September weather forecast
Cayon, Saint Kitts and Nevis

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Weather in September

As September comes around in Cayon, a notable change in weather pattern makes itself felt. The temperatures drop while rainfall continues to increase. Despite these conditions, the UV index and visibility remain good enough for outdoor activities. Rising to its annual peak, the average rainfall records around 50mm (1.97") during this month. Ample daylight and fresh air keep the city lively as the evenings begin to get cooler.

Temperature

September, characterized by an average high temperature of 28.7°C (83.7°F) and a low temperature of 27.7°C (81.9°F), is generally the warmest month.

Heat index

September's average heat index is evaluated at a tropical 33°C (91.4°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In September, the average relative humidity in Cayon is 77%.

Rainfall

In September, the rain falls for 18.3 days. Throughout September, 50mm (1.97") of precipitation is accumulated. In Cayon, Saint Kitts and Nevis, during the entire year, the rain falls for 198.3 days and collects up to 386mm (15.2") of precipitation.

Daylight

In Cayon, the average length of the day in September is 12h and 14min.
On the first day of September in Cayon, sunrise is at 05:57 and sunset at 18:24. On the last day of the month, sunrise is at 06:01 and sunset at 18:00 AST.

Sunshine

In Cayon, the average sunshine in September is 10.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Cayon. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What is the hottest time of year in Cayon?

September is the month when Cayon sees the average highest temperatures, with a high of 28.7°C (83.7°F) and a low of 27.7°C (81.9°F).

How hot is September in Cayon?

September temperatures vary between a high-temperature of 28.7°C (83.7°F) and a low-temperature of 27.7°C (81.9°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 33°C (91.4°F).

What is the average humidity in September in Cayon?

The average relative humidity in September in Cayon is 77%.

How much does it rain in Cayon in September?

In September, in Cayon, Saint Kitts and Nevis, the rain falls for 18.3 days. Throughout September, 50mm (1.97") of precipitation is accumulated.

How many hours of daylight does Cayon have in September?

In Cayon, the average day length in September is 12h and 14min.

When is the sunrise / sunset in September in Cayon?

On the first day of September in Cayon, sunrise is at 05:57 and sunset at 18:24. On the last day of the month, sunrise is at 06:01 and sunset at 18:00 AST.

How many hours of sunshine does Cayon have in September?

In September, the average sunshine duration in Cayon is 10.1h.

What are the months with the highest UV index in Cayon?

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

What is the month with the lowest UV index in Cayon?

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

How high is the UV index in September in Cayon?

In September, the average daily maximum UV index in Cayon, Saint Kitts and Nevis, is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in September
Cayon, Saint Kitts and Nevis

Average temperature in September - Cayon, Saint Kitts and Nevis
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is September (28.7°C).
The month with the lowest average high temperature is March (25.8°C).

  • Average low temperature in September: 27.7°C

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

Average pressure in September
Cayon, Saint Kitts and Nevis

Average pressure in September - Cayon, Saint Kitts and Nevis
  • Average pressure in September: 1013.2mbar

The months with the highest atmospheric pressure are January and June (1016.2mbar).
The months with the lowest atmospheric pressure are October and November (1012.5mbar).

Average wind speed in September
Cayon, Saint Kitts and Nevis

Average wind speed in September - Cayon, Saint Kitts and Nevis
  • Average wind speed in September: 20.4km/h

The windiest month (with the highest average wind speed) is July (26.3km/h).
The calmest month (with the lowest average wind speed) is October (19.6km/h).

Average humidity in September
Cayon, Saint Kitts and Nevis

Average humidity in September - Cayon, Saint Kitts and Nevis
  • Average humidity in September: 77%

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

Average rainfall in September
Cayon, Saint Kitts and Nevis

Average rainfall in September - Cayon, Saint Kitts and Nevis
  • Average rainfall in September: 50mm

The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is February (15mm).

Average rainfall days in September
Cayon, Saint Kitts and Nevis

Average rainfall days in September - Cayon, Saint Kitts and Nevis
  • Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (12.6 days).

Average daylight in September /
Average sunshine in September
Cayon, Saint Kitts and Nevis

Average daylight in September / Average sunshine in September - Cayon, Saint Kitts and Nevis
  • Average daylight in September: 12h and 1min

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

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in September
Cayon, Saint Kitts and Nevis

Average sunshine days in September - Cayon, Saint Kitts and Nevis
  • Average sunshine days in September: 8.4 days

The month with the most sunshine days is June (11.2 days).
The month with the least sunshine days is May (7.6 days).

Average UV index in September
Cayon, Saint Kitts and Nevis

Average UV index in September - Cayon, Saint Kitts and Nevis
  • 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
Cayon, Saint Kitts and Nevis

Average cloud cover in September - Cayon, Saint Kitts and Nevis
  • Average cloud cover in September: 37

The months with the most cloud cover are May, June and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 32).

Average visibility in September
Cayon, Saint Kitts and Nevis

Average visibility in September - Cayon, Saint Kitts and Nevis
  • 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).

Cayon, Saint Kitts and Nevis

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