September weather forecast
Mai Châu, Vietnam

September presents a slight retreat in the wet season while retaining significant rainfall. Temperatures obtain a similar pattern, ranging from a warm 23°C (73.4°F) to 30°C (86°F). The imminent rainfall decrease indicates the onset of the retreating monsoon phase. The weather becomes marginally cooler and less rainy into October, alluding to the upcoming dry season.

Temperature

Mai Châu enters September recording an average high-temperature of a still hot 30°C (86°F), consistent with the temperature of the month gone by. In Mai Châu, in September, the average low-temperature is a warm 23°C (73.4°F).

Rainfall

In September, the rain falls for 16 days. Throughout September, 247mm (9.72") of precipitation is accumulated. In Mai Châu, during the entire year, the rain falls for 158 days and collects up to 1799mm (70.83") of precipitation.

Daylight

The average length of the day in September in Mai Châu is 12h and 16min.
On the first day of the month, sunrise is at 05:43 and sunset at 18:15. On the last day of September, sunrise is at 05:50 and sunset at 17:48 +07.

Sunshine

The months with the most sunshine are May, July and September, with an average of 6h of sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a regular UV index of 12 translates into these guidelines:
Employ all crucial safeguards, unprotected skin could burn rapidly. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Even on overcast days, apply and frequently reapply a sunscreen with SPF 30 or more, specifically after a swim or outdoor workout.