Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Observing a mild shift, the average high-temperature during September reduces from August's very hot 96.3°F (35.7°C) to a hot 86.9°F (30.5°C). During the month of September, Merkel anticipates a mean low-temperature of 68.9°F (20.5°C).Heat index
Throughout September, the heat index is evaluated at a tropical 91.4°F (33°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
September is the most humid month in Merkel, with an average relative humidity of 57%.Rainfall
The month with the most rainfall is September, when the rain falls for 10.9 days and typically aggregates up to 2.2" (56mm) of precipitation.Snowfall
In Merkel, snow does not fall in April through September.Daylight
In September, the average length of the day in Merkel is 12h and 22min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:04 pm. On the last day of September, in Merkel, sunrise is at 7:33 am and sunset at 7:25 pm CDT.
Sunshine
In September, the average sunshine in Merkel is 8.7h.UV index
In Merkel, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
How hot is September in Merkel?
What is the most humid month in Merkel?
What is the average humidity in September in Merkel?
What is the rainiest month in Merkel?
How many days does it rain in September in Merkel?
When it does not snow in Merkel?
Does it snow in Merkel in September?
How many hours of daylight does Merkel have in September?
What time are sunrise and sunset in September in Merkel?
How long on average sun shines in September in Merkel?
What is the UV index intensity in September in Merkel?
Average temperature in September
Merkel, TX
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in September
Merkel, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Merkel, TX
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is April (14.4mph).
The calmest month (with the lowest average wind speed) is September (10.2mph).
Average humidity in September
Merkel, TX
- Average humidity in September: 57%
The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Merkel, TX
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is September (2.2").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days in September
Merkel, TX
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is May (11.7 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Merkel, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Merkel, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Merkel, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Merkel, TX
- Average sunshine days in September: 17 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is May (16.3 days).
Average UV index in September
Merkel, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Merkel, TX
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 27).
The months with the least cloud cover are June and August (Cloud cover 18).
Average visibility in September
Merkel, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Merkel, Texas, USA
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