September weather forecastProbolinggo, Indonesia
September
Weather in September
The first month of the spring, September, is still a warm month in Probolinggo, Indonesia, with an average temperature fluctuating between 27.9°C (82.2°F) and 21.9°C (71.4°F).Temperature
As August transitions into September, the average high-temperature rests at a still moderately hot 27.9°C (82.2°F), maintaining a close resemblance to the previous month. Probolinggo records a consistent low-temperature of 21.9°C (71.4°F) during September nights.Heat index
The average heat index in September is evaluated at a hot 31°C (87.8°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.For clarity, heat index numbers account for light winds and areas under shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In September, the average relative humidity in Probolinggo is 74%.Rainfall
In Probolinggo, Indonesia, in September, it is raining for 10.6 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, in Probolinggo, there are 204.6 rainfall days, and 824mm (32.44") of precipitation is accumulated.Sea temperature
In Probolinggo, Indonesia, in September, the average water temperature is 27.6°C (81.7°F).Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.
Daylight
In September, the average length of the day is 12h and 4min.On the first day of the month, sunrise is at 05:28 and sunset at 17:26. On the last day of September, in Probolinggo, sunrise is at 05:12 and sunset at 17:22 WIB.
Sunshine
The average sunshine in September in Probolinggo is 9.8h.UV index
February, April, May, September through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Probolinggo, Indonesia
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is October (29.5°C).
The month with the lowest average high temperature is July (27°C).
- Average low temperature in September: 21.9°C
The month with the highest average low temperature is December (24.6°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).
Average pressure in September
Probolinggo, Indonesia
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is August (1011.7mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in September
Probolinggo, Indonesia
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is August (10.3km/h).
The calmest month (with the lowest average wind speed) is March (5.5km/h).
Average humidity in September
Probolinggo, Indonesia
- Average humidity in September: 74%
The months with the highest relative humidity are January, February and March (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Probolinggo, Indonesia
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is January (125mm).
The driest month (with the least rainfall) is August (18mm).
Average rainfall days in September
Probolinggo, Indonesia
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is January (23 days).
The month with the least rainy days is August (10 days).
Average sea temperature in September
Probolinggo, Indonesia
- Average sea temperature in September: 27.6°C
The best month for swimming (with the highest average sea temperature) is December (29.9°C).
The coldest month (with the lowest average sea temperature) is August (27.3°C).
Average daylight in September /
Average sunshine in September
Probolinggo, Indonesia
- Average daylight in September: 12h and 6min
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 42min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 7h and 42min).
Average sunshine days in September
Probolinggo, Indonesia
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is August (15.6 days).
The month with the least sunshine days is January (5.2 days).
Average UV index in September
Probolinggo, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, April, May, September, October and November (UV index 7).
The months with the lowest UV index are January, March, June, July, August and December (UV index 6).
Average cloud cover in September
Probolinggo, Indonesia
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are August and September (Cloud cover 17).
Average visibility in September
Probolinggo, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
