Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September brings with it an average high-temperature of a still moderately hot 27.6°C (81.7°F), showing a negligible variation from the month before. Night temperatures during September in Olinda stabilize at an average of 22.9°C (73.2°F), closely mirroring the daytime temperatures.Heat index
September's average heat index is computed to be a hot 31°C (87.8°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Olinda, in September, it is raining for 19.2 days, with typically 28mm (1.1") of accumulated precipitation. Throughout the year, there are 250.3 rainfall days, and 716mm (28.19") of precipitation is accumulated.Sea temperature
August and September, with an average sea temperature of 26.4°C (79.5°F), are months with the coldest seawater.Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.
Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:20 and sunset at 17:18. On the last day of the month, sunrise is at 05:03 and sunset at 17:14 -03.
Sunshine
In Olinda, the average sunshine in September is 7.8h.UV index
The months with the highest UV index in Olinda are January through May, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 7 in September leads to these guidelines:
Deflect overexposure. Sun protection is a necessity. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Stay cautious! Sand and water reflections increase UV radiation potency.
Frequently asked questions
What are September temperatures in Olinda?
What is the average humidity in September in Olinda?
How much does it rain in Olinda in September?
What months are the sea coldest in Olinda?
What is the sea water temperature in September in Olinda?
What is the average length of the day in September in Olinda?
When is the sunrise / sunset in September in Olinda?
How many hours of sunshine does Olinda have in September?
What is the month with the highest UV index in Olinda?
How high is the UV index in September in Olinda?
Average temperature in September
Olinda, Brazil
- Average high temperature in September: 27.6°C
The warmest month (with the highest average high temperature) is March (30.4°C).
The month with the lowest average high temperature is July (26.9°C).
- Average low temperature in September: 22.9°C
The month with the highest average low temperature is March (25.4°C).
The coldest months (with the lowest average low temperature) are August and September (22.9°C).
Average pressure in September
Olinda, Brazil
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is August (1016.4mbar).
The months with the lowest atmospheric pressure are February and March (1012mbar).
Average wind speed in September
Olinda, Brazil
- Average wind speed in September: 15.8km/h
The windiest month (with the highest average wind speed) is August (16km/h).
The calmest month (with the lowest average wind speed) is April (11.3km/h).
Average humidity in September
Olinda, Brazil
- Average humidity in September: 76%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are November and December (73%).
Average rainfall in September
Olinda, Brazil
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is June (109mm).
The driest months (with the least rainfall) are October and November (20mm).
Average rainfall days in September
Olinda, Brazil
- Average rainfall days in September: 19.2 days
The month with the highest number of rainy days is July (25.6 days).
The month with the least rainy days is November (16.5 days).
Average sea temperature in September
Olinda, Brazil
- Average sea temperature in September: 26.4°C
The best month for swimming (with the highest average sea temperature) is March (28.9°C).
The coldest months (with the lowest average sea temperature) are August and September (26.4°C).
Average daylight in September /
Average sunshine in September
Olinda, 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: 7h and 5min
The month with the most sunshine is March (Average sunshine: 8h and 6min).
The month with the least sunshine is July (Average sunshine: 7h and 0min).
Average sunshine days in September
Olinda, Brazil
- Average sunshine days in September: 5.4 days
The month with the most sunshine days is March (7.3 days).
The month with the least sunshine days is June (2.3 days).
Average UV index in September
Olinda, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, September, October, November and December (UV index 7).
The months with the lowest UV index are June, July and August (UV index 6).
Average cloud cover in September
Olinda, Brazil
- Average cloud cover in September: 45
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is March (Cloud cover 39).
Average visibility in September
Olinda, 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).
Olinda, Brazil
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