September weather forecast
Rowosari, Indonesia

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Weather in September

September, the first month of the spring in Rowosari, is still a warm month, with an average temperature fluctuating between 22°C (71.6°F) and 27.4°C (81.3°F).

Temperature

As September takes its course, Rowosari's average high-temperature registers at a still moderately hot 27.4°C (81.3°F), closely aligning with the preceding month. Nighttime temperatures in September average to an agreeable 22°C (71.6°F).

Heat index

During September, the heat index is estimated at a tropical 31°C (87.8°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially vital to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

The average relative humidity in September is 81%.

Rainfall

In September, the rain falls for 21.1 days. Throughout September, 46mm (1.81") of precipitation is accumulated. Throughout the year, there are 292.6 rainfall days, and 1477mm (58.15") of precipitation is accumulated.

Daylight

In Rowosari, the average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:40 and sunset at 17:39. On the last day of the month, sunrise is at 05:24 and sunset at 17:34 WIB.

Sunshine

In Rowosari, the average sunshine in September is 8.7h.

UV index

The months with the lowest UV index are January, June through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What are September temperatures?

The average high-temperature, in September, in Rowosari, is 27.4°C (81.3°F), while the average low-temperature is 22°C (71.6°F). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 31°C (87.8°F).

What is the average humidity in September?

In September, the average relative humidity is 81%.

How many days does it rain in September?

In Rowosari, during September, the rain falls for 21.1 days and regularly aggregates up to 46mm (1.81") of precipitation.

How many hours of daylight does Rowosari have in September?

In Rowosari, the average day length in September is 12h and 4min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 05:40 and sunset at 17:39. On the last day of the month, sunrise is at 05:24 and sunset at 17:34 WIB.

How long on average sun shines in September?

The average sunshine duration in September is 8.7h.

When is the lowest UV index?

The months with the lowest UV index are January, June through September, November and December, with an average maximum UV index of 6.

What is the UV index intensity in September?

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 Sun's UV rays.

Average temperature in September
Rowosari, Indonesia

Average temperature in September - Rowosari, Indonesia
  • Average high temperature in September: 27.4°C

The warmest months (with the highest average high temperature) are February, March and April (29°C).
The month with the lowest average high temperature is July (27°C).

  • Average low temperature in September: 22°C

The month with the highest average low temperature is April (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.7°C).

Average pressure in September
Rowosari, Indonesia

Average pressure in September - Rowosari, Indonesia
  • Average pressure in September: 1011.8mbar

The months with the highest atmospheric pressure are August and September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in September
Rowosari, Indonesia

Average wind speed in September - Rowosari, Indonesia
  • Average wind speed in September: 12km/h

The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is March (7.1km/h).

Average humidity in September
Rowosari, Indonesia

Average humidity in September - Rowosari, Indonesia
  • Average humidity in September: 81%

The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are January, March, October and December (80%).

Average rainfall in September
Rowosari, Indonesia

Average rainfall in September - Rowosari, Indonesia
  • Average rainfall in September: 46mm

The wettest months (with the highest rainfall) are January and March (185mm).
The driest month (with the least rainfall) is August (28mm).

Average rainfall days in September
Rowosari, Indonesia

Average rainfall days in September - Rowosari, Indonesia
  • Average rainfall days in September: 21.1 days

The month with the highest number of rainy days is January (28 days).
The month with the least rainy days is August (18.2 days).

Average daylight in September /
Average sunshine in September
Rowosari, Indonesia

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

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: 8h and 4min

The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 42min).

Average sunshine days in September
Rowosari, Indonesia

Average sunshine days in September - Rowosari, Indonesia
  • Average sunshine days in September: 3.7 days

The month with the most sunshine days is July (5.5 days).
The month with the least sunshine days is February (1.2 days).

Average UV index in September
Rowosari, Indonesia

Average UV index in September - Rowosari, Indonesia
  • Average UV index in September: 6

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

Average cloud cover in September
Rowosari, Indonesia

Average cloud cover in September - Rowosari, Indonesia
  • Average cloud cover in September: 40

The months with the most cloud cover are January and December (Cloud cover 47).
The months with the least cloud cover are May, June and August (Cloud cover 36).

Average visibility in September
Rowosari, Indonesia

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

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

Rowosari, Indonesia

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