September weather forecastSantosa, Indonesia
September
Weather in September
September, the first month of the spring in Santosa, is still a warm month, with an average temperature fluctuating between 18°C (64.4°F) and 28.1°C (82.6°F).Temperature
September is the month when Santosa experiences its warmest temperatures, averaging a high of 28.1°C (82.6°F) and a low of 18°C (64.4°F).Heat index
In September, the average heat index is estimated at a hot 32°C (89.6°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
With an average relative humidity of 75%, September is the least humid month.Rainfall
In Santosa, during September, the rain falls for 16.4 days and regularly aggregates up to 79mm (3.11") of precipitation. Throughout the year, there are 296.8 rainfall days, and 2783mm (109.57") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:50 and sunset at 17:48. On the last day of the month, sunrise is at 05:34 and sunset at 17:44 WIB.
Sunshine
September has the most sunshine of the year in Santosa, with an average of 8.8h of sunshine.UV index
The months with the highest UV index are February, April through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santosa, Indonesia
- Average high temperature in September: 28.1°C
The warmest month (with the highest average high temperature) is September (28.1°C).
The month with the lowest average high temperature is January (24.8°C).
- Average low temperature in September: 18°C
The months with the highest average low temperature are November and December (19.6°C).
The coldest month (with the lowest average low temperature) is August (17.6°C).
Average pressure in September
Santosa, Indonesia
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is September (1011.5mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Santosa, Indonesia
- Average wind speed in September: 4.9km/h
The windiest month (with the highest average wind speed) is January (6km/h).
The calmest month (with the lowest average wind speed) is April (4.1km/h).
Average humidity in September
Santosa, Indonesia
- Average humidity in September: 75%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is September (75%).
Average rainfall in September
Santosa, Indonesia
- Average rainfall in September: 79mm
The wettest months (with the highest rainfall) are March and December (383mm).
The driest month (with the least rainfall) is August (67mm).
Average rainfall days in September
Santosa, Indonesia
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (15.9 days).
Average daylight in September /
Average sunshine in September
Santosa, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Santosa, Indonesia
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is August (14.4 days).
The month with the least sunshine days is February (0.2 days).
Average UV index in September
Santosa, Indonesia
- Average UV index in September: 6
The months with the highest UV index are February, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January and March (UV index 5).
Average cloud cover in September
Santosa, Indonesia
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in September
Santosa, Indonesia
- Average visibility in September: 8km
The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, November and December (7km).
