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 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
September
Weather in September
Temperature
September's presence marks an average high-temperature of a still warm 29.5°C (85.1°F), subtly varied from August's 28.8°C (83.8°F). During the month of September, the temperature generally drops to a low average of 22.4°C (72.3°F).Heat index
September's mean heat index is calculated to be a torrid 36°C (96.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
The least humid month is September, with an average relative humidity of 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.6 days and typically collects 16mm (0.63") of precipitation.Daylight
The average length of the day in September in Suwawa is 12h and 7min.On the first day of September, sunrise is at 05:43 and sunset at 17:50. On the last day of the month, sunrise is at 05:33 and sunset at 17:40 WITA.
Sunshine
In September, the average sunshine is 9h.UV index
January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. 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
How hot does it get in September?
What is the least humid month?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September in Suwawa?
How many hours of sunshine does Suwawa have in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Suwawa, Indonesia
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is March (30.8°C).
The month with the lowest average high temperature is July (28.4°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is December (23.4°C).
The coldest months (with the lowest average low temperature) are July, August and September (22.4°C).
Average pressure in September
Suwawa, Indonesia
- Average pressure in September: 1010.1mbar
The months with the highest atmospheric pressure are August and September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in September
Suwawa, Indonesia
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is August (8.5km/h).
The calmest months (with the lowest average wind speed) are April and November (4.3km/h).
Average humidity in September
Suwawa, Indonesia
- Average humidity in September: 78%
The months with the highest relative humidity are April, May, June and July (84%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Suwawa, Indonesia
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is April (111mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Suwawa, Indonesia
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is April (22.1 days).
The month with the least rainy days is September (9.6 days).
Average daylight in September /
Average sunshine in September
Suwawa, Indonesia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is February (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 7h and 24min).
Average sunshine days in September
Suwawa, Indonesia
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (6.7 days).
Average UV index in September
Suwawa, Indonesia
- 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
Suwawa, Indonesia
- Average cloud cover in September: 36
The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are September and October (Cloud cover 36).
Average visibility in September
Suwawa, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, August and September (9km).
The months with the lowest visibility are April, May, June, July, October, November and December (8km).
