Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September comes with an average high-temperature of a still moderately hot 29.1°C (84.4°F), equal to August's temperature. September nights cool to an average low-temperature of 24.7°C (76.5°F), a marginal decrease from its daytime equivalent.Heat index
In September, the average heat index is computed to be a torrid 35°C (95°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Heat index determinations are made taking into account the shade and light air movements. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
September and October, with an average relative humidity of 79%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 19.9 days and typically collects 61mm (2.4") of precipitation.Daylight
The average length of the day in September is 12h and 5min.On the first day of September, sunrise is at 06:33 and sunset at 18:36. On the last day of the month, sunrise is at 06:20 and sunset at 18:28 +10.
Sunshine
In September, the average sunshine is 8.5h.UV index
February 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 health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 7 during September leads to these instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What are the least humid months?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September in Krisa?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Krisa, Papua New Guinea
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is November (29.4°C).
The months with the lowest average high temperature are March and July (28.7°C).
- Average low temperature in September: 24.7°C
The months with the highest average low temperature are November and December (25.4°C).
The coldest month (with the lowest average low temperature) is September (24.7°C).
Average pressure in September
Krisa, Papua New Guinea
- Average pressure in September: 1009.8mbar
The month with the highest atmospheric pressure is September (1009.8mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in September
Krisa, Papua New Guinea
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is March (12.4km/h).
The calmest month (with the lowest average wind speed) is May (9km/h).
Average humidity in September
Krisa, Papua New Guinea
- Average humidity in September: 79%
The months with the highest relative humidity are March and April (82%).
The months with the lowest relative humidity are September and October (79%).
Average rainfall in September
Krisa, Papua New Guinea
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is December (219mm).
The driest month (with the least rainfall) is September (61mm).
Average rainfall days in September
Krisa, Papua New Guinea
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is January (28.6 days).
The month with the least rainy days is October (19.8 days).
Average daylight in September /
Average sunshine in September
Krisa, Papua New Guinea
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are May and October (Average sunshine: 8h and 42min).
The month with the least sunshine is March (Average sunshine: 7h and 24min).
Average sunshine days in September
Krisa, Papua New Guinea
- Average sunshine days in September: 8 days
The month with the most sunshine days is October (9.6 days).
The month with the least sunshine days is January (1.6 days).
Average UV index in September
Krisa, Papua New Guinea
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Krisa, Papua New Guinea
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Krisa, Papua New Guinea
- Average visibility in September: 10km
The months with the highest visibility are February, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, March and December (9km).
