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
September records an average high-temperature of a still moderately hot 27.5°C (81.5°F), indicating a minor variation from the preceding month. Gili Trawangan sustains a near constant temperature throughout September, with nighttime averages of 24.1°C (75.4°F).Heat index
The heat index value during September is evaluated at a tropical 31°C (87.8°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The average relative humidity in September is 78%.Rainfall
In Gili Trawangan, Indonesia, in September, it is raining for 12.3 days, with typically 27mm (1.06") of accumulated precipitation. In Gili Trawangan, during the entire year, the rain falls for 251.2 days and collects up to 1214mm (47.8") of precipitation.Sea temperature
July through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.
Daylight
In September, the average length of the day is 12h and 4min.On the first day of September in Gili Trawangan, Indonesia, sunrise is at 06:17 and sunset at 18:14. On the last day of the month, sunrise is at 06:00 and sunset at 18:10 WITA.
Sunshine
The average sunshine in September is 9.6h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Gili Trawangan. The months with the lowest UV index in Gili Trawangan, Indonesia, are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Stay aware! UV radiation is magnified when reflecting off sand and water.
Frequently asked questions
What is the average September temperature in Gili Trawangan?
What is the average humidity in September in Gili Trawangan?
How much does it rain in Gili Trawangan in September?
What months are the sea coldest in Gili Trawangan?
What is the water temperature in September in Gili Trawangan?
How many hours of daylight does Gili Trawangan have in September?
When is the sunrise / sunset in September in Gili Trawangan?
How many hours of sunshine does Gili Trawangan have in September?
What is the month with the highest UV index in Gili Trawangan?
What is the month with the lowest UV index in Gili Trawangan?
How high is the UV index in September in Gili Trawangan?
Average temperature in September
Gili Trawangan, Indonesia
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is November (28.9°C).
The month with the lowest average high temperature is August (27°C).
- Average low temperature in September: 24.1°C
The months with the highest average low temperature are November and December (26.3°C).
The coldest month (with the lowest average low temperature) is August (23.7°C).
Average pressure in September
Gili Trawangan, Indonesia
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is August (1011.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in September
Gili Trawangan, Indonesia
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is July (13.6km/h).
The calmest month (with the lowest average wind speed) is April (7.8km/h).
Average humidity in September
Gili Trawangan, Indonesia
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, May, June, July and December (79%).
The month with the lowest relative humidity is October (77%).
Average rainfall in September
Gili Trawangan, Indonesia
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (208mm).
The driest month (with the least rainfall) is August (15mm).
Average rainfall days in September
Gili Trawangan, Indonesia
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is January (28.1 days).
The month with the least rainy days is August (12.2 days).
Average sea temperature in September
Gili Trawangan, Indonesia
- Average sea temperature in September: 27°C
The best months for swimming (with the highest average sea temperature) are January, February, March, April, November and December (29°C).
The coldest months (with the lowest average sea temperature) are July, August and September (27°C).
Average daylight in September /
Average sunshine in September
Gili Trawangan, Indonesia
- 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 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is October (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 54min).
Average sunshine days in September
Gili Trawangan, Indonesia
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is August (12.8 days).
The month with the least sunshine days is January (2.3 days).
Average UV index in September
Gili Trawangan, 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
Gili Trawangan, Indonesia
- Average cloud cover in September: 22
The months with the most cloud cover are January and December (Cloud cover 44).
The months with the least cloud cover are August and September (Cloud cover 22).
Average visibility in September
Gili Trawangan, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Gili Trawangan, Indonesia
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