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
The transition into September notes an average high-temperature of a still hot 32.6°C (90.7°F), revealing a mild distinction from the 33.1°C (91.6°F) in August. An average low-temperature of 23.4°C (74.1°F) is observed during September nights.Heat index
The heat index value during September is evaluated at a blazing hot 45°C (113°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Bandar Selamat, during September, the rain falls for 26.9 days and regularly aggregates up to 135mm (5.31") of precipitation. In Bandar Selamat, during the entire year, the rain falls for 298.2 days and collects up to 1202mm (47.32") of precipitation.Daylight
The average length of the day in September is 12h and 8min.On the first day of the month, sunrise is at 06:19 and sunset at 18:30. On the last day of September, sunrise is at 06:12 and sunset at 18:17 WIB.
Sunshine
In Bandar Selamat, the average sunshine in September is 8.5h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 7 in September suggests the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
When is the highest UV index?
When is the lowest UV index in Bandar Selamat?
How high is the UV index in September?
Average temperature in September
Bandar Selamat, Indonesia
- Average high temperature in September: 32.6°C
The warmest month (with the highest average high temperature) is June (33.5°C).
The months with the lowest average high temperature are January and December (30.8°C).
- Average low temperature in September: 23.4°C
The month with the highest average low temperature is May (24.3°C).
The coldest month (with the lowest average low temperature) is January (23°C).
Average pressure in September
Bandar Selamat, Indonesia
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is January (1010.9mbar).
The month with the lowest atmospheric pressure is May (1009.6mbar).
Average wind speed in September
Bandar Selamat, Indonesia
- Average wind speed in September: 4.8km/h
The windiest month (with the highest average wind speed) is February (5.6km/h).
The calmest months (with the lowest average wind speed) are September and October (4.8km/h).
Average humidity in September
Bandar Selamat, Indonesia
- Average humidity in September: 77%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are March and June (75%).
Average rainfall in September
Bandar Selamat, Indonesia
- Average rainfall in September: 135mm
The wettest month (with the highest rainfall) is October (154mm).
The driest month (with the least rainfall) is February (60mm).
Average rainfall days in September
Bandar Selamat, Indonesia
- Average rainfall days in September: 26.9 days
The month with the highest number of rainy days is October (28.3 days).
The month with the least rainy days is February (18.8 days).
Average daylight in September /
Average sunshine in September
Bandar Selamat, Indonesia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 8h and 0min).
Average sunshine days in September
Bandar Selamat, Indonesia
- Average sunshine days in September: 1.8 days
The months with the most sunshine days are February and March (6.3 days).
The month with the least sunshine days is November (1 days).
Average UV index in September
Bandar Selamat, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Bandar Selamat, Indonesia
- Average cloud cover in September: 39
The month with the most cloud cover is November (Cloud cover 45).
The month with the least cloud cover is March (Cloud cover 30).
Average visibility in September
Bandar Selamat, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, June and August (10km).
The months with the lowest visibility are January, May, July, September, October, November and December (9km).
