September weather forecastShafter, TX
September
Weather in September
September, the first month of the autumn in Shafter, is still a hot month, with an average temperature fluctuating between 87.1°F (30.6°C) and 70.2°F (21.2°C).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a tropical 93.6°F (34.2°C) in August to a still hot 87.1°F (30.6°C). September brings with it a nighttime average temperature of 70.2°F (21.2°C) in Shafter.Heat index
For most parts of September, the heat index is evaluated at a tropical 87.8°F (31°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The most humid month in Shafter is September, with an average relative humidity of 45%.Rainfall
September is the month with the most rainfall. Rain falls for 11.9 days and accumulates 1.18" (30mm) of precipitation.Snowfall
February through November are months without snowfall.Daylight
In Shafter, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:34 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 7:43 pm CDT.
Sunshine
In September, the average sunshine in Shafter, Texas, is 9.5h.UV index
In Shafter, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shafter, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is June (96.3°F).
The month with the lowest average high temperature is January (61.9°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Shafter, TX
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Shafter, TX
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.4mph).
Average humidity in September
Shafter, TX
- Average humidity in September: 45%
The month with the highest relative humidity is September (45%).
The month with the lowest relative humidity is April (23%).
Average rainfall in September
Shafter, TX
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is September (1.18").
The driest month (with the least rainfall) is February (0.12").
Average rainfall days in September
Shafter, TX
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Shafter, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Shafter, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Shafter, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).
Average sunshine days in September
Shafter, TX
- Average sunshine days in September: 13.2 days
The months with the most sunshine days are January and December (27.3 days).
The month with the least sunshine days is September (13.2 days).
Average UV index in September
Shafter, 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
Shafter, TX
- Average cloud cover in September: 20
The month with the most cloud cover is September (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 10).
Average visibility in September
Shafter, 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).





