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

The shift to September signals an average high-temperature of a still hot 30°C (86°F), subtly varied from August's tropical 30°C (86°F). Throughout September, the average low-temperature records at a moderately hot 23°C (73.4°F).

Rainfall

In Mai Châu, Vietnam, in September, it is raining for 16 days, with typically 247mm (9.72") of accumulated precipitation. Throughout the year, there are 158 rainfall days, and 1799mm (70.83") of precipitation is accumulated.

Daylight

In September, the average length of the day 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 in Mai Châu 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 value of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 12 in September translates into these instructions:
Practice every precaution of necessity, unprotected skin and eyes might burn in minutes. 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. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. After a swim or an outdoor workout, generously apply and regularly reapply a sunscreen with at least SPF 30, even if the day is cloudy.