August weather forecast
Manhattan, KS

In August, Manhattan, Kansas, experiences a continuation of the summer heat, only second to July's extreme summer conditions. Daylight duration starts to reduce signaling the eventual end of the hot season. Despite the prevailing heat, late afternoon thunderstorms are not uncommon, bringing temporary relief. Overall, the heat persists with days remaining noticeably longer than nights. The main characteristics of August are sustained high temperatures averaging at a sweltering 87.4°F (30.8°C) and a marginally increased average rainfall of 2.56" (65mm).

Temperature

August registers an average high-temperature of a still hot 87.4°F (30.8°C), slightly varied from July's 89.1°F (31.7°C). Manhattan cools down to an average low-temperature of 66.4°F (19.1°C) throughout the month of August.

Heat index

In August, the heat index is appraised at a fiery hot 98.6°F (37°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in August is 69%.

Rainfall

In Manhattan, during August, the rain falls for 12.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 120.6 rainfall days, and 21.38" (543mm) of precipitation is accumulated.

Snowfall

In Manhattan, snow does not fall in May through September.

Daylight

In Manhattan, the average length of the day in August is 13h and 39min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:37 pm. On the last day of August, sunrise is at 6:54 am and sunset at 7:57 pm CDT.

Sunshine

In August, the average sunshine is 10.6h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 in August translates into this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.