September weather forecastSantíssimo, Brazil

September

Weather in September

September, the first month of the spring in Santíssimo, is still a warm month, with an average temperature fluctuating between 26°C (78.8°F) and 17.5°C (63.5°F).

Temperature

Santíssimo's average high-temperature in September is a still moderately hot 26°C (78.8°F), indicating a subtle variation from August. In September, the recorded average low-temperature is a comfortable 17.5°C (63.5°F).

Humidity

In Santíssimo, Brazil, the average relative humidity in September is 78%.

Rainfall

In Santíssimo, during September, the rain falls for 14.8 days and regularly aggregates up to 50mm (1.97") of precipitation. Throughout the year, there are 220.6 rainfall days, and 991mm (39.02") of precipitation is accumulated.

Daylight

The average length of the day in September is 11h and 58min.
On the first day of the month, sunrise is at 06:03 and sunset at 17:44. On the last day of September, sunrise is at 05:34 and sunset at 17:52 -03.

Sunshine

In Santíssimo, the average sunshine in September is 7.6h.

UV index

April, May, July and September, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

The high-temperature, in September, in Santíssimo, records 26°C (78.8°F), while the low-temperature is 17.5°C (63.5°F). In March, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 34°C (93.2°F).

In September, the average relative humidity is 78%.

In Santíssimo, in September, it is raining for 14.8 days, with typically 50mm (1.97") of accumulated precipitation.

The average day length in September is 11h and 58min.

On the first day of September, sunrise is at 06:03 and sunset at 17:44. On the last day of the month, sunrise is at 05:34 and sunset at 17:52 -03.

In September, the average sunshine duration is 7.6h.

The months with the lowest UV index are April, May, July and September, with an average maximum UV index of 5.

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Santíssimo, Brazil

  • Average high temperature in September: 26°C

The warmest month (with the highest average high temperature) is February (30.3°C).
The month with the lowest average high temperature is July (24°C).

  • Average low temperature in September: 17.5°C

The month with the highest average low temperature is January (21.6°C).
The coldest month (with the lowest average low temperature) is August (16.1°C).

Average pressure in September
Santíssimo, Brazil

  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).

Average wind speed in September
Santíssimo, Brazil

  • Average wind speed in September: 7.8km/h

The windiest month (with the highest average wind speed) is September (7.8km/h).
The calmest month (with the lowest average wind speed) is March (6km/h).

Average humidity in September
Santíssimo, Brazil

  • Average humidity in September: 78%

The months with the highest relative humidity are March and April (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in September
Santíssimo, Brazil

  • Average rainfall in September: 50mm

The wettest month (with the highest rainfall) is January (148mm).
The driest month (with the least rainfall) is June (29mm).

Average rainfall days in September
Santíssimo, Brazil

  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is December (25.7 days).
The month with the least rainy days is August (10.8 days).

Average daylight in September /
Average sunshine in September
Santíssimo, Brazil

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in September: 7h and 36min

The month with the most sunshine is February (Average sunshine: 8h and 30min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in September
Santíssimo, Brazil

  • Average sunshine days in September: 12.6 days

The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is December (3.9 days).

Average UV index in September
Santíssimo, Brazil

  • Average UV index in September: 5

The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are April, May, July and September (UV index 5).

Average cloud cover in September
Santíssimo, Brazil

  • Average cloud cover in September: 39

The month with the most cloud cover is November (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in September
Santíssimo, Brazil

  • Average visibility in September: 9km

The months with the highest visibility are February, June, July, August, September and October (9km).
The months with the lowest visibility are January, March, April, May, November and December (8km).