September weather forecastRisso, Uruguay
September
Weather in September
The first month of the spring, September, is still a refreshing month in Risso, Uruguay, with an average temperature ranging between min 9.2°C (48.6°F) and max 19.5°C (67.1°F).Temperature
On the advent of September, Risso's average high-temperature exhibits a minor adjustment to a still enjoyable 19.5°C (67.1°F) from August's 17.8°C (64°F). The average low-temperature during September nights is a frosty 9.2°C (48.6°F).Humidity
In Risso, the average relative humidity in September is 79%.Rainfall
In Risso, during September, the rain falls for 10.5 days and regularly aggregates up to 59mm (2.32") of precipitation. Throughout the year, there are 111.9 rainfall days, and 698mm (27.48") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 54min.On the first day of September, sunrise is at 07:07 and sunset at 18:32. On the last day of the month, sunrise is at 06:27 and sunset at 18:52 -03.
Sunshine
In September, the average sunshine is 7.6h.UV index
In Risso, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Risso, Uruguay
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is January (32.4°C).
The month with the lowest average high temperature is July (15.1°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (6.9°C).
Average pressure in September
Risso, Uruguay
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).
Average wind speed in September
Risso, Uruguay
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is September (13.2km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).
Average humidity in September
Risso, Uruguay
- Average humidity in September: 79%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is January (57%).
Average rainfall in September
Risso, Uruguay
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is February (80mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in September
Risso, Uruguay
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is October (11.7 days).
The month with the least rainy days is June (7 days).
Average daylight in September /
Average sunshine in September
Risso, Uruguay
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in September
Risso, Uruguay
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is June (21.7 days).
The month with the least sunshine days is September (17.6 days).
Average UV index in September
Risso, Uruguay
- Average UV index in September: 4
The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is May (UV index 3).
Average cloud cover in September
Risso, Uruguay
- Average cloud cover in September: 36
The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in September
Risso, Uruguay
- Average visibility in September: 9km
The month with the highest visibility is January (10km).
The month with the lowest visibility is May (8km).
