September weather forecast
Warmandi, Indonesia

September

Weather in September

September, the first month of the spring in Warmandi, is also a moderately hot month, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 29.1°C (84.4°F).

Temperature

Transitioning into September, Warmandi experiences an average high-temperature of a still moderately hot 29.1°C (84.4°F), marking a minor shift from the preceding month. Warmandi reports an average nighttime low-temperature of 24°C (75.2°F) in September.

Heat index

The heat index for September is computed to be a very hot 36°C (96.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In Warmandi, the average relative humidity in September is 83%.

Rainfall

September is the month with the least rainfall. Rain falls for 23.7 days and accumulates 102mm (4.02") of precipitation.

Daylight

In Warmandi, the average length of the day in September is 12h and 7min.
On the first day of September, sunrise is at 06:06 and sunset at 18:12. On the last day of the month, sunrise is at 05:55 and sunset at 18:02 WIT.

Sunshine

In September, the average sunshine is 7.1h.

UV index

January through July, September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

How hot is September?
In Warmandi, 29.1°C (84.4°F) is the average high-temperature and 24°C (75.2°F) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 36°C (96.8°F).
What is the average humidity in September?
In Warmandi, Indonesia, the average relative humidity in September is 83%.
What is the driest month?
September is the month with the least rainfall. Rain falls for 23.7 days and accumulates 102mm (4.02") of precipitation.
How much does it rain in Warmandi in September?
In Warmandi, Indonesia, during September, the rain falls for 23.7 days and regularly aggregates up to 102mm (4.02") of precipitation.
What is the average length of the day in September?
In Warmandi, the average day length in September is 12h and 7min.
When are sunrise and sunset in September?
On the first day of September, sunrise is at 06:06 and sunset at 18:12. On the last day of the month, sunrise is at 05:55 and sunset at 18:02 WIT.
How long on average sun shines in September?
In September, the average sunshine duration is 7.1h.
What is the month with the highest UV index?
The months with the highest UV index are January through July, September and October, with an average maximum UV index of 7.
How high is the UV index in September?
In Warmandi, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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 - Warmandi, Indonesia
Average temperature in September
Warmandi, Indonesia
  • Average high temperature in September: 29.1°C

The warmest month (with the highest average high temperature) is November (30.5°C).
The month with the lowest average high temperature is August (28.8°C).

  • Average low temperature in September: 24°C

The months with the highest average low temperature are January, February, March, November and December (25.3°C).
The coldest month (with the lowest average low temperature) is September (24°C).

Average pressure in September - Warmandi, Indonesia
Average pressure in September
Warmandi, Indonesia
  • Average pressure in September: 1010.1mbar

The months with the highest atmospheric pressure are August and September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).

Average wind speed in September - Warmandi, Indonesia
Average wind speed in September
Warmandi, Indonesia
  • Average wind speed in September: 9km/h

The windiest month (with the highest average wind speed) is August (10.5km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).

Average humidity in September - Warmandi, Indonesia
Average humidity in September
Warmandi, Indonesia
  • Average humidity in September: 83%

The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and February (79%).

Average rainfall in September - Warmandi, Indonesia
Average rainfall in September
Warmandi, Indonesia
  • Average rainfall in September: 102mm

The wettest month (with the highest rainfall) is December (186mm).
The driest month (with the least rainfall) is September (102mm).

Average rainfall days in September - Warmandi, Indonesia
Average rainfall days in September
Warmandi, Indonesia
  • Average rainfall days in September: 23.7 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is October (22.6 days).

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

The month with the longest days is December (Average daylight: 12h and 6min).
The month with the shortest days is June (Average daylight: 12h and 6min).

  • Average sunshine in September: 7h and 1min

The month with the most sunshine is November (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).

Average sunshine days in September - Warmandi, Indonesia
Average sunshine days in September
Warmandi, Indonesia
  • Average sunshine days in September: 4.1 days

The month with the most sunshine days is July (6.9 days).
The month with the least sunshine days is December (1.1 days).

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

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

Average cloud cover in September - Warmandi, Indonesia
Average cloud cover in September
Warmandi, Indonesia
  • Average cloud cover in September: 52

The months with the most cloud cover are July and August (Cloud cover 57).
The month with the least cloud cover is November (Cloud cover 41).

Average visibility in September - Warmandi, Indonesia
Average visibility in September
Warmandi, Indonesia
  • Average visibility in September: 9km

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

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