September weather forecastUlla Ulla, Bolivia

September

Weather in September

The first month of the spring, September, is still a warm month in Ulla, Bolivia, with an average temperature fluctuating between 13.5°C (56.3°F) and 24.2°C (75.6°F).

Temperature

Ulla's temperatures tend to hit their maximum during September and November, with an average high-temperature of 24.2°C (75.6°F).

Humidity

With an average relative humidity of 75%, September is the least humid month.

Rainfall

In September, in Ulla, the rain falls for 22.5 days. Throughout September, 93mm (3.66") of precipitation is accumulated. Throughout the year, there are 313.4 rainfall days, and 2437mm (95.94") of precipitation is accumulated.

Daylight

In Ulla, the average length of the day in September is 12h and 1min.
On the first day of September, sunrise is at 06:41 and sunset at 18:31. On the last day of the month, sunrise is at 06:19 and sunset at 18:33 -04.

Sunshine

In September, the average sunshine is 8.6h.

UV index

January through December, with an average maximum UV index of 5, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 in September translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Updated: Aug 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

September and November, when the average high-temperature in Ulla, Bolivia, reaches 24.2°C (75.6°F), are the warmest months.

In Ulla, 24.2°C (75.6°F) is the average high-temperature and 13.5°C (56.3°F) is the average low-temperature during September.

With an average relative humidity of 75%, September is the least humid month.

In Ulla, the average relative humidity in September is 75%.

In Ulla, during September, the rain falls for 22.5 days and regularly aggregates up to 93mm (3.66") of precipitation.

In Ulla, Bolivia, the average day length in September is 12h and 1min.

On the first day of September, sunrise is at 06:41 and sunset at 18:31. On the last day of the month, sunrise is at 06:19 and sunset at 18:33 -04.

In September, the average sunshine duration is 8.6h.

January through December, with an average maximum UV index of 5, are months with the highest UV index.

The months with the lowest UV index are January through December, with an average maximum UV index of 5.

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

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

23.1°C

24.2°C

24°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.7km/h

5.8km/h

6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

9.2

5.3

1.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Ulla Ulla, Bolivia

Average high temperature in September: 24.2°C

The warmest months (with the highest average high temperature) are September and November (24.2°C).
The month with the lowest average high temperature is June (21.5°C).

Average low temperature in September: 13.5°C

The months with the highest average low temperature are January, February and December (14.8°C).
The coldest month (with the lowest average low temperature) is July (11.7°C).

Average pressure in September
Ulla Ulla, Bolivia

Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is July (1017.1mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).

Average wind speed in September
Ulla Ulla, Bolivia

Average wind speed in September: 5.4km/h

The windiest month (with the highest average wind speed) is September (5.4km/h).
The calmest months (with the lowest average wind speed) are May and June (4.3km/h).

Average humidity in September
Ulla Ulla, Bolivia

Average humidity in September: 75%

The months with the highest relative humidity are February and May (88%).
The month with the lowest relative humidity is September (75%).

Average rainfall in September
Ulla Ulla, Bolivia

Average rainfall in September: 93mm

The wettest month (with the highest rainfall) is February (370mm).
The driest month (with the least rainfall) is August (55mm).

Average rainfall days in September
Ulla Ulla, Bolivia

Average rainfall days in September: 22.5 days

The month with the highest number of rainy days is January (30.4 days).
The month with the least rainy days is August (19.3 days).

Average daylight in September /
Average sunshine in September
Ulla Ulla, Bolivia

Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).

Average sunshine in September: 8h and 36min

The month with the most sunshine is November (Average sunshine: 9h and 6min).
The month with the least sunshine is May (Average sunshine: 6h and 12min).

Average sunshine days in September
Ulla Ulla, Bolivia

Average sunshine days in September: 5.3 days

The month with the most sunshine days is August (9.2 days).
The month with the least sunshine days is February (0 days).

Average UV index in September
Ulla Ulla, Bolivia

Average UV index in September: 5

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).