September weather forecast
Baai, Papua New Guinea

September

Weather in September

September, the first month of the spring in Baai, is also a moderately hot month, with an average temperature varying between 25.1°C (77.2°F) and 28.7°C (83.7°F).

Temperature

September's advent notes a subtle adjustment in average high-temperature to a still moderately hot 28.7°C (83.7°F) from August. Baai encounters a negligible difference from daytime peaks throughout the September nights, with a low-temperature average of 25.1°C (77.2°F).

Heat index

September's average heat index is calculated to be a tropical 34°C (93.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

In Baai, the average relative humidity in September is 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 24.4 days and typically collects 109mm (4.29") of precipitation.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:50 and sunset at 17:52. On the last day of September, sunrise is at 05:36 and sunset at 17:45 +10.

Sunshine

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

UV index

The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during September leads to these advisories:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

How hot is September?
Baai in September has an average high-temperature of 28.7°C (83.7°F) and an average low-temperature of 25.1°C (77.2°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 34°C (93.2°F).
What is the average humidity in September?
In Baai, the average relative humidity in September is 79%.
What is the driest month?
September is the month with the least rainfall. Rain falls for 24.4 days and accumulates 109mm (4.29") of precipitation.
How much does it rain in September?
In Baai, during September, the rain falls for 24.4 days and regularly aggregates up to 109mm (4.29") of precipitation.
How many hours of daylight does Baai have in September?
In Baai, the average day length in September is 12h and 5min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:50 and sunset at 17:52. On the last day of the month, sunrise is at 05:36 and sunset at 17:45 +10.
How many hours of sunshine does Baai have in September?
In Baai, the average sunshine duration in September is 8.6h.
What is the month with the highest UV index?
The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7.
What is the UV index intensity in September?
In Baai, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Baai, Papua New Guinea
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is May (29.3°C).
The month with the lowest average high temperature is July (28.4°C).

  • Average low temperature in September: 25.1°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is September (25.1°C).

Average pressure in September
Baai, Papua New Guinea
  • Average pressure in September: 1010mbar

The months with the highest atmospheric pressure are August and September (1010mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).

Average wind speed in September
Baai, Papua New Guinea
  • Average wind speed in September: 11.5km/h

The windiest month (with the highest average wind speed) is August (13.6km/h).
The calmest month (with the lowest average wind speed) is April (7.5km/h).

Average humidity in September
Baai, Papua New Guinea
  • Average humidity in September: 79%

The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are October and November (77%).

Average rainfall in September
Baai, Papua New Guinea
  • Average rainfall in September: 109mm

The wettest month (with the highest rainfall) is March (226mm).
The driest month (with the least rainfall) is September (109mm).

Average rainfall days in September
Baai, Papua New Guinea
  • Average rainfall days in September: 24.4 days

The month with the highest number of rainy days is March (27.9 days).
The month with the least rainy days is September (24.4 days).

Average daylight in September /
Average sunshine in September
Baai, Papua New Guinea
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are January and February (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).

Average sunshine days in September
Baai, Papua New Guinea
  • Average sunshine days in September: 4.3 days

The month with the most sunshine days is October (4.4 days).
The month with the least sunshine days is April (1.6 days).

Average UV index in September
Baai, Papua New Guinea
  • Average UV index in September: 7

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

Average cloud cover in September
Baai, Papua New Guinea
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are May, September, October and November (Cloud cover 36).

Average visibility in September
Baai, Papua New Guinea
  • Average visibility in September: 10km

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

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