Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Weather Guide
Haikou, Hainan, China Average Monthly Weather
Weather score57Good annual avg
Best months: November, October, April
Across the year, average daytime temperatures are around 28°C, sunshine averages 5.7h per day, and rainfall totals about 1697mm. Sea temperatures average 25°C across the year.
Annual weather
Annual averages
Temp
28°C
Rain
1697mm
Annual total
Sun
5.7h
Sea
25°C
Weather score
57
Good avg
Seasonal climate calendar
Trip feel
Wet
Rainfall averages 183mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Warm sea
Sea temperatures average 27°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Haikou, Hainan, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
October29°C average high
October is close to Haikou's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
October183mm average rain
October sits near Haikou's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
October6.1 hours average sun
October sits close to Haikou's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
October27°C average sea
October sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaMay to October
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
October64 weather score
October scores above Haikou's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsMarch to April and October to November
These months have the strongest weather score in the monthly averages.
