Adamstown
Pitcairn
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Adamstown, Pitcairn

Splendid view of the British territory of Adamstown in the Pitcairn Island viewed from the Pacific waters
Splendid view of the British territory of Adamstown in the Pitcairn Island viewed from the Pacific waters
September, the first month of the spring, in Adamstown, is also an agreeable month, with average temperature ranging between min 16.4°C (61.5°F) and max 21.1°C (70°F).

Temperature

In Adamstown, the average high-temperature is essentially the same as in August - a still agreeable 21.1°C (70°F). The average low-temperature, in Adamstown, Pitcairn, is 16.4°C (61.5°F).

Rainfall

In September, the rain falls for 10.9 days. Throughout September, 138mm (5.4") of precipitation is accumulated. Throughout the year, in Adamstown, there are 149.6 rainfall days, and 1633mm (64.3") of precipitation is accumulated.

Sea temperature

Months with the coldest seawater are August and September, with an average sea temperature of 22.3°C (72.1°F).
Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.3°C (72.1°F).

Daylight

The average length of the day in September is 12h.

Sunshine

In Adamstown, Pitcairn, the average sunshine is 5h.

UV index

In September, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Adamstown?

The average high-temperature, in September, in Adamstown, Pitcairn, is 21.1°C (70°F), while the average low-temperature is 16.4°C (61.5°F).

How many days does it rain in September in Adamstown?

In Adamstown, Pitcairn, during September, the rain falls for 10.9 days and regularly aggregates up to 138mm (5.4") of precipitation.

What months are the sea coldest in Adamstown?

August and September, with an average sea temperature of 22.3°C (72.1°F), are months with the coldest seawater in Adamstown, Pitcairn.

What is the sea temperature in September in Adamstown?

In Adamstown, the average seawater temperature in September is 22.3°C (72.1°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.3°C (72.1°F).

What is the average length of the day in September in Adamstown?

In Adamstown, the average length of the day in September is 12h.

How many hours of sunshine does Adamstown have in September?

In September, the average sunshine in Adamstown, Pitcairn, is 5h.

How high is the UV index in September in Adamstown?

In September, the average daily maximum UV index is 9. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV rays.
Average temperature in September - Adamstown, Pitcairn
  • Average high temperature in September: 21.1°C

The warmest month (with the highest average high temperature) is February (26.2°C).
The month with the lowest average high temperature is August (20.6°C).

  • Average low temperature in September: 16.4°C

The month with the highest average low temperature is February (21°C).
The coldest month (with the lowest average low temperature) is August (16°C).

Average rainfall in September - Adamstown, Pitcairn
  • Average rainfall in September: 138mm

The wettest month (with the highest rainfall) is December (163mm).
The driest month (with the lowest rainfall) is March (119mm).

Average rainfall days in September - Adamstown, Pitcairn
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is April (16 days).
The month with the lowest number of rainy days is October (9 days).

Average sea temperature in September - Adamstown, Pitcairn
  • Average sea temperature in September: 22.3°C

The best month for swimming (with the highest average sea temperature) is March (27.3°C).
Coldest months (with the lowest average sea temperature) are August and September (22.3°C).

Average daylight in September / Average sunshine in September - Adamstown, Pitcairn
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 13.7h).
The month with shortest days is June (Average daylight: 10.6h).

  • Average sunshine in September: 5h

Months with most sunshine are January, February and March (Average sunshine: 14h).
The month with least sunshine is August (Average sunshine: 4h).

Average UV index in September - Adamstown, Pitcairn
  • Average UV index in September: 9

Months with the highest UV index are January, February, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 5).