September weather forecast
Holmes Hill, Saint Kitts and Nevis

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Weather in September

September brings in a slight cool-down, marking the onset of the end of summer in Holmes Hill. Temperatures begin a subtle decline, however, the weather remains largely warm. The month tops rainfall figures, reaching a maximum of 92mm (3.62"), offering a refreshing contrast to the preceding arid months. Preserving its reputation as a tropical paradise, the city receives sunlight for over 12 hours. The cooling temperature and increased rain occurrences give September a unique feel in the annual weather cycle.

Temperature

Holmes Hill's temperature records reveal September as the warmest month, marked by average highs of 28.8°C (83.8°F) and lows of 27.8°C (82°F).

Heat index

September's mean heat index is appraised at a hot 34°C (93.2°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Understand that the heat index values take into account shaded locations and mild winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Holmes Hill, Saint Kitts and Nevis, in September, during 21.9 rainfall days, 92mm (3.62") of precipitation is typically accumulated. In Holmes Hill, during the entire year, the rain falls for 261.5 days and collects up to 730mm (28.74") of precipitation.

Daylight

In Holmes Hill, Saint Kitts and Nevis, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:23. On the last day of September, sunrise is at 06:00 and sunset at 17:59 AST.

Sunshine

In September, the average sunshine in Holmes Hill is 10.3h.

UV index

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 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 the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

What time of the year is the hottest in Holmes Hill?

September, with average temperatures reaching a high of 28.8°C (83.8°F) and a low of 27.8°C (82°F), is the warmest month in Holmes Hill.

How hot is September in Holmes Hill?

The high-temperature in Holmes Hill during September is 28.8°C (83.8°F) and the low-temperature is 27.8°C (82°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in September is appraised at 34°C (93.2°F).

What is the average humidity in September in Holmes Hill?

In September, the average relative humidity is 77%.

How many days does it rain in September in Holmes Hill?

In Holmes Hill, Saint Kitts and Nevis, during September, the rain falls for 21.9 days and regularly aggregates up to 92mm (3.62") of precipitation.

How many hours of daylight does Holmes Hill have in September?

In Holmes Hill, Saint Kitts and Nevis, the average day length in September is 12h and 14min.

What time are sunrise and sunset in September in Holmes Hill?

In September, on the first day of the month, sunrise is at 05:56 and sunset at 18:23. On the last day of the month, sunrise is at 06:00 and sunset at 17:59 AST.

How long on average sun shines in September in Holmes Hill?

In September, the average sunshine duration is 10.3h.

When is the highest UV index in Holmes Hill?

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

When is the lowest UV index in Holmes Hill?

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

What is the UV index reading in September in Holmes Hill?

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in September
Holmes Hill, Saint Kitts and Nevis

Average temperature in September - Holmes Hill, Saint Kitts and Nevis
  • Average high temperature in September: 28.8°C

The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is March (25.9°C).

  • Average low temperature in September: 27.8°C

The month with the highest average low temperature is October (28°C).
The coldest month (with the lowest average low temperature) is March (25.1°C).

Average pressure in September
Holmes Hill, Saint Kitts and Nevis

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

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

Average wind speed in September
Holmes Hill, Saint Kitts and Nevis

Average wind speed in September - Holmes Hill, Saint Kitts and Nevis
  • Average wind speed in September: 20.5km/h

The windiest month (with the highest average wind speed) is July (26.4km/h).
The calmest month (with the lowest average wind speed) is October (19.8km/h).

Average humidity in September
Holmes Hill, Saint Kitts and Nevis

Average humidity in September - Holmes Hill, 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
Holmes Hill, Saint Kitts and Nevis

Average rainfall in September - Holmes Hill, Saint Kitts and Nevis
  • Average rainfall in September: 92mm

The wettest month (with the highest rainfall) is October (104mm).
The driest month (with the least rainfall) is February (29mm).

Average rainfall days in September
Holmes Hill, Saint Kitts and Nevis

Average rainfall days in September - Holmes Hill, Saint Kitts and Nevis
  • Average rainfall days in September: 21.9 days

The month with the highest number of rainy days is November (24.5 days).
The month with the least rainy days is June (18.7 days).

Average daylight in September /
Average sunshine in September
Holmes Hill, Saint Kitts and Nevis

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

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 6min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in September
Holmes Hill, Saint Kitts and Nevis

Average sunshine days in September - Holmes Hill, Saint Kitts and Nevis
  • Average sunshine days in September: 5 days

The month with the most sunshine days is March (6.4 days).
The month with the least sunshine days is November (2.2 days).

Average UV index in September
Holmes Hill, Saint Kitts and Nevis

Average UV index in September - Holmes Hill, 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
Holmes Hill, Saint Kitts and Nevis

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

The months with the most cloud cover are May and June (Cloud cover 41).
The month with the least cloud cover is February (Cloud cover 33).

Average visibility in September
Holmes Hill, Saint Kitts and Nevis

Average visibility in September - Holmes Hill, 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).

Holmes Hill, Saint Kitts and Nevis

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