September weather forecastMriyan, Indonesia

September

Weather in September

September, the first month of the spring in Mriyan, is still a warm month, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 28.2°C (82.8°F).

Temperature

The arrival of September brings an average high-temperature of a still moderately hot 28.2°C (82.8°F), closely following the temperature pattern of August. Mriyan encounters a steady low-temperature average of 21.3°C (70.3°F) throughout the month of September.

Heat index

For most parts of September, the heat index is appraised at a hot 33°C (91.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

September and October, with an average relative humidity of 80%, are the least humid months in Mriyan.

Rainfall

In Mriyan, during September, the rain falls for 18.3 days and regularly aggregates up to 55mm (2.17") of precipitation. In Mriyan, during the entire year, the rain falls for 296.5 days and collects up to 1844mm (72.6") of precipitation.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 05:38 and sunset at 17:37. On the last day of September, in Mriyan, sunrise is at 05:22 and sunset at 17:32 WIB.

Sunshine

In Mriyan, the average sunshine in September is 8.6h.

UV index

January, April through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Mriyan, records 28.2°C (82.8°F), while the low-temperature is 21.3°C (70.3°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 33°C (91.4°F).

The months with the lowest humidity in Mriyan, Indonesia, are September and October, with an average relative humidity of 80%.

In September, the average relative humidity in Mriyan is 80%.

In Mriyan, Indonesia, during September, the rain falls for 18.3 days and regularly aggregates up to 55mm (2.17") of precipitation.

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

On the first day of September, sunrise is at 05:38 and sunset at 17:37. On the last day of the month, sunrise is at 05:22 and sunset at 17:32 WIB.

In Mriyan, Indonesia, the average sunshine duration in September is 8.6h.

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

The average daily maximum UV index in September in Mriyan, Indonesia, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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

27.7°C

28.2°C

29.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.1km/h

12.6km/h

11.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

12.3

7.3

2.8

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Mriyan, Indonesia

Average high temperature in September: 28.2°C

The warmest month (with the highest average high temperature) is October (29.1°C).
The month with the lowest average high temperature is July (27.3°C).

Average low temperature in September: 21.3°C

The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).

Average pressure in September
Mriyan, 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
Mriyan, Indonesia

Average wind speed in September: 10.7km/h

The windiest month (with the highest average wind speed) is August (11.5km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).

Average humidity in September
Mriyan, Indonesia

Average humidity in September: 80%

The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).

Average rainfall in September
Mriyan, Indonesia

Average rainfall in September: 55mm

The wettest month (with the highest rainfall) is March (242mm).
The driest month (with the least rainfall) is August (25mm).

Average rainfall days in September
Mriyan, Indonesia

Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.6 days).

Average daylight in September /
Average sunshine in September
Mriyan, 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: 8h and 36min

The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in September
Mriyan, Indonesia

Average sunshine days in September: 7.3 days

The month with the most sunshine days is August (12.3 days).
The month with the least sunshine days is March (0.5 days).

Average UV index in September
Mriyan, Indonesia

Average UV index in September: 6

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

Average cloud cover in September
Mriyan, Indonesia

Average cloud cover in September: 42

The months with the most cloud cover are January and December (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 38).

Average visibility in September
Mriyan, Indonesia

Average visibility in September: 10km

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