September weather forecastPort Hedland, Australia
September
Weather in September
September, the first month of the spring in Port Hedland, is a hot month, with an average temperature ranging between min 21.6°C (70.9°F) and max 30.9°C (87.6°F).Temperature
As Port Hedland welcomes September, the average high-temperature stabilizes at a tropical 30.9°C (87.6°F), showing little deviation from August's 28.3°C (82.9°F). The average low-temperature in Port Hedland, Australia, during September nights is an agreeable 21.6°C (70.9°F).Heat index
September's mean heat index is estimated at a hot 31°C (87.8°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 40%.Rainfall
The months with the least rainfall are August through October Rain falls for 0.5 days and accumulates 1mm (0.04") of rain.Sea temperature
In Port Hedland, Australia, the average seawater temperature in September is 23.8°C (74.8°F).Note: Think about diving into 23.8°C (74.8°F) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
In Port Hedland, Australia, the average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 6:14 am and sunset at 5:57 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 6:03 pm AWST.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Port Hedland, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! The UV strength of the Sun elevates when reflected off water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Port Hedland, Australia
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is March (35.6°C).
The month with the lowest average high temperature is July (26.7°C).
- Average low temperature in September: 21.6°C
The month with the highest average low temperature is February (29.2°C).
The coldest month (with the lowest average low temperature) is July (19.2°C).
Average pressure in September
Port Hedland, Australia
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is July (1016.6mbar).
The month with the lowest atmospheric pressure is January (1004.8mbar).
Average wind speed in September
Port Hedland, Australia
- Average wind speed in September: 18.7km/h
The windiest month (with the highest average wind speed) is December (20.6km/h).
The calmest month (with the lowest average wind speed) is April (17km/h).
Average humidity in September
Port Hedland, Australia
- Average humidity in September: 40%
The month with the highest relative humidity is January (60%).
The months with the lowest relative humidity are August and September (40%).
Average rainfall in September
Port Hedland, Australia
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (100mm).
The driest months (with the least rainfall) are August, September and October (1mm).
Average rainfall days in September
Port Hedland, Australia
- Average rainfall days in September: 0.5 days
The month with the highest number of rainy days is January (11.4 days).
The months with the least rainy days are August and September (0.5 days).
Average sea temperature in September
Port Hedland, Australia
- Average sea temperature in September: 23.8°C
The best month for swimming (with the highest average sea temperature) is March (30.5°C).
The coldest month (with the lowest average sea temperature) is August (23.5°C).
Average daylight in September /
Average sunshine in September
Port Hedland, Australia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are October and November (Average sunshine: 12h and 12min).
The months with the least sunshine are May and June (Average sunshine: 7h and 18min).
Average sunshine days in September
Port Hedland, Australia
- Average sunshine days in September: 29.2 days
The month with the most sunshine days is August (30.4 days).
The month with the least sunshine days is January (16.9 days).
Average UV index in September
Port Hedland, Australia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, October, November and December (UV index 8).
The months with the lowest UV index are May, June and July (UV index 6).
Average cloud cover in September
Port Hedland, Australia
- Average cloud cover in September: 4
The month with the most cloud cover is January (Cloud cover 23).
The months with the least cloud cover are August and September (Cloud cover 4).
Average visibility in September
Port Hedland, Australia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





