September weather forecast
Rockaway Beach, MO

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Weather in September

September, the first month of the autumn in Rockaway Beach, is still a warm month, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 81.7°F (27.6°C).

Temperature

Rockaway Beach's progression into September involves a minor drop in the average high-temperature, slightly receding from a tropical 88.9°F (31.6°C) in August to a moderately hot 81.7°F (27.6°C). Despite the hot September days, Rockaway Beach's nights see an average temperature plunge to a mild 59.7°F (15.4°C).

Heat index

During September, the heat index is evaluated at a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Rockaway Beach, the average relative humidity in September is 74%.

Rainfall

In Rockaway Beach, during September, the rain falls for 11.8 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, in Rockaway Beach, there are 142.8 rainfall days, and 30.47" (774mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Rockaway Beach, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:57 pm CDT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Act with care - The need to guard against sun damage is communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Rockaway Beach?

The high-temperature, in September, in Rockaway Beach, records 81.7°F (27.6°C), while the low-temperature is 59.7°F (15.4°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in September in Rockaway Beach?

The average relative humidity in September in Rockaway Beach, Missouri, is 74%.

How much does it rain in Rockaway Beach in September?

In Rockaway Beach, during September, the rain falls for 11.8 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow in Rockaway Beach?

In Rockaway Beach, Missouri, snow does not fall in May through October.

What is the average length of the day in September in Rockaway Beach?

In September, the average day length is 12h and 24min.

When is the sunrise / sunset in September in Rockaway Beach?

On the first day of September in Rockaway Beach, Missouri, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:57 pm CDT.

How many hours of sunshine does Rockaway Beach have in September?

In September, the average sunshine duration in Rockaway Beach, Missouri, is 9.4h.

What is the UV index reading in September in Rockaway Beach?

The average daily maximum UV index in September in Rockaway Beach is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rockaway Beach, MO

Average temperature in September - Rockaway Beach, MO
  • Average high temperature in September: 81.7°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in September
Rockaway Beach, MO

Average pressure in September - Rockaway Beach, MO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Rockaway Beach, MO

Average wind speed in September - Rockaway Beach, MO
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January, February, March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in September
Rockaway Beach, MO

Average humidity in September - Rockaway Beach, MO
  • Average humidity in September: 74%

The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).

Average rainfall in September
Rockaway Beach, MO

Average rainfall in September - Rockaway Beach, MO
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days in September
Rockaway Beach, MO

Average rainfall days in September - Rockaway Beach, MO
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in September
Rockaway Beach, MO

Average snowfall in September - Rockaway Beach, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Rockaway Beach, MO

Average snowfall days in September - Rockaway Beach, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Rockaway Beach, MO

Average daylight in September / Average sunshine in September - Rockaway Beach, MO
  • 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).

Average sunshine days in September
Rockaway Beach, MO

Average sunshine days in September - Rockaway Beach, MO
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (12.2 days).

Average UV index in September
Rockaway Beach, MO

Average UV index in September - Rockaway Beach, MO
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Rockaway Beach, MO

Average cloud cover in September - Rockaway Beach, MO
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 28).

Average visibility in September
Rockaway Beach, MO

Average visibility in September - Rockaway Beach, MO
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Rockaway Beach, Missouri, USA

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