September weather forecastDos Rios, CA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Dos Rios, California, with an average temperature fluctuating between 80.6°F (27°C) and 49.8°F (9.9°C).Temperature
September's onset sees an average high-temperature of a still warm 80.6°F (27°C), exhibiting a slight fluctuation from the previous month. Dos Rios documents a significant temperature variance in September, with the mean nighttime lows settling at a frosty 49.8°F (9.9°C).Heat index
September's average heat index is evaluated at 82.4°F (28°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In Dos Rios, the average relative humidity in September is 56%.Rainfall
July through September are months with the least rain when the rain falls for 1.8 days and typically aggregates up to 0.08" (2mm) of rain.Snowfall
In Dos Rios, snow does not fall in April through October and December.Daylight
In September, the average length of the day in Dos Rios is 12h and 26min.On the first day of September in Dos Rios, sunrise is at 6:42 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:56 pm PDT.
Sunshine
In September, the average sunshine in Dos Rios is 10.9h.UV index
In Dos Rios, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dos Rios, CA
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (51.3°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (53.4°F).
The coldest months (with the lowest average low temperature) are February, March and December (35.2°F).
Average pressure in September
Dos Rios, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in September
Dos Rios, CA
- Average wind speed in September: 3.7mph
The windiest months (with the highest average wind speed) are March and April (4.6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Dos Rios, CA
- Average humidity in September: 56%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is July (54%).
Average rainfall in September
Dos Rios, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (2.28").
The driest months (with the least rainfall) are July, August and September (0.08").
Average rainfall days in September
Dos Rios, CA
- Average rainfall days in September: 1.8 days
The month with the highest number of rainy days is March (10.3 days).
The months with the least rainy days are August and September (1.8 days).
Average snowfall in September
Dos Rios, CA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Dos Rios, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Dos Rios, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Dos Rios, CA
- Average sunshine days in September: 27.5 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (20.2 days).
Average UV index in September
Dos Rios, CA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in September
Dos Rios, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in September
Dos Rios, CA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).
