September weather forecastSomba, Indonesia
September
Weather in September
September, the first month of the spring in Somba, is still a warm month, with an average temperature varying between 29.6°C (85.3°F) and 21.5°C (70.7°F).Temperature
An average high-temperature of a still warm 29.6°C (85.3°F) marks September, exhibiting a close resemblance to the conditions in August. During the month of September, the temperature generally drops to a low average of 21.5°C (70.7°F).Heat index
The heat index value during September is estimated at a very hot 35°C (95°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
September and October, with an average relative humidity of 73%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 19.7 days and typically collects 58mm (2.28") of precipitation.Sea temperature
In September, the average sea temperature is 29°C (84.2°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.
Daylight
In Somba, the average length of the day in September is 12h and 5min.On the first day of September, sunrise is at 06:03 and sunset at 18:06. On the last day of the month, sunrise is at 05:50 and sunset at 17:58 WITA.
Sunshine
The month with the most sunshine is September, with an average of 10.1h of sunshine.UV index
January, February, April, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Somba, Indonesia
- Average high temperature in September: 29.6°C
The warmest month (with the highest average high temperature) is October (29.8°C).
The month with the lowest average high temperature is July (28.1°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is December (23.2°C).
The coldest month (with the lowest average low temperature) is September (21.5°C).
Average pressure in September
Somba, Indonesia
- Average pressure in September: 1011.1mbar
The months with the highest atmospheric pressure are August and September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Somba, Indonesia
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is August (9.3km/h).
The calmest month (with the lowest average wind speed) is November (5.6km/h).
Average humidity in September
Somba, Indonesia
- Average humidity in September: 73%
The months with the highest relative humidity are April, May and June (81%).
The months with the lowest relative humidity are September and October (73%).
Average rainfall in September
Somba, Indonesia
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is April (187mm).
The driest month (with the least rainfall) is September (58mm).
Average rainfall days in September
Somba, Indonesia
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is December (30.2 days).
The month with the least rainy days is September (19.7 days).
Average sea temperature in September
Somba, Indonesia
- Average sea temperature in September: 29°C
The best month for swimming (with the highest average sea temperature) is December (30.1°C).
The coldest month (with the lowest average sea temperature) is August (28.9°C).
Average daylight in September /
Average sunshine in September
Somba, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is September (Average sunshine: 10h and 6min).
The month with the least sunshine is May (Average sunshine: 6h and 30min).
Average sunshine days in September
Somba, Indonesia
- Average sunshine days in September: 6.8 days
The month with the most sunshine days is August (7.3 days).
The months with the least sunshine days are April and December (0.1 days).
Average UV index in September
Somba, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, April, September, October, November and December (UV index 7).
The months with the lowest UV index are March, May, June, July and August (UV index 6).
Average cloud cover in September
Somba, Indonesia
- Average cloud cover in September: 23
The months with the most cloud cover are April and December (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in September
Somba, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
