Hainan
31.0°7-day forecastHainan
Life indicesfrom the province-wide high and low; see a city page for local values
Shorts and a light top; keep out of the midday sun
Big day–night swing, so carry an extra layer; Windy: a windproof outer layer helps
Dress for the mornings and evenings; avoid chills after sweating
Why: a day–night swing above 12°
Limit midday sun; hat, sunglasses and sunscreen
Skip outdoor exercise today; train indoors
Why: oppressive heat, strong wind
OutlookHighs stay between 30° and 36° all week, a swing of just 6°, good for outdoor plans.
Computed by Tempscape from published banding schemes, for reference only; see the methodology page.
The province’s hottest day of 2026 so far was Chengmai at 41.5° on Apr 10; the coldest Ledong at 13.5° on Jan 25; 18 cities have seen 35°+ days, 733 city-days in total; the wettest city this month is Wanning with 133.6 mm.
Temperature map19 monitored districts
City temperature ranking19 cities
Hainan's warmth builds after 2026-11-11
Sanya leads Hainan on 2026-11-11 with a cloudy high of 32.1°C. Lingao is coolest by daytime high at 24.2°C, producing a spread of 7.9°C across the province. Dongfang reaches 30.3°C and Ledong 30.1°C, both under cloudy skies, keeping the warmer end of the province above 30°C. Haikou is cooler at 24.5°C, while Baisha reaches 25°C under overcast skies. These differences make the choice of city important when judging how warm the afternoon will feel.
Rain affects Wenchang, Danzhou and Qionghai, so an umbrella is a useful addition for outings there. The seven-day trend is warmer by about 2°C, with a peak of 34.1°C. The provincial low is 18.6°C, contrasting with the warmer daytime conditions. Light clothing suits the hottest afternoons, while a removable layer gives more flexibility during cooler hours or when travelling between the warmer and cooler cities.
Compiled daily by Tempscape from the day’s temperature readings; not an official forecast or warning.
City travel guides6 cities
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City-level temperature ranking for Hainan on 2026-11-11. The provincial high is about 31.0° and the low about 18.6°, with conditions mainly cloudy. This page compares 19 monitored cities with a seven-day trend. Updated daily; informational only, not an official warning.