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 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
During the shift to September, Tacna records a mild decrease in average high-temperature, moving from a torrid 103.6°F (39.8°C) in August to a still sweltering 97.9°F (36.6°C). Tacna's temperature lowers to a mean of 80.4°F (26.9°C) during the nights in September.Humidity
The average relative humidity in September in Tacna is 31%.Rainfall
In Tacna, Arizona, in September, it is raining for 5.6 days, with typically 0.63" (16mm) of accumulated precipitation. In Tacna, Arizona, during the entire year, the rain falls for 38.1 days and collects up to 3.9" (99mm) of precipitation.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:00 pm. On the last day of September, sunrise is at 6:29 am and sunset at 6:21 pm MST.
Sunshine
In Tacna, the average sunshine in September is 9.8h.UV index
In Tacna, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Tacna in September?
What is the average humidity in September in Tacna?
How many days does it rain in September in Tacna?
What is the average length of the day in September in Tacna?
When are sunrise and sunset in September in Tacna?
How many hours of sunshine does Tacna have in September?
What is the UV index intensity in September in Tacna?
Average temperature in September
Tacna, AZ
- Average high temperature in September: 97.9°F
The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.9°F).
- Average low temperature in September: 80.4°F
The month with the highest average low temperature is August (85.6°F).
The coldest months (with the lowest average low temperature) are January and December (49.8°F).
Average pressure in September
Tacna, AZ
- Average pressure in September: 29.78"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).
Average wind speed in September
Tacna, AZ
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is July (8.4mph).
The calmest months (with the lowest average wind speed) are November and December (6mph).
Average humidity in September
Tacna, AZ
- Average humidity in September: 31%
The month with the highest relative humidity is December (39%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
Tacna, AZ
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is July (0.71").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Tacna, AZ
- Average rainfall days in September: 5.6 days
The month with the highest number of rainy days is July (7.6 days).
The month with the least rainy days is May (0.9 days).
Average daylight in September /
Average sunshine in September
Tacna, AZ
- 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 0min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Tacna, AZ
- Average sunshine days in September: 22.3 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.8 days).
Average UV index in September
Tacna, AZ
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in September
Tacna, AZ
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Tacna, AZ
- 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).
Tacna, Arizona, USA
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