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
September's arrival in Supai subtly correlates with a reduction in the average high-temperature, down from a moderately hot 84.2°F (29°C) in August to a still warm 78.3°F (25.7°C). Nighttime temperatures in September average to a refreshing 57.2°F (14°C) in Supai.Humidity
In Supai, the average relative humidity in September is 36%.Rainfall
In Supai, during September, the rain falls for 3.3 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Supai, during the entire year, the rain falls for 46.7 days and collects up to 4.29" (109mm) of precipitation.Snowfall
In Supai, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:02 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:15 pm MST.
Sunshine
The average sunshine in September is 9.8h.UV index
In September, the average daily maximum UV index in Supai is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are September temperatures in Supai?
What is the average humidity in September in Supai?
How much does it rain in Supai in September?
When it does not snow in Supai?
Does it snow in Supai in September?
What is the average length of the day in September in Supai?
What time are sunrise and sunset in September in Supai?
How many hours of sunshine does Supai have in September?
What is the UV index intensity in September in Supai?
Average temperature in September
Supai, AZ
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in September
Supai, AZ
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Supai, AZ
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is January (6.6mph).
Average humidity in September
Supai, AZ
- Average humidity in September: 36%
The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
Supai, AZ
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is March (0.51").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Supai, AZ
- Average rainfall days in September: 3.3 days
The month with the highest number of rainy days is July (6 days).
The month with the least rainy days is June (1.9 days).
Average snowfall in September
Supai, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Supai, AZ
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Supai, AZ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Supai, AZ
- Average sunshine days in September: 25.3 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is February (21.4 days).
Average UV index in September
Supai, AZ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Supai, AZ
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in September
Supai, 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).
Supai, Arizona, USA
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