September weather forecast and climate
Harmony, CA

Weather in September

The first month of the autumn, September, is also a moderately hot month in Harmony, California, with average temperature fluctuating between 75.4°F (24.1°C) and 59.9°F (15.5°C).

Temperature

With an average high-temperature of 75.4°F (24.1°C) and an average low-temperature of 59.9°F (15.5°C), September is the warmest month.

Humidity

In Harmony, California, the average relative humidity is 62%.

Rainfall

In Harmony, during 1.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, in Harmony, there are 46.6 rainfall days, and 6.73" (171mm) of precipitation is accumulated.

Daylight

In Harmony, the average length of the day in September is 12.4h.

Sunshine

The average sunshine in Harmony is 11.4h.

UV index

In Harmony, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Harmony?

With an average high-temperature of 75.4°F (24.1°C) and an average low-temperature of 59.9°F (15.5°C), September is the warmest month.

What is the temperature in September in Harmony?

In September, in Harmony, California, the average high-temperature is 75.4°F (24.1°C), and the average low-temperature is 59.9°F (15.5°C).

What is the average humidity in September in Harmony?

In Harmony, the average relative humidity in September is 62%.

How much does it rain in Harmony in September?

In Harmony, California, in September, it is raining for 1.5 days, with typically 0.12" (3mm) of accumulated precipitation.

How many hours of daylight does Harmony have in September?

In September, the average length of the day is 12.4h.

How many hours of sunshine does Harmony have in September?

In Harmony, the average sunshine in September is 11.4h.

What is the UV index intensity in September in Harmony?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Harmony, CA

Average temperature in September - Harmony, CA
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is September (75.4°F).
The month with the lowest average high temperature is December (59.4°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (47.8°F).

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Average pressure in September
Harmony, CA

Average pressure in September - Harmony, CA
  • Average pressure in September: 29.91"

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is September (29.91").

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Average wind speed in September
Harmony, CA

Average wind speed in September - Harmony, CA
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is May (8.6mph).
The calmest months (with the lowest average wind speed) are July, August, September, October and November (6.5mph).

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Average humidity in September
Harmony, CA

Average humidity in September - Harmony, CA
  • Average humidity in September: 62%

The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is October (61%).

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Average rainfall in September
Harmony, CA

Average rainfall in September - Harmony, CA
  • Average rainfall in September: 0.12"

The wettest months (with the highest rainfall) are March and December (1.3").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in September
Harmony, CA

Average rainfall days in September - Harmony, CA
  • Average rainfall days in September: 1.5 days

The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in September /
Average sunshine in September
Harmony, CA

Average daylight in September / Average sunshine in September - Harmony, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 11.4h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.3h).

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Average sunshine days in September
Harmony, CA

Average sunshine days in September - Harmony, CA
  • Average sunshine days in September: 27.7 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (21.2 days).

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Average UV index in September
Harmony, CA

Average UV index in September - Harmony, CA
  • Average UV index in September: 5

The month with the highest UV index is August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in September
Harmony, CA

Average cloud cover in September - Harmony, CA
  • Average cloud cover in September: 8

The month with the most cloud cover is March (Cloud cover 28).
Months with the least cloud cover are July, August and September (Cloud cover 8).

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Average visibility in September
Harmony, CA

Average visibility in September - Harmony, CA
  • Average visibility in September: 6mi

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

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