During
August,
Yan'an experiences a slight dip in temperatures, dropping to 28.2°C (82.8°F) from
July's record high. The reduced heat accompanied by a minor decrease in daylight hours indicates the approaching end of summer. August in Yan'an also experiences the year's highest levels of humidity, making the weather considerably muggy. As rainfall continues in full swing, the city maintains its verdant appeal despite the humidity.
Temperature
Yan'an experiences a minor change to a still warm 28.2°C (82.8°F) in average high-temperature during August, closely reflecting July. August's average low-temperature reading settles at a comfortable 16.7°C (62.1°F).
Heat index
For August, the heat index is calculated to be a hot 32°C (89.6°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
August and
September, with an average relative humidity of 74%, are the most humid months in Yan'an,
China.
Rainfall
August is the month with the most rainfall in Yan'an. Rain falls for 11.8 days and accumulates 118mm (4.65") of precipitation.
Daylight
The average length of the day in August in Yan'an is 13h and 32min.
On the first day of August, sunrise is at 05:48 and sunset at 19:48. On the last day of the month, sunrise is at 06:12 and sunset at 19:11 CST.
Sunshine
In Yan'an, the average sunshine in August is 6.9h.