Lake Havasu City
Arizona, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Lake Havasu City, AZ

A wide aerial panorama of Lake Havasu City in Arizona, with a view of the iconic London Bridge
A wide aerial panorama of Lake Havasu City in Arizona, with a view of the iconic London Bridge
September, the first month of the autumn, in Lake Havasu City, is still a torrid month, with average temperature fluctuating between 79.2°F (26.2°C) and 95.9°F (35.5°C).

Temperature

In Lake Havasu City, the average high-temperature slightly decreases, from a very hot 101.8°F (38.8°C) in August, to a still torrid 95.9°F (35.5°C). The average low-temperature, in September, is 79.2°F (26.2°C).

Humidity

In Lake Havasu City, Arizona, the average relative humidity in September is 25%.

Rainfall

In Lake Havasu City, Arizona, during September, the rain falls for 5.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Lake Havasu City, during the entire year, the rain falls for 52.1 days and collects up to 6.26" (159mm) of precipitation.

Snowfall

January through November are months without snowfall.

Daylight

The average length of the day in Lake Havasu City is 12.4h.

Sunshine

The average sunshine in Lake Havasu City, Arizona, is 10h.

UV index

In September, the average daily maximum UV index in Lake Havasu City is 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Lake Havasu City?

In September, the average high-temperature is 95.9°F (35.5°C), and the average low-temperature is 79.2°F (26.2°C).

What is the average humidity in September in Lake Havasu City?

In Lake Havasu City, the average relative humidity in September is 25%.

How much does it rain in Lake Havasu City in September?

In Lake Havasu City, during September, the rain falls for 5.5 days and regularly aggregates up to 0.63" (16mm) of precipitation.

When it does not snow in Lake Havasu City?

January through November are months without snowfall.

What is the average length of the day in September in Lake Havasu City?

In September, the average length of the day in Lake Havasu City is 12.4h.

How long on average sun shines in September in Lake Havasu City?

The average sunshine in September in Lake Havasu City, Arizona, is 10h.

What is the UV index intensity in September in Lake Havasu City?

In September, the average daily maximum UV index in Lake Havasu City, Arizona, is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.
Average temperature in September - Lake Havasu City, AZ
  • Average high temperature in September: 95.9°F

The warmest month (with the highest average high temperature) is July (102.7°F).
The month with the lowest average high temperature is December (60.1°F).

  • Average low temperature in September: 79.2°F

The month with the highest average low temperature is August (85.5°F).
The coldest month (with the lowest average low temperature) is December (46.6°F).

Average humidity in September - Lake Havasu City, AZ
  • Average humidity in September: 25%

The month with the highest relative humidity is January (40%).
The month with the lowest relative humidity is June (15%).

Average rainfall in September - Lake Havasu City, AZ
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is August (1.02").
The driest month (with the lowest rainfall) is June (0.04").

Average rainfall days in September - Lake Havasu City, AZ
  • Average rainfall days in September: 5.5 days

The month with the highest number of rainy days is July (9.3 days).
The month with the lowest number of rainy days is June (0.8 days).

Average snowfall days in September - Lake Havasu City, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the lowest number of 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 - Lake Havasu City, AZ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 10h

The month with most sunshine is August (Average sunshine: 12.2h).
The month with least sunshine is December (Average sunshine: 6.8h).

Average UV index in September - Lake Havasu City, AZ
  • Average UV index in September: 7

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).