September weather forecastFrith, Montserrat

September

Weather in September

September brings a slight rise in temperatures reaching an average high of 28.9°C (84°F), forming the warmest month of the year. As the summer continues, the scenery evolves with the changing weather. Despite a reduction in wind speed to 20.5km/h (12.7mph), the high humidity is kept in balance. The landscape, dotted with tropical flora, offers picture-perfect views in the ample daylight. The cooling temperatures in the latter part of the month indicate the inception of the anticipated autumn season.

Temperature

In Frith, September records the highest average temperatures, peaking at 28.9°C (84°F) and reaching a low of 27.8°C (82°F).

Heat index

In September, the average heat index is evaluated at a hot 34°C (93.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

In Frith, the average relative humidity in September is 76%.

Rainfall

In Frith, during September, the rain falls for 23.2 days and regularly aggregates up to 87mm (3.43") of precipitation. Throughout the year, there are 266.4 rainfall days, and 724mm (28.5") of precipitation is accumulated.

Daylight

In Frith, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:21. On the last day of September, sunrise is at 05:58 and sunset at 17:58 AST.

Sunshine

In September, the average sunshine is 10.8h.

UV index

The months with the highest UV index in Frith are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Shield from overexposure. Defense against sun-related harm is required. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

September proves to be the warmest month, recording an average peak temperature of 28.9°C (84°F) and a minimum temperature of 27.8°C (82°F).

In Frith, 28.9°C (84°F) is the average high-temperature and 27.8°C (82°F) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 34°C (93.2°F).

In Frith, Montserrat, the average relative humidity in September is 76%.

In September, in Frith, the rain falls for 23.2 days. Throughout September, 87mm (3.43") of precipitation is accumulated.

The average day length in September is 12h and 13min.

In September, on the first day of the month, sunrise is at 05:55 and sunset at 18:21. On the last day of the month, sunrise is at 05:58 and sunset at 17:58 AST.

The average sunshine duration in September is 10.8h.

The months with the highest UV index are January through December, with an average maximum UV index of 7.

The months with the lowest UV index in Frith are January through December, with an average maximum UV index of 7.

In Frith, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Frith, Montserrat

  • Average high temperature in September: 28.9°C

The warmest month (with the highest average high temperature) is September (28.9°C).
The month with the lowest average high temperature is March (26.1°C).

  • Average low temperature in September: 27.8°C

The month with the highest average low temperature is September (27.8°C).
The coldest month (with the lowest average low temperature) is February (24.9°C).

Average pressure in September
Frith, Montserrat

  • Average pressure in September: 1013.1mbar

The months with the highest atmospheric pressure are January and June (1016mbar).
The months with the lowest atmospheric pressure are October and November (1012.4mbar).

Average wind speed in September
Frith, Montserrat

  • Average wind speed in September: 20.5km/h

The windiest month (with the highest average wind speed) is July (27km/h).
The calmest month (with the lowest average wind speed) is October (19.8km/h).

Average humidity in September
Frith, Montserrat

  • Average humidity in September: 76%

The months with the highest relative humidity are May, July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).

Average rainfall in September
Frith, Montserrat

  • Average rainfall in September: 87mm

The wettest month (with the highest rainfall) is October (101mm).
The driest months (with the least rainfall) are February and March (27mm).

Average rainfall days in September
Frith, Montserrat

  • Average rainfall days in September: 23.2 days

The month with the highest number of rainy days is December (24.4 days).
The month with the least rainy days is March (18.7 days).

Average daylight in September /
Average sunshine in September
Frith, Montserrat

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in September: 10h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 42min).

Average sunshine days in September
Frith, Montserrat

  • Average sunshine days in September: 3.9 days

The month with the most sunshine days is March (5.9 days).
The month with the least sunshine days is July (1.8 days).

Average UV index in September
Frith, Montserrat

  • Average UV index in September: 7

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

Average cloud cover in September
Frith, Montserrat

  • Average cloud cover in September: 35

The months with the most cloud cover are June and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 31).

Average visibility in September
Frith, Montserrat

  • 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).