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, noted for its average high-temperature of 31.1°C (88°F) and an average low-temperature of 17.9°C (64.2°F), is considered the warmest month.Heat index
For September, the heat index is evaluated at a hot 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The least humid month in Ribeirão Preto is September, with an average relative humidity of 54%.Rainfall
In Ribeirão Preto, in September, it is raining for 10.4 days, with typically 45mm (1.77") of accumulated precipitation. In Ribeirão Preto, during the entire year, the rain falls for 221 days and collects up to 1294mm (50.94") of precipitation.Daylight
In September, the average length of the day in Ribeirão Preto is 11h and 59min.On the first day of the month, sunrise is at 06:19 and sunset at 18:02. On the last day of September, in Ribeirão Preto, sunrise is at 05:52 and sunset at 18:09 -03.
Sunshine
September has the most sunshine of the year, with an average of 9.4h of sunshine.UV index
January, March, July through November, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What part of the year is the hottest in Ribeirão Preto?
How hot is September in Ribeirão Preto?
What is the least humid month in Ribeirão Preto?
What is the average humidity in September in Ribeirão Preto?
How much does it rain in Ribeirão Preto in September?
What is the average length of the day in September in Ribeirão Preto?
When are sunrise and sunset in September in Ribeirão Preto?
What month has the most sunshine in Ribeirão Preto?
How long on average sun shines in September in Ribeirão Preto?
What is the month with the highest UV index in Ribeirão Preto?
How high is the UV index in September in Ribeirão Preto?
Average temperature in September
Ribeirão Preto, Brazil
- Average high temperature in September: 31.1°C
The warmest month (with the highest average high temperature) is September (31.1°C).
The month with the lowest average high temperature is June (24.2°C).
- Average low temperature in September: 17.9°C
The month with the highest average low temperature is December (19.9°C).
The coldest month (with the lowest average low temperature) is June (14.3°C).
Average pressure in September
Ribeirão Preto, Brazil
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1011.3mbar).
Average wind speed in September
Ribeirão Preto, Brazil
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is September (8.9km/h).
The calmest month (with the lowest average wind speed) is February (6.2km/h).
Average humidity in September
Ribeirão Preto, Brazil
- Average humidity in September: 54%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (54%).
Average rainfall in September
Ribeirão Preto, Brazil
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is January (238mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in September
Ribeirão Preto, Brazil
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is December (29.7 days).
The month with the least rainy days is August (4.6 days).
Average daylight in September /
Average sunshine in September
Ribeirão Preto, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in September
Ribeirão Preto, Brazil
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is December (0.5 days).
Average UV index in September
Ribeirão Preto, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, March, July, August, September, October and November (UV index 6).
The months with the lowest UV index are February, April, May, June and December (UV index 5).
Average cloud cover in September
Ribeirão Preto, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Ribeirão Preto, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April and May (7km).
Ribeirão Preto, Brazil
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