September weather forecastMonterey, LA
September
Weather in September
September, the first month of the autumn in Monterey, is still a tropical month, with an average temperature fluctuating between 68.2°F (20.1°C) and 87.4°F (30.8°C).Temperature
The onset of September marks an average high-temperature of a still hot 87.4°F (30.8°C), hardly differing from August's 91.2°F (32.9°C). The average nighttime temperature lowers to a pleasant 68.2°F (20.1°C) throughout September.Heat index
September's heat index is evaluated at a sweltering 102.2°F (39°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Remember that heat index calculations are made for conditions in the shade with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In Monterey, the average relative humidity in September is 75%.Rainfall
In Monterey, during September, the rain falls for 15.2 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 166.6 rainfall days, and 35.79" (909mm) of precipitation is accumulated.Snowfall
In Monterey, snow does not fall in March through November.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:30 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:52 pm CDT.
Sunshine
In Monterey, Louisiana, the average sunshine in September is 9.6h.UV index
In Monterey, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Monterey, LA
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (55.6°F).
- Average low temperature in September: 68.2°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).
Average pressure in September
Monterey, LA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Monterey, LA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in September
Monterey, LA
- Average humidity in September: 75%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Monterey, LA
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Monterey, LA
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is August (18.2 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in September
Monterey, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Monterey, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Monterey, LA
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Monterey, LA
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (10.6 days).
Average UV index in September
Monterey, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Monterey, LA
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Monterey, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
