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 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 commences with an average high-temperature of a still moderately hot 27.3°C (81.1°F), showing little deviation from August's 25°C (77°F). San Bernardino observes an average nighttime temperature of 15.9°C (60.6°F) during September.Heat index
September's average heat index is computed to be 29°C (84.2°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.One should consider that heat index numbers are for shaded settings and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In September, the average relative humidity in San Bernardino is 69%.Rainfall
In San Bernardino, in September, during 9.4 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In San Bernardino, during the entire year, the rain falls for 153.2 days and collects up to 865mm (34.06") of precipitation.Daylight
The average length of the day in September in San Bernardino, Paraguay, is 11h and 58min.On the first day of the month, sunrise is at 06:00 and sunset at 17:37. On the last day of September, in San Bernardino, sunrise is at 05:29 and sunset at 17:48 -04.
Sunshine
In September, the average sunshine in San Bernardino, Paraguay, is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the temperature in September in San Bernardino?
What is the average humidity in September in San Bernardino?
How many days does it rain in September in San Bernardino?
What is the average length of the day in September in San Bernardino?
When is the sunrise / sunset in September in San Bernardino?
How many hours of sunshine does San Bernardino have in September?
What is the UV index intensity in September in San Bernardino?
Average temperature in September
San Bernardino, Paraguay
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is January (34°C).
The month with the lowest average high temperature is July (21.2°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is January (23.3°C).
The coldest month (with the lowest average low temperature) is July (12.5°C).
Average pressure in September
San Bernardino, Paraguay
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is July (1017.3mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
San Bernardino, Paraguay
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is March (9.4km/h).
Average humidity in September
San Bernardino, Paraguay
- Average humidity in September: 69%
The months with the highest relative humidity are May and June (84%).
The month with the lowest relative humidity is January (67%).
Average rainfall in September
San Bernardino, Paraguay
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (109mm).
The driest month (with the least rainfall) is August (18mm).
Average rainfall days in September
San Bernardino, Paraguay
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is January (16.7 days).
The month with the least rainy days is August (5.8 days).
Average daylight in September /
Average sunshine in September
San Bernardino, Paraguay
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is November (Average sunshine: 10h and 30min).
The month with the least sunshine is May (Average sunshine: 7h and 0min).
Average sunshine days in September
San Bernardino, Paraguay
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in September
San Bernardino, Paraguay
- Average UV index in September: 6
The months with the highest UV index are January, February, October and December (UV index 7).
The month with the lowest UV index is May (UV index 4).
Average cloud cover in September
San Bernardino, Paraguay
- Average cloud cover in September: 28
The month with the most cloud cover is May (Cloud cover 46).
The month with the least cloud cover is November (Cloud cover 26).
Average visibility in September
San Bernardino, Paraguay
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, July, August, September, October, November and December (9km).
The months with the lowest visibility are May and June (8km).
San Bernardino, Paraguay
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