September weather forecast
Bolivar, Uruguay

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Weather in September

The first month of the spring, September, is a refreshing month in Bolivar, Uruguay, with an average temperature varying between 10.7°C (51.3°F) and 16.2°C (61.2°F).

Temperature

Bolivar's transition from August to September introduces an average high-temperature of an enjoyable 16.2°C (61.2°F), marking an insignificant variation from the 15.2°C (59.4°F). Bolivar records a steady low-temperature average of 10.7°C (51.3°F) during September.

Humidity

The months with the highest humidity are July and September, with an average relative humidity of 79%.

Rainfall

In Bolivar, in September, during 10.7 rainfall days, 65mm (2.56") of precipitation is typically accumulated. Throughout the year, in Bolivar, there are 122.1 rainfall days, and 681mm (26.81") of precipitation is accumulated.

Daylight

In Bolivar, Uruguay, the average length of the day in September is 11h and 54min.
On the first day of the month, sunrise is at 07:00 and sunset at 18:25. On the last day of September, in Bolivar, sunrise is at 06:19 and sunset at 18:45 -03.

Sunshine

In Bolivar, Uruguay, the average sunshine in September is 7.4h.

UV index

In Bolivar, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Feb 14, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

What are September temperatures in Bolivar?

In September, in Bolivar, the average high-temperature is 16.2°C (61.2°F), and the average low-temperature is 10.7°C (51.3°F). In January, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 29°C (84.2°F).

What is the most humid month in Bolivar?

The months with the highest humidity are July and September, with an average relative humidity of 79%.

What is the average humidity in September in Bolivar?

The average relative humidity in September in Bolivar is 79%.

How much does it rain in Bolivar in September?

In Bolivar, Uruguay, in September, it is raining for 10.7 days, with typically 65mm (2.56") of accumulated precipitation.

How many hours of daylight does Bolivar have in September?

In September, the average day length in Bolivar, Uruguay, is 11h and 54min.

When are sunrise and sunset in September in Bolivar?

On the first day of September, sunrise is at 07:00 and sunset at 18:25. On the last day of the month, sunrise is at 06:19 and sunset at 18:45 -03.

How long on average sun shines in September in Bolivar?

The average sunshine duration in September in Bolivar, Uruguay, is 7.4h.

How high is the UV index in September in Bolivar?

In September, the average daily maximum UV index in Bolivar, Uruguay, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.

Average temperature in September
Bolivar, Uruguay

Average temperature in September - Bolivar, Uruguay
  • Average high temperature in September: 16.2°C

The warmest month (with the highest average high temperature) is January (27.2°C).
The month with the lowest average high temperature is July (13.3°C).

  • Average low temperature in September: 10.7°C

The month with the highest average low temperature is January (20°C).
The coldest month (with the lowest average low temperature) is July (8.8°C).

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Average pressure in September
Bolivar, Uruguay

Average pressure in September - Bolivar, Uruguay
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is July (1018.8mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).

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Average wind speed in September
Bolivar, Uruguay

Average wind speed in September - Bolivar, Uruguay
  • Average wind speed in September: 19.6km/h

The windiest month (with the highest average wind speed) is September (19.6km/h).
The calmest month (with the lowest average wind speed) is May (17.2km/h).

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Average humidity in September
Bolivar, Uruguay

Average humidity in September - Bolivar, Uruguay
  • Average humidity in September: 79%

The months with the highest relative humidity are July and September (79%).
The month with the lowest relative humidity is January (65%).

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Average rainfall in September
Bolivar, Uruguay

Average rainfall in September - Bolivar, Uruguay
  • Average rainfall in September: 65mm

The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is January (42mm).

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Average rainfall days in September
Bolivar, Uruguay

Average rainfall days in September - Bolivar, Uruguay
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is January (8.4 days).

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Average daylight in September /
Average sunshine in September
Bolivar, Uruguay

Average daylight in September / Average sunshine in September - Bolivar, Uruguay
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in September: 7h and 2min

The months with the most sunshine are January and December (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 30min).

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Average sunshine days in September
Bolivar, Uruguay

Average sunshine days in September - Bolivar, Uruguay
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is September (16.5 days).

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Average UV index in September
Bolivar, Uruguay

Average UV index in September - Bolivar, Uruguay
  • Average UV index in September: 4

The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is July (UV index 3).

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Average cloud cover in September
Bolivar, Uruguay

Average cloud cover in September - Bolivar, Uruguay
  • Average cloud cover in September: 37

The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 20).

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Average visibility in September
Bolivar, Uruguay

Average visibility in September - Bolivar, Uruguay
  • 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).

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Bolivar, Uruguay

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