Plymouth
Montserrat
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Plymouth, Montserrat

A beautiful day in the mountainous island of Plymouth, Montserrat
A beautiful day in the mountainous island of Plymouth, Montserrat
September, the first month of the autumn, in Plymouth, is also a hot month, with average temperature ranging between max 32°C (89.6°F) and min 24°C (75.2°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 32°C (89.6°F). In Plymouth, in September, the average low-temperature is 24°C (75.2°F).

Rainfall

In September, the rain falls for 18 days. Throughout September, 168mm (6.6") of precipitation is accumulated. In Plymouth, Montserrat, during the entire year, the rain falls for 212 days and collects up to 1640mm (64.6") of precipitation.

Sea temperature

Months with the warmest seawater are September and October, with an average sea temperature of 29°C (84.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Plymouth, the average length of the day in September is 12.2h.

Sunshine

Months with the least sunshine in Plymouth are September through December, with an average of 7h of sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Plymouth. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Plymouth?

In Plymouth, Montserrat, in September, the average high-temperature is 32°C (89.6°F), and the average low-temperature is 24°C (75.2°F).

How many days does it rain in September in Plymouth?

In Plymouth, in September, it is raining for 18 days, with typically 168mm (6.6") of accumulated precipitation.

When is the sea warmest in Plymouth?

Months with the warmest seawater in Plymouth, Montserrat, are September and October, with an average sea temperature of 29°C (84.2°F).

How warm is the water in September in Plymouth?

In Plymouth, Montserrat, in September, the average water temperature is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

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

In September, the average length of the day in Plymouth, Montserrat, is 12.2h.

What is the month with the least sunshine in Plymouth?

Months with the least sunshine are September through December, with an average of 7h of sunshine.

How long on average sun shines in September in Plymouth?

In Plymouth, Montserrat, the average sunshine in September is 7h.

When is the highest UV index in Plymouth?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Plymouth, Montserrat.

What is the UV index reading in September in Plymouth?

In September, the average daily maximum UV index is 12. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV rays.
Average temperature in September - Plymouth, Montserrat
  • Average high temperature in September: 32°C

Warmest months (with the highest average high temperature) are July and August (33°C).
Months with the lowest average high temperature are January and December (29°C).

  • Average low temperature in September: 24°C

Months with the highest average low temperature are June, July and August (25°C).
Coldest months (with the lowest average low temperature) are January, February and December (23°C).

Average rainfall in September - Plymouth, Montserrat
  • Average rainfall in September: 168mm

The wettest month (with the highest rainfall) is October (196mm).
The driest month (with the lowest rainfall) is February (86mm).

Average rainfall days in September - Plymouth, Montserrat
  • Average rainfall days in September: 18 days

The month with the highest number of rainy days is October (21 days).
Months with the lowest number of rainy days are February and April (14 days).

Average sea temperature in September - Plymouth, Montserrat
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are September and October (29°C).
Coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in September / Average sunshine in September - Plymouth, Montserrat
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in September: 7h

Months with most sunshine are January, February, March, April, May, June, July and August (Average sunshine: 8h).
Months with least sunshine are September, October, November and December (Average sunshine: 7).

Average UV index in September - Plymouth, Montserrat
  • Average UV index in September: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January and December (UV index 8).