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 snowfall in September
- Average snowfall 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
Uyuni's transition from August to September introduces an average high-temperature of a still mild 15.7°C (60.3°F), marking an insignificant variation from the 13°C (55.4°F). Uyuni experiences a substantial divergence from daytime highs in September, with average lows hovering around an icy 2.2°C (36°F).Humidity
In September, the average relative humidity in Uyuni is 27%.Rainfall
In Uyuni, Bolivia, in September, it is raining for 2.5 days, with typically 4mm (0.16") of accumulated precipitation. In Uyuni, during the entire year, the rain falls for 92.6 days and collects up to 342mm (13.46") of precipitation.Snowfall
Months with snowfall are May, July through September. September is the last month it regularly snows. During 0.3 snowfall days, in September, Uyuni aggregates 3mm (0.12") of snow. In Uyuni, during the entire year, snow falls for 1.3 days and aggregates up to 21mm (0.83") of snow.Daylight
The average length of the day in September in Uyuni, Bolivia, is 11h and 59min.On the first day of September in Uyuni, sunrise is at 06:35 and sunset at 18:18. On the last day of the month, sunrise is at 06:08 and sunset at 18:25 -04.
Sunshine
The average sunshine in September in Uyuni, Bolivia, is 9.9h.UV index
The months with the highest UV index are January through March, September through December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Uyuni in September?
What is the average humidity in September in Uyuni?
How much does it rain in Uyuni in September?
What is the last month it snows in Uyuni?
What is the average length of the day in September in Uyuni?
When is the sunrise / sunset in September in Uyuni?
How many hours of sunshine does Uyuni have in September?
When is the highest UV index in Uyuni?
How high is the UV index in September in Uyuni?
Average temperature in September
Uyuni, Bolivia
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is November (19.5°C).
The month with the lowest average high temperature is July (10.8°C).
- Average low temperature in September: 2.2°C
The months with the highest average low temperature are February and December (9.3°C).
The coldest month (with the lowest average low temperature) is July (-1.1°C).
Average pressure in September
Uyuni, Bolivia
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is June (1019.9mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).
Average wind speed in September
Uyuni, Bolivia
- Average wind speed in September: 15.4km/h
The windiest month (with the highest average wind speed) is September (15.4km/h).
The calmest month (with the lowest average wind speed) is April (11.9km/h).
Average humidity in September
Uyuni, Bolivia
- Average humidity in September: 27%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is October (24%).
Average rainfall in September
Uyuni, Bolivia
- Average rainfall in September: 4mm
The wettest month (with the highest rainfall) is January (105mm).
The driest month (with the least rainfall) is June (0mm).
Average rainfall days in September
Uyuni, Bolivia
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is January (20.3 days).
The month with the least rainy days is June (0.3 days).
Average snowfall in September
Uyuni, Bolivia
- Average snowfall in September: 3mm
The month with the highest snowfall is July (15mm).
The months with the least snowfall are January, February, March, April, June, October, November and December (0mm).
Average snowfall days in September
Uyuni, Bolivia
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is July (0.4 days).
The months with the least snowfall days are January, February, March, April, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Uyuni, Bolivia
- 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 5min
The month with the most sunshine is November (Average sunshine: 12h and 0min).
The month with the least sunshine is June (Average sunshine: 7h and 42min).
Average sunshine days in September
Uyuni, Bolivia
- Average sunshine days in September: 25.8 days
The month with the most sunshine days is August (30 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in September
Uyuni, Bolivia
- Average UV index in September: 4
The months with the highest UV index are January, February, March, September, October, November and December (UV index 4).
The month with the lowest UV index is May (UV index 2).
Average cloud cover in September
Uyuni, Bolivia
- Average cloud cover in September: 5
The month with the most cloud cover is February (Cloud cover 23).
The months with the least cloud cover are June and August (Cloud cover 3).
Average visibility in September
Uyuni, Bolivia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Uyuni, Bolivia
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