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
Saint Martinville measures an average high-temperature of a still hot 86.7°F (30.4°C) in September, nearly consistent with the preceding month. Throughout September, Saint Martinville witnesses a consistent average low-temperature of 70.7°F (21.5°C).Heat index
Throughout September, the heat index is evaluated at a fiery hot 102.2°F (39°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In Saint Martinville, the average relative humidity in September is 79%.Rainfall
In Saint Martinville, in September, it is raining for 14.7 days, with typically 1.06" (27mm) of accumulated precipitation. In Saint Martinville, during the entire year, the rain falls for 139.5 days and collects up to 15.47" (393mm) of precipitation.Snowfall
February through November are months without snowfall in Saint Martinville.Daylight
In September, the average length of the day in Saint Martinville is 12h and 20min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:29 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 10h.UV index
In Saint Martinville, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How hot is it in Saint Martinville in September?
What is the average humidity in September in Saint Martinville?
How many days does it rain in September in Saint Martinville?
When it does not snow in Saint Martinville?
What is the average length of the day in September in Saint Martinville?
What time are sunrise and sunset in September in Saint Martinville?
How long on average sun shines in September in Saint Martinville?
How high is the UV index in September in Saint Martinville?
Average temperature in September
Saint Martinville, LA
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 70.7°F
The months with the highest average low temperature are July and August (75°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).
Average pressure in September
Saint Martinville, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.96"Hg).
Average wind speed in September
Saint Martinville, LA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Saint Martinville, LA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Saint Martinville, LA
- Average rainfall in September: 1.06"
The wettest months (with the highest rainfall) are July and August (2.44").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in September
Saint Martinville, LA
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is August (19 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in September
Saint Martinville, LA
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Saint Martinville, LA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Saint Martinville, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Saint Martinville, LA
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (8.2 days).
Average UV index in September
Saint Martinville, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Saint Martinville, LA
- Average cloud cover in September: 28
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in September
Saint Martinville, LA
- 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).
Saint Martinville, Louisiana, USA
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