September weather forecastWonosobo, Indonesia

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Wonosobo, Indonesia, with an average temperature ranging between min 19.1°C (66.4°F) and max 27.2°C (81°F).

Temperature

September's advent presents an average high-temperature of a still moderately hot 27.2°C (81°F), indicating a slight variation from the conditions of the previous month. In Wonosobo, September nights witness a steady temperature drop to a refreshing 19.1°C (66.4°F).

Heat index

September's heat index is appraised at a tropical 31°C (87.8°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 83%.

Rainfall

In Wonosobo, during September, the rain falls for 22.7 days and regularly aggregates up to 108mm (4.25") of precipitation. Throughout the year, in Wonosobo, there are 322.7 rainfall days, and 3079mm (121.22") of precipitation is accumulated.

Daylight

In Wonosobo, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:41 and sunset at 17:39. On the last day of September, sunrise is at 05:25 and sunset at 17:35 WIB.

Sunshine

The average sunshine in September is 7.5h.

UV index

January through October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during September leads to these advisories:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Updated: Aug 22, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Wonosobo in September has an average high-temperature of 27.2°C (81°F) and an average low-temperature of 19.1°C (66.4°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is appraised at 31°C (87.8°F).

September and October, with an average relative humidity of 83%, are the least humid months.

In September, the average relative humidity is 83%.

In Wonosobo, Indonesia, during September, the rain falls for 22.7 days and regularly aggregates up to 108mm (4.25") of precipitation.

The average day length in September is 12h and 4min.

In September, on the first day of the month, sunrise is at 05:41 and sunset at 17:39. On the last day of the month, sunrise is at 05:25 and sunset at 17:35 WIB.

In September, the average sunshine duration is 7.5h.

The months with the highest UV index are January through October and December, with an average maximum UV index of 6.

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

26.5°C

27.2°C

27.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.9km/h

8.2km/h

7.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

4.8

1.7

Average UV index

Average cloud cover

53%

54%

Average visibility

7km

Average temperature in September
Wonosobo, Indonesia

Average high temperature in September: 27.2°C

The warmest month (with the highest average high temperature) is October (27.8°C).
The month with the lowest average high temperature is July (25.9°C).

Average low temperature in September: 19.1°C

The month with the highest average low temperature is November (21.1°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).

Average pressure in September
Wonosobo, 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 (1009.1mbar).

Average wind speed in September
Wonosobo, Indonesia

Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is September (7.2km/h).
The calmest month (with the lowest average wind speed) is April (4.4km/h).

Average humidity in September
Wonosobo, Indonesia

Average humidity in September: 83%

The month with the highest relative humidity is April (89%).
The months with the lowest relative humidity are September and October (83%).

Average rainfall in September
Wonosobo, Indonesia

Average rainfall in September: 108mm

The wettest month (with the highest rainfall) is March (404mm).
The driest month (with the least rainfall) is August (66mm).

Average rainfall days in September
Wonosobo, Indonesia

Average rainfall days in September: 22.7 days

The months with the highest number of rainy days are January and March (30.7 days).
The month with the least rainy days is August (21.1 days).

Average daylight in September /
Average sunshine in September
Wonosobo, 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: 7h and 30min

The month with the most sunshine is August (Average sunshine: 7h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 0min).

Average sunshine days in September
Wonosobo, Indonesia

Average sunshine days in September: 4.8 days

The months with the most sunshine days are July, August and September (4.8 days).
The month with the least sunshine days is March (0 days).

Average UV index in September
Wonosobo, Indonesia

Average UV index in September: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 6).
The month with the lowest UV index is November (UV index 5).

Average cloud cover in September
Wonosobo, Indonesia

Average cloud cover in September: 53

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are June, August and September (Cloud cover 53).

Average visibility in September
Wonosobo, Indonesia

Average visibility in September: 7km

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