May weather forecast
Mai Châu, Vietnam

In May, the transition towards the rainy season becomes more apparent. The mercury reaches its peak, touching a hot 31°C (87.8°F) from a base of 23°C (73.4°F). Rainfall also peaks considerably, reaching up to 197mm (7.76") and heralding the onset of the wettest part of the year. The surge in rainfall and temperature continues into June, sustaining the weather pattern prevalent in the wet season.

Temperature

In Mai Châu, the warmest months are May through July, registering an average high-temperature of 31°C (87.8°F).

Rainfall

In Mai Châu, in May, during 16 rainfall days, 197mm (7.76") of precipitation is typically accumulated. Throughout the year, there are 158 rainfall days, and 1799mm (70.83") of precipitation is accumulated.

Daylight

In Mai Châu, the average length of the day in May is 13h and 7min.
On the first day of May, sunrise is at 05:29 and sunset at 18:24. On the last day of the month, sunrise is at 05:18 and sunset at 18:36 +07.

Sunshine

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

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 12 in May converts into the following recommendations:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. One must apply and reapply generously an SPF 30+ broad-spectrum sunscreen every two hours or after an outdoor workout or swim.