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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a sweltering 95.5°F (35.3°C) in August to a hot 90°F (32.2°C). Del Rio encounters a substantial decline from its daily high to a low-temperature of 59.7°F (15.4°C) during September nights.Heat index
During September, the heat index is appraised at a hot 91.4°F (33°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In Del Rio, the average relative humidity in September is 41%.Rainfall
In September, in Del Rio, California, the rain falls for 2 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. In Del Rio, during the entire year, the rain falls for 59.3 days and collects up to 8.23" (209mm) of precipitation.Snowfall
In Del Rio, snow does not fall in January through November.Daylight
In Del Rio, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:48 pm PDT.
Sunshine
In Del Rio, the average sunshine in September is 11.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
How hot does it get in Del Rio in September?
What is the average humidity in September in Del Rio?
How many days does it rain in September in Del Rio?
When it does not snow in Del Rio?
How many hours of daylight does Del Rio have in September?
What time are sunrise and sunset in September in Del Rio?
How many hours of sunshine does Del Rio have in September?
What is the UV index intensity in September in Del Rio?
Average temperature in September
Del Rio, CA
- Average high temperature in September: 90°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in September
Del Rio, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Del Rio, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in September
Del Rio, CA
- Average humidity in September: 41%
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).
Average rainfall in September
Del Rio, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is March (1.65").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Del Rio, CA
- Average rainfall days in September: 2 days
The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (0.7 days).
Average snowfall in September
Del Rio, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Del Rio, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Del Rio, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Del Rio, CA
- Average sunshine days in September: 26.8 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (18.7 days).
Average UV index in September
Del Rio, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Del Rio, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Del Rio, CA
- 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).
Del Rio, California, USA
Weather forecast for your location
2. Allow the app to use your location
