September weather forecast
Guarujá, Brazil

Weather in September

September, the first month of the spring in Guarujá, is also an agreeable month, with an average temperature varying between 19.2°C (66.6°F) and 22.5°C (72.5°F).

Temperature

In Guarujá, Brazil, the average high-temperature in September is relatively the same as in August - a still agreeable 22.5°C (72.5°F). The average low-temperature, in Guarujá, is 19.2°C (66.6°F).

Humidity

In Guarujá, the average relative humidity in September is 81%.

Rainfall

In Guarujá, in September, during 15 rainfall days, 60mm (2.36") of precipitation is typically accumulated. Throughout the year, there are 197.1 rainfall days, and 916mm (36.06") of precipitation is accumulated.

Sea temperature

The month with the coldest seawater in Guarujá is September, with an average sea temperature of 20.7°C (69.3°F).
Note: For most, swimming in 20.7°C (69.3°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In September, the average length of the day is 11h and 58min.
On the first day of September in Guarujá, sunrise is at 06:15 and sunset at 17:54. On the last day of the month, sunrise is at 05:45 and sunset at 18:03 -03.

Sunshine

In Guarujá, Brazil, the average sunshine in September is 7.4h.

UV index

The months with the lowest UV index in Guarujá, Brazil, are July through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the average humidity in September in Guarujá?

In Guarujá, Brazil, the average relative humidity in September is 81%.

How many days does it rain in September in Guarujá?

In September, the rain falls for 15 days. Throughout September, 60mm (2.36") of precipitation is accumulated.

What is the month with the coldest sea water in Guarujá?

September is the month with the coldest seawater, with an average sea temperature of 20.7°C (69.3°F).

What is the sea water temperature in September in Guarujá?

In Guarujá, the average seawater temperature in September is 20.7°C (69.3°F). Swimming in 20.7°C (69.3°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Guarujá have in September?

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

When are sunrise and sunset in September in Guarujá?

In September, on the first day of the month, sunrise is at 06:15 and sunset at 17:54. On the last day of the month, in Guarujá, sunrise is at 05:45 and sunset at 18:03 -03.

How long on average sun shines in September in Guarujá?

The average sunshine duration in September in Guarujá is 7.4h.

What is the month with the lowest UV index in Guarujá?

The months with the lowest UV index in Guarujá are July through September, with an average maximum UV index of 5.

What is the UV index intensity in September in Guarujá?

In Guarujá, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.

Average temperature in September
Guarujá, Brazil

Average temperature in September - Guarujá, Brazil
  • Average high temperature in September: 22.5°C

The warmest month (with the highest average high temperature) is February (27.7°C).
The month with the lowest average high temperature is July (21.9°C).

  • Average low temperature in September: 19.2°C

The month with the highest average low temperature is February (24.6°C).
The coldest months (with the lowest average low temperature) are July and August (18.3°C).

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Average pressure in September
Guarujá, Brazil

Average pressure in September - Guarujá, Brazil
  • Average pressure in September: 1017.3mbar

The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.6mbar).

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Average wind speed in September
Guarujá, Brazil

Average wind speed in September - Guarujá, Brazil
  • Average wind speed in September: 13.3km/h

The windiest month (with the highest average wind speed) is November (13.6km/h).
The calmest month (with the lowest average wind speed) is February (11.5km/h).

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Average humidity in September
Guarujá, Brazil

Average humidity in September - Guarujá, Brazil
  • Average humidity in September: 81%

The months with the highest relative humidity are October and November (83%).
The months with the lowest relative humidity are May, July and August (78%).

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Average rainfall in September
Guarujá, Brazil

Average rainfall in September - Guarujá, Brazil
  • Average rainfall in September: 60mm

The wettest month (with the highest rainfall) is February (127mm).
The driest month (with the least rainfall) is August (46mm).

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Average rainfall days in September
Guarujá, Brazil

Average rainfall days in September - Guarujá, Brazil
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is January (21.8 days).
The month with the least rainy days is August (11 days).

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Average sea temperature in September
Guarujá, Brazil

Average sea temperature in September - Guarujá, Brazil
  • Average sea temperature in September: 20.7°C

The best month for swimming (with the highest average sea temperature) is February (27°C).
The coldest month (with the lowest average sea temperature) is September (20.7°C).

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

Average daylight in September / Average sunshine in September - Guarujá, Brazil
  • Average daylight in September: 11h and 58min

The month with the longest days is December (Average daylight: 13h and 35min).
The month with the shortest days is June (Average daylight: 10h and 41min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The months with the least sunshine are October and November (Average sunshine: 7h and 6min).

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Average sunshine days in September
Guarujá, Brazil

Average sunshine days in September - Guarujá, Brazil
  • Average sunshine days in September: 12.1 days

The month with the most sunshine days is August (17.8 days).
The month with the least sunshine days is January (6.8 days).

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Average UV index in September
Guarujá, Brazil

Average UV index in September - Guarujá, Brazil
  • Average UV index in September: 5

The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are July, August and September (UV index 5).

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Average cloud cover in September
Guarujá, Brazil

Average cloud cover in September - Guarujá, Brazil
  • Average cloud cover in September: 40

The month with the most cloud cover is November (Cloud cover 47).
The months with the least cloud cover are May and August (Cloud cover 32).

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Average visibility in September
Guarujá, Brazil

Average visibility in September - Guarujá, Brazil
  • 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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