September weather forecastBethel, Vanuatu

September

Weather in September

September sees a gradual increase in temperature, with an average high of 24.7°C (76.5°F). A slight rainfall increase to 43mm (1.69") signifies the approaching end of the dry season. Subtle increases in temperature and rainfall mark the transition from the drier winter season to the wetter summer season. The weather remains favorable for sightseeing and exploring the city’s numerous attractions. The unique climate of Bethel continues to allure visitors during this transitional period.

Temperature

Bethel's September average high-temperature settles at a still moderately hot 24.7°C (76.5°F), showing a near match with the preceding month. The month of September in Bethel is marked by an average minimum temperature of 23.6°C (74.5°F), slightly cooler than its daytime counterpart.

Humidity

January, May, July through September, with an average relative humidity of 77%, are the least humid months.

Rainfall

In Bethel, during September, the rain falls for 13.8 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, there are 231.1 rainfall days, and 1033mm (40.67") of precipitation is accumulated.

Daylight

In Bethel, the average length of the day in September is 11h and 59min.
On the first day of the month, sunrise is at 05:50 and sunset at 17:34. On the last day of September, sunrise is at 05:25 and sunset at 17:40 +11.

Sunshine

In September, the average sunshine is 6.9h.

UV index

May through October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

The high-temperature during September is 24.7°C (76.5°F) and the low-temperature is 23.6°C (74.5°F). In April, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 31°C (87.8°F).

The months with the lowest humidity are January, May, July through September, with an average relative humidity of 77%.

The average relative humidity in September is 77%.

In September, the rain falls for 13.8 days. Throughout September, 43mm (1.69") of precipitation is accumulated.

The average day length in September is 11h and 59min.

In September, on the first day of the month, sunrise is at 05:50 and sunset at 17:34. On the last day of the month, sunrise is at 05:25 and sunset at 17:40 +11.

In September, the average sunshine duration is 6.9h.

May through October, with an average maximum UV index of 6, are months with the lowest UV index.

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bethel, Vanuatu

  • Average high temperature in September: 24.7°C

The warmest month (with the highest average high temperature) is February (28.6°C).
The month with the lowest average high temperature is August (24.6°C).

  • Average low temperature in September: 23.6°C

The month with the highest average low temperature is February (27.6°C).
The coldest month (with the lowest average low temperature) is August (23.5°C).

Average pressure in September
Bethel, Vanuatu

  • Average pressure in September: 1014.5mbar

The month with the highest atmospheric pressure is August (1014.6mbar).
The month with the lowest atmospheric pressure is February (1006.7mbar).

Average wind speed in September
Bethel, Vanuatu

  • Average wind speed in September: 25.8km/h

The windiest month (with the highest average wind speed) is July (27.1km/h).
The calmest month (with the lowest average wind speed) is January (20.4km/h).

Average humidity in September
Bethel, Vanuatu

  • Average humidity in September: 77%

The months with the highest relative humidity are February, March, April, June, October, November and December (78%).
The months with the lowest relative humidity are January, May, July, August and September (77%).

Average rainfall in September
Bethel, Vanuatu

  • Average rainfall in September: 43mm

The wettest month (with the highest rainfall) is April (184mm).
The driest month (with the least rainfall) is July (34mm).

Average rainfall days in September
Bethel, Vanuatu

  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is March (25.9 days).
The month with the least rainy days is September (13.8 days).

Average daylight in September /
Average sunshine in September
Bethel, Vanuatu

  • 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: 11h and 0min).

  • Average sunshine in September: 6h and 54min

The month with the most sunshine is February (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 4h and 54min).

Average sunshine days in September
Bethel, Vanuatu

  • Average sunshine days in September: 8.7 days

The month with the most sunshine days is October (9.8 days).
The month with the least sunshine days is March (2.3 days).

Average UV index in September
Bethel, Vanuatu

  • Average UV index in September: 6

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

Average cloud cover in September
Bethel, Vanuatu

  • Average cloud cover in September: 50

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is February (Cloud cover 43).

Average visibility in September
Bethel, Vanuatu

  • 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).