September weather forecastMuang Phiang, Laos
September
Weather in September
September in Muang Phiang brings a slow ending to the monsoon season. The temperatures and rainfall start to decrease from this month, offering a slight respite from the preceding wet spell. Even though cloud cover is still substantial, sunshine hours see a slight increase. The winds, gusting up to 4.8km/h (3mph), bring about a cool change from the previous months' heavy rainfall. This month, the city witnesses the magic of the monsoon's end and the beginning of more balmy weather, providing a unique travel experience.Temperature
Muang Phiang's average high-temperature marks a still warm 29.5°C (85.1°F) with the advent of September, closely mirroring that of the preceding month. September's average low-temperature reading in Muang Phiang settles at a comfortable 19.4°C (66.9°F).Heat index
The heat index for September is calculated to be a fiery hot 37°C (98.6°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Muang Phiang, the average relative humidity in September is 84%.Rainfall
In Muang Phiang, in September, during 27.9 rainfall days, 144mm (5.67") of precipitation is typically accumulated. In Muang Phiang, during the entire year, the rain falls for 227.1 days and collects up to 1191mm (46.89") of precipitation.Daylight
The average length of the day in September in Muang Phiang, Laos, is 12h and 15min.On the first day of the month, sunrise is at 05:58 and sunset at 18:28. On the last day of September, in Muang Phiang, sunrise is at 06:04 and sunset at 18:03 +07.
Sunshine
In September, the average sunshine is 7.9h.UV index
February through July, September through November, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 6 in September leads to these guidelines:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Muang Phiang, Laos
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is April (33.4°C).
The month with the lowest average high temperature is December (26.1°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is June (20.7°C).
The coldest months (with the lowest average low temperature) are January and December (11.6°C).
Average pressure in September
Muang Phiang, Laos
- Average pressure in September: 1008.6mbar
The month with the highest atmospheric pressure is December (1015.2mbar).
The month with the lowest atmospheric pressure is July (1005.9mbar).
Average wind speed in September
Muang Phiang, Laos
- Average wind speed in September: 2.9km/h
The windiest month (with the highest average wind speed) is March (4.2km/h).
The calmest month (with the lowest average wind speed) is September (2.9km/h).
Average humidity in September
Muang Phiang, Laos
- Average humidity in September: 84%
The month with the highest relative humidity is August (89%).
The month with the lowest relative humidity is March (53%).
Average rainfall in September
Muang Phiang, Laos
- Average rainfall in September: 144mm
The wettest month (with the highest rainfall) is August (293mm).
The driest month (with the least rainfall) is February (7mm).
Average rainfall days in September
Muang Phiang, Laos
- Average rainfall days in September: 27.9 days
The month with the highest number of rainy days is August (30.4 days).
The month with the least rainy days is February (4.1 days).
Average daylight in September /
Average sunshine in September
Muang Phiang, Laos
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is April (Average sunshine: 10h and 36min).
The month with the least sunshine is July (Average sunshine: 6h and 24min).
Average sunshine days in September
Muang Phiang, Laos
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is August (0.2 days).
Average UV index in September
Muang Phiang, Laos
- Average UV index in September: 6
The months with the highest UV index are February, March, April, May, June, July, September, October and November (UV index 6).
The months with the lowest UV index are January, August and December (UV index 5).
Average cloud cover in September
Muang Phiang, Laos
- Average cloud cover in September: 54
The month with the most cloud cover is July (Cloud cover 68).
The month with the least cloud cover is February (Cloud cover 19).
Average visibility in September
Muang Phiang, Laos
- Average visibility in September: 7km
The months with the highest visibility are March and April (10km).
The month with the lowest visibility is July (6km).





