October weather forecast
Sanya, China

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

Sanya marks the onset of October with an average high-temperature of a still hot 30.2°C (86.4°F), subtly divergent from September's 31.2°C (88.2°F). The average low-temperature of 23.4°C (74.1°F) is witnessed in Sanya during October.

Rainfall

In Sanya, in October, during 13.5 rainfall days, 235mm (9.25") of precipitation is typically accumulated. In Sanya, China, during the entire year, the rain falls for 111.1 days and collects up to 1392mm (54.8") of precipitation.

Sea temperature

In Sanya, the average seawater temperature in October is 27.2°C (81°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The average length of the day in October in Sanya is 11h and 44min.
On the first day of October in Sanya, China, sunrise is at 06:32 and sunset at 18:30. On the last day of the month, sunrise is at 06:41 and sunset at 18:10 CST.

Sunshine

The average sunshine in October in Sanya, China, is 6h.

UV index

The average daily maximum UV index in October is 10. A UV Index reading of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 10 in October transforms into the following instructions:
Take important precautions because unprotected skin can burn and be harmed swiftly. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Even when the sky is cloudy, apply generously and frequently reapply a sunscreen with SPF 30 or more, especially post every swim or outdoor exercise. Beware! Reflections from sand and water can intensify the Sun's UV radiation.