September weather forecast
Halilulik, Indonesia

September

Weather in September

September, the first month of the spring in Halilulik, is still a warm month, with temperature in the range of an average low of 23.2°C (73.8°F) and an average high of 27.7°C (81.9°F).

Temperature

The introduction of September sees an average high-temperature of a still warm 27.7°C (81.9°F), hardly deviating from August. In the month of September, Halilulik experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 23.2°C (73.8°F).

Heat index

During September, the heat index is computed to be a hot 30°C (86°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 69%.

Rainfall

In September, in Halilulik, the rain falls for 5.9 days. Throughout September, 9mm (0.35") of precipitation is accumulated. In Halilulik, during the entire year, the rain falls for 201.9 days and collects up to 906mm (35.67") of precipitation.

Daylight

The average length of the day in September is 12h and 3min.
On the first day of the month, sunrise is at 05:42 and sunset at 17:38. On the last day of September, sunrise is at 05:25 and sunset at 17:35 WITA.

Sunshine

August and September, with an average of 9.9h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Halilulik are March through May, September through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

What are September temperatures?
The high-temperature, in September, in Halilulik, is 27.7°C (81.9°F), while the low-temperature averages to 23.2°C (73.8°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 30°C (86°F).
What is the least humid month?
August and September, with an average relative humidity of 69%, are the least humid months.
What is the average humidity in September?
In Halilulik, the average relative humidity in September is 69%.
How many days does it rain in September?
In Halilulik, in September, it is raining for 5.9 days, with typically 9mm (0.35") of accumulated precipitation.
What is the average length of the day in September?
In September, the average day length is 12h and 3min.
When is the sunrise / sunset in September in Halilulik?
On the first day of September, sunrise is at 05:42 and sunset at 17:38. On the last day of the month, sunrise is at 05:25 and sunset at 17:35 WITA.
What is the month with the most sunshine?
August and September, with an average of 9.9h of sunshine, are months with the most sunshine.
How long on average sun shines in September?
In Halilulik, the average sunshine duration in September is 9.9h.
What are the months with the highest UV index in Halilulik?
The months with the highest UV index in Halilulik are March through May, September through November, with an average maximum UV index of 7.
What is the UV index intensity in September?
The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Halilulik, Indonesia
Average temperature in September
Halilulik, Indonesia
  • Average high temperature in September: 27.7°C

The warmest month (with the highest average high temperature) is October (28.5°C).
The month with the lowest average high temperature is July (26.6°C).

  • Average low temperature in September: 23.2°C

The month with the highest average low temperature is December (24.7°C).
The coldest month (with the lowest average low temperature) is August (22.3°C).

Average pressure in September - Halilulik, Indonesia
Average pressure in September
Halilulik, Indonesia
  • Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is August (1012.5mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).

Average wind speed in September - Halilulik, Indonesia
Average wind speed in September
Halilulik, Indonesia
  • Average wind speed in September: 10.5km/h

The windiest month (with the highest average wind speed) is July (12.1km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).

Average humidity in September - Halilulik, Indonesia
Average humidity in September
Halilulik, Indonesia
  • Average humidity in September: 69%

The months with the highest relative humidity are January, February and March (79%).
The months with the lowest relative humidity are August and September (69%).

Average rainfall in September - Halilulik, Indonesia
Average rainfall in September
Halilulik, Indonesia
  • Average rainfall in September: 9mm

The wettest month (with the highest rainfall) is December (172mm).
The driest month (with the least rainfall) is August (2mm).

Average rainfall days in September - Halilulik, Indonesia
Average rainfall days in September
Halilulik, Indonesia
  • Average rainfall days in September: 5.9 days

The month with the highest number of rainy days is December (28.4 days).
The month with the least rainy days is August (2.8 days).

Average daylight in September / Average sunshine in September - Halilulik, Indonesia
Average daylight in September /
Average sunshine in September
Halilulik, Indonesia
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).

  • Average sunshine in September: 9h and 5min

The months with the most sunshine are August and September (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 8h and 6min).

Average sunshine days in September - Halilulik, Indonesia
Average sunshine days in September
Halilulik, Indonesia
  • Average sunshine days in September: 22.6 days

The month with the most sunshine days is August (26.4 days).
The month with the least sunshine days is January (0.6 days).

Average UV index in September - Halilulik, Indonesia
Average UV index in September
Halilulik, Indonesia
  • Average UV index in September: 7

The months with the highest UV index are March, April, May, September, October and November (UV index 7).
The months with the lowest UV index are January, February, June, July, August and December (UV index 6).

Average cloud cover in September - Halilulik, Indonesia
Average cloud cover in September
Halilulik, Indonesia
  • Average cloud cover in September: 11

The months with the most cloud cover are January and February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in September - Halilulik, Indonesia
Average visibility in September
Halilulik, Indonesia
  • Average visibility in September: 10km

The months with the highest visibility are April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and December (9km).

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