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 heralds a minor drop in average high-temperature, sliding from August's moderately hot 85.6°F (29.8°C) to a still warm 77.9°F (25.5°C). Wellfleet reports a marked divergence from daytime peaks throughout September, with lows averaging at a mild 56.3°F (13.5°C).Humidity
September and October, with an average relative humidity of 57%, are the least humid months.Rainfall
In Wellfleet, in September, it is raining for 10.4 days, with typically 1.22" (31mm) of accumulated precipitation. In Wellfleet, during the entire year, the rain falls for 117.4 days and collects up to 17.99" (457mm) of precipitation.Snowfall
In Wellfleet, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 7:10 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:26 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What are the least humid months in Wellfleet?
What is the average humidity in September in Wellfleet?
How many days does it rain in September?
When it does not snow in Wellfleet?
Does it snow in September?
How many hours of daylight does Wellfleet have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Wellfleet have in September?
How high is the UV index in September in Wellfleet?
Average temperature in September
Wellfleet, NE
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Wellfleet, NE
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Wellfleet, NE
- Average wind speed in September: 11.1mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).
Average humidity in September
Wellfleet, NE
- Average humidity in September: 57%
The month with the highest relative humidity is January (72%).
The months with the lowest relative humidity are September and October (57%).
Average rainfall in September
Wellfleet, NE
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Wellfleet, NE
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is December (3.7 days).
Average snowfall in September
Wellfleet, NE
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wellfleet, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wellfleet, NE
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Wellfleet, NE
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (22 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Wellfleet, NE
- 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
Wellfleet, NE
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are July and September (Cloud cover 21).
Average visibility in September
Wellfleet, NE
- 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).
Wellfleet, Nebraska, USA
Weather forecast for your location
2. Allow the app to use your location