August weather forecast
Basseterre, Saint Kitts and Nevis

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A bridge across the lovely waters leading to Basseterre, Saint Kitts, and Nevis
A bridge across the lovely waters leading to Basseterre, Saint Kitts, and Nevis

Weather in August

August in Basseterre sees the rainfall intensity hitting a high note once again, matching up to the levels experienced in May. The average temperatures hover around similar values, adding continuity to the weather elements of the previous month. Nevertheless, cumulative sunshine hours contribute to the overall warmth of the atmosphere. The tropical city beams with life and energy, facilitated by the mix of rain and sunshine. The weather does influence the ongoing mid-summer festivities, making August a month of memorable revelries.

Temperature

Basseterre records a slight change with August's average high-temperatures adjusting to a still warm 28.5°C (83.3°F) from July's 28.2°C (82.8°F). Basseterre's nighttime average temperature in August drops marginally from the daytime highs, settling at a still warm 27.6°C (81.7°F).

Heat index

August's average heat index is estimated at a tropical 33°C (91.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

The months with the highest humidity are May through August, with an average relative humidity of 78%.

Rainfall

In Basseterre, during August, the rain falls for 18.8 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, in Basseterre, there are 198.3 rainfall days, and 386mm (15.2") of precipitation is accumulated.

Sea temperature

In Basseterre, Saint Kitts and Nevis, in August, the average water temperature is 28°C (82.4°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

In Basseterre, the average length of the day in August is 12h and 41min.
On the first day of August in Basseterre, sunrise is at 05:50 and sunset at 18:43. On the last day of the month, sunrise is at 05:56 and sunset at 18:24 AST.

Sunshine

August has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index in Basseterre, Saint Kitts and Nevis, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Basseterre, Saint Kitts and Nevis, are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during August leads to these instructions:
Shun overexposure. Protection from sun ravages is indispensable. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
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Frequently asked questions

How hot does it get in Basseterre in August?

In Basseterre, in August, the average high-temperature is 28.5°C (83.3°F), and the average low-temperature is 27.6°C (81.7°F). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 33°C (91.4°F).

What are the most humid months in Basseterre?

The months with the highest humidity in Basseterre are May through August, with an average relative humidity of 78%.

What is the average humidity in August in Basseterre?

The average relative humidity in August in Basseterre is 78%.

How many days does it rain in August in Basseterre?

In Basseterre, in August, it is raining for 18.8 days, with typically 43mm (1.69") of accumulated precipitation.

What is the sea water temperature in August in Basseterre?

In Basseterre, Saint Kitts and Nevis, the average seawater temperature in August is 28°C (82.4°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 August in Basseterre?

In August, the average day length in Basseterre, Saint Kitts and Nevis, is 12h and 41min.

When are sunrise and sunset in August in Basseterre?

On the first day of August, sunrise is at 05:50 and sunset at 18:43. On the last day of the month, sunrise is at 05:56 and sunset at 18:24 AST.

What month has the most sunshine in Basseterre?

The month with the most sunshine in Basseterre, Saint Kitts and Nevis, is August, with an average of 10.7h of sunshine.

How long on average sun shines in August in Basseterre?

In August, the average sunshine duration in Basseterre, Saint Kitts and Nevis, is 10.7h.

When is the highest UV index in Basseterre?

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

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

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

How high is the UV index in August in Basseterre?

In Basseterre, Saint Kitts and Nevis, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.

Average temperature in August
Basseterre, Saint Kitts and Nevis

Average temperature in August - Basseterre, Saint Kitts and Nevis
  • Average high temperature in August: 28.5°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 August: 27.6°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).

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Average pressure in August
Basseterre, Saint Kitts and Nevis

Average pressure in August - Basseterre, Saint Kitts and Nevis
  • Average pressure in August: 1014.6mbar

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).

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Average wind speed in August
Basseterre, Saint Kitts and Nevis

Average wind speed in August - Basseterre, Saint Kitts and Nevis
  • Average wind speed in August: 24.6km/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).

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Average humidity in August
Basseterre, Saint Kitts and Nevis

Average humidity in August - Basseterre, Saint Kitts and Nevis
  • Average humidity in August: 78%

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%).

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Average rainfall in August
Basseterre, Saint Kitts and Nevis

Average rainfall in August - Basseterre, Saint Kitts and Nevis
  • Average rainfall in August: 43mm

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

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Average rainfall days in August
Basseterre, Saint Kitts and Nevis

Average rainfall days in August - Basseterre, Saint Kitts and Nevis
  • Average rainfall days in August: 18.8 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).

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Average sea temperature in August
Basseterre, Saint Kitts and Nevis

Average sea temperature in August - Basseterre, Saint Kitts and Nevis
  • Average sea temperature in August: 28°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February and March (26°C).

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Average daylight in August /
Average sunshine in August
Basseterre, Saint Kitts and Nevis

Average daylight in August / Average sunshine in August - Basseterre, Saint Kitts and Nevis
  • Average daylight in August: 12h and 4min

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 August: 10h and 4min

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).

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Average sunshine days in August
Basseterre, Saint Kitts and Nevis

Average sunshine days in August - Basseterre, Saint Kitts and Nevis
  • Average sunshine days in August: 7.7 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).

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Average UV index in August
Basseterre, Saint Kitts and Nevis

Average UV index in August - Basseterre, Saint Kitts and Nevis
  • Average UV index in August: 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).

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Average cloud cover in August
Basseterre, Saint Kitts and Nevis

Average cloud cover in August - Basseterre, Saint Kitts and Nevis
  • Average cloud cover in August: 39

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).

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Average visibility in August
Basseterre, Saint Kitts and Nevis

Average visibility in August - Basseterre, Saint Kitts and Nevis
  • Average visibility in August: 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).

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Basseterre, Saint Kitts and Nevis

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