitation. See also the forecast for 3 days and for the week.
To quickly check the weather in Haikou anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.