October weather forecastSanya, China
October
Weather in October
Sanya in October radiates a welcoming atmosphere as temperatures, rainfall, and humidity begin to decrease. As a note, a significant decrease in rainfall occurs, scaling down from 251mm (9.88") in September to 235mm (9.25"). The arrival of autumn is further confirmed by shorter daylight hours. Despite these changes, October maintains a comfortable vibe that encourages outdoor activities. This month signifies a distinct shift from the wettest September to a comparatively cooler and drier spell.Temperature
The advent of October brings an average high-temperature of a still tropical 30.2°C (86.4°F), almost identical to the preceding month. During the month of October, Sanya's nighttime temperature lowers to an average of 23.4°C (74.1°F).Rainfall
In Sanya, in October, it is raining for 13.5 days, with typically 235mm (9.25") of accumulated precipitation. In Sanya, during the entire year, the rain falls for 111.1 days and collects up to 1392mm (54.8") of precipitation.Sea temperature
In Sanya, in October, the average water temperature is 27.2°C (81°F).Note: For any water activity, having surface water temperatures from 25°C (77°F) to 29°C (84.2°F) is considered outstanding and highly delightful for lengthened periods.
Daylight
In October, the average length of the day is 11h and 44min.On the first day of the month, sunrise is at 06:32 and sunset at 18:30. On the last day of October, sunrise is at 06:41 and sunset at 18:10 CST.
Sunshine
In October, the average sunshine is 6h.UV index
In Sanya, the average daily maximum UV index in October is 10. A UV Index of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 10 during October, leads to the following recommendations:
Precautions are essential; the risk of damage to unprotected skin and eyes is too high. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sanya, China
- Average high temperature in October: 30.2°C
The warmest month (with the highest average high temperature) is May (32°C).
The month with the lowest average high temperature is January (26.1°C).
- Average low temperature in October: 23.4°C
The month with the highest average low temperature is June (26.1°C).
The coldest month (with the lowest average low temperature) is January (18.5°C).
Average rainfall in October
Sanya, China
- Average rainfall in October: 234.5mm
The wettest month (with the highest rainfall) is September (251.4mm).
The driest month (with the least rainfall) is January (8mm).
Average rainfall days in October
Sanya, China
- Average rainfall days in October: 13.5 days
The month with the highest number of rainy days is September (17 days).
The month with the least rainy days is January (3.4 days).
Average sea temperature in October
Sanya, China
- Average sea temperature in October: 27.2°C
The best month for swimming (with the highest average sea temperature) is July (29.8°C).
The coldest month (with the lowest average sea temperature) is February (23°C).
Average daylight in October /
Average sunshine in October
Sanya, China
- Average daylight in October: 11h and 42min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in October: 6h
The months with the most sunshine are May and July (Average sunshine: 7h).
The months with the least sunshine are January, February and March (Average sunshine: 5h).
Average UV index in October
Sanya, China
- Average UV index in October: 10
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).








