May weather forecast
Xi'an, China

With temperatures escalating from 21°C (69.8°F) to 26.1°C (79°F), the warmth of May, quite distinctively, introduces the hot season in Xi'an. Continued lengthening of daylight, paired with greater sunshine hours, marks the days as visibly brighter. The weather tends to be humid, mirroring a slight rise from April's levels. May, moreover, graces the city with substantial rainfall, setting the stage for the incoming rainy season in June. It's a period of refreshing yet hot weather, with temperatures considerably warmer than in preceding months.

Temperature

With the onset of May, Xi'an experiences a temperature shift, with the average high-temperature moving from a pleasant 21°C (69.8°F) in April to a warm 26.1°C (79°F). In Xi'an, an average low-temperature of 14.2°C (57.6°F) is recorded during May nights.

Humidity

In Xi'an, the average relative humidity in May is 68%.

Rainfall

In Xi'an, in May, during 8.9 rainfall days, 60mm (2.36") of precipitation is typically accumulated. In Xi'an, during the entire year, the rain falls for 90.3 days and collects up to 553mm (21.77") of precipitation.

Daylight

In May, the average length of the day in Xi'an, China, is 13h and 57min.
On the first day of the month, sunrise is at 05:54 and sunset at 19:28. On the last day of May, in Xi'an, China, sunrise is at 05:33 and sunset at 19:50 CST.

Sunshine

The average sunshine in May is 5.5h.

UV index

In May, the average daily maximum UV index in Xi'an is 10. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 10 during May leads to these instructions:
Protection should always be a priority. Skin and eyes are vulnerable without it. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.