September weather forecast
Socorro do Piauí, Brazil

September

Weather in September

September, the first month of the spring in Socorro do Piauí, is a sweltering month, with an average temperature ranging between max 36.5°C (97.7°F) and min 23.1°C (73.6°F).

Temperature

The introduction of September sees an average high-temperature of a sweltering 36.5°C (97.7°F), hardly deviating from August. Socorro do Piauí's September nights represent a significant downturn from the day's heat, with an average temperature of 23.1°C (73.6°F).

Humidity

The least humid month is September, with an average relative humidity of 39%.

Rainfall

January through July, September through December are months with rainfall. September is the first month it rains. Throughout September, in the average 1.6 rainfall days, it receives 2mm (0.08") of precipitation. In Socorro do Piauí, during the entire year, the rain falls for 159.4 days and collects up to 844mm (33.23") of precipitation.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:50 and sunset at 17:48. On the last day of the month, sunrise is at 05:34 and sunset at 17:44 -03.

Sunshine

With an average of 9.9h of sunshine, September has the most sunshine of the year.

UV index

September is the month with the highest UV index, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 8 suggests these recommendations:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

How hot is it in September?
The high-temperature, in September, in Socorro do Piauí, is 36.5°C (97.7°F), while the low-temperature averages to 23.1°C (73.6°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 39°C (102.2°F).
What is the least humid month?
September is the least humid month, with an average relative humidity of 39%.
What is the average humidity in September in Socorro do Piauí?
The average relative humidity in September is 39%.
When does it start raining?
September is the first month it rains. Throughout September, in the average 1.6 rainfall days, it receives 2mm (0.08") of precipitation.
What is the average length of the day in September in Socorro do Piauí?
In September, the average day length is 12h and 4min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 05:50 and sunset at 17:48. On the last day of the month, sunrise is at 05:34 and sunset at 17:44 -03.
What month has the most sunshine?
With an average of 9.9h of sunshine, September has the most sunshine of the year.
How long on average sun shines in September?
The average sunshine duration in September is 9.9h.
When is the highest UV index?
September is the month with the highest UV index, with an average maximum UV index of 8.
What is the UV index intensity in September?
In Socorro do Piauí, the average daily maximum UV index in September is 8. A UV Index reading of 8 to 10 represents a very high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Socorro do Piauí, Brazil
  • Average high temperature in September: 36.5°C

The warmest month (with the highest average high temperature) is October (36.9°C).
The month with the lowest average high temperature is April (31.5°C).

  • Average low temperature in September: 23.1°C

The month with the highest average low temperature is October (25.2°C).
The coldest month (with the lowest average low temperature) is July (21°C).

Average pressure in September
Socorro do Piauí, Brazil
  • Average pressure in September: 1012.4mbar

The month with the highest atmospheric pressure is July (1014.4mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).

Average wind speed in September
Socorro do Piauí, Brazil
  • Average wind speed in September: 16.2km/h

The windiest month (with the highest average wind speed) is July (17.4km/h).
The calmest month (with the lowest average wind speed) is March (7.4km/h).

Average humidity in September
Socorro do Piauí, Brazil
  • Average humidity in September: 39%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (39%).

Average rainfall in September
Socorro do Piauí, Brazil
  • Average rainfall in September: 2mm

The wettest month (with the highest rainfall) is March (191mm).
The driest month (with the least rainfall) is August (0mm).

Average rainfall days in September
Socorro do Piauí, Brazil
  • Average rainfall days in September: 1.6 days

The month with the highest number of rainy days is March (27.6 days).
The month with the least rainy days is August (0.5 days).

Average daylight in September /
Average sunshine in September
Socorro do Piauí, Brazil
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is September (Average sunshine: 9h and 54min).
The month with the least sunshine is April (Average sunshine: 7h and 24min).

Average sunshine days in September
Socorro do Piauí, Brazil
  • Average sunshine days in September: 28.5 days

The month with the most sunshine days is August (30.2 days).
The month with the least sunshine days is March (2.6 days).

Average UV index in September
Socorro do Piauí, Brazil
  • Average UV index in September: 8

The month with the highest UV index is September (UV index 8).
The month with the lowest UV index is January (UV index 6).

Average cloud cover in September
Socorro do Piauí, Brazil
  • Average cloud cover in September: 14

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in September
Socorro do Piauí, Brazil
  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March and April (9km).

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