September weather forecastGuarujá, Brazil
September weather for Guarujá, Brazil: September is the month with the coldest seawater in Guarujá, Brazil, with an average sea temperature of 20.7°C (69.3°F). With an average sea temperature of 20.7°C (69.3°F), September is the month with the coldest seawater in Guarujá.
September
Weather in September
The Guarujá climate in September features a definitive transition towards Spring, with elements of weather starting to swing back towards the warmer side. Ambient conditions balance nicely between the warmer days and the cooler nights, making it an ideal time for outdoor engagements. The higher humidity that returns, paired with the resurging sea temperature, restores the tropical moisture-laden air. Rainfall registers an upturn reading at 60mm (2.36") in comparison to the minimal amount registered in August. The September weather tableau illustrates a harmonious mix of seasonal transitions.Temperature
The transition into September in Guarujá is marked with an average high-temperature of a still agreeable 22.5°C (72.5°F), showing an insignificant shift from August's 22°C (71.6°F). Guarujá documents an average low-temperature of 19.2°C (66.6°F) for the nights of September.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. In Guarujá, during the entire year, the rain falls for 197.1 days and collects up to 916mm (36.06") of precipitation.Sea temperature
With an average sea temperature of 20.7°C (69.3°F), September is the month with the coldest seawater in Guarujá.Note: Most individuals do not find swimming at 20.7°C (69.3°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
In September, the average length of the day in Guarujá 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 18:04 -03.
Sunshine
In September, the average sunshine in Guarujá is 7.4h.UV index
July through September, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Take precautions - Protection against sun damage is advised. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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).
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).
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).
Average daylight in September /
Average sunshine in September
Guarujá, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- 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).
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).
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).
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).
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).
