August weather forecast
Port Antonio, Jamaica

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Weather in August

The weather in August mirrors that of July. Despite persistent rainfall, there are plenty of sunshine hours. A minimal drop in sea temperatures should not deter beach enthusiasts. The UV index remains unchanged suggesting continued intensity of solar radiation.

Temperature

July and August are characterised by peak temperatures, with an average high of 31°C (87.8°F).

Rainfall

In Port Antonio, Jamaica, in August, during 13 rainfall days, 197mm (7.76") of precipitation is typically accumulated. In Port Antonio, during the entire year, the rain falls for 125 days and collects up to 2639mm (103.9") of precipitation.

Sea temperature

In Port Antonio, the average seawater temperature in August is 29.6°C (85.3°F).
Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.

Daylight

In Port Antonio, the average length of the day in August is 12h and 43min.
On the first day of the month, sunrise is at 05:44 and sunset at 18:39. On the last day of August, in Port Antonio, sunrise is at 05:51 and sunset at 18:20 EST.

Sunshine

In August, the average sunshine is 7h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 12 suggests these recommendations:
Put into action all crucial precautions. Defense against sun damage is a must. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. After a swim or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

Frequently asked questions

What is the hottest time of year in Port Antonio?

Port Antonio's average highest temperatures are recorded in July and August, reaching a high of 31°C (87.8°F).

How hot does it get in Port Antonio in August?

During August, Port Antonio experiences an average high-temperature of 31°C (87.8°F) and a low-temperature of 22°C (71.6°F).

How much does it rain in Port Antonio in August?

In August, in Port Antonio, the rain falls for 13 days. Throughout August, 197mm (7.76") of precipitation is accumulated.

What is the water temperature in August in Port Antonio?

In Port Antonio, in August, the average water temperature is 29.6°C (85.3°F). 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.

What is the average length of the day in August in Port Antonio?

In August, the average day length in Port Antonio is 12h and 43min.

When is the sunrise / sunset in August in Port Antonio?

In August, on the first day of the month, sunrise is at 05:44 and sunset at 18:39. On the last day of the month, sunrise is at 05:51 and sunset at 18:20 EST.

How long on average sun shines in August in Port Antonio?

The average sunshine duration in August is 7h.

When is the highest UV index in Port Antonio?

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

What is the UV index reading in August in Port Antonio?

In Port Antonio, the average daily maximum UV index in August is 12. A UV Index estimate of 11, and higher, represents an excessive health risk from unprotected exposure to UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in August
Port Antonio, Jamaica

Average temperature in August - Port Antonio, Jamaica
  • Average high temperature in August: 31°C

The warmest months (with the highest average high temperature) are July and August (31°C).
The months with the lowest average high temperature are January, February, March, November and December (29°C).

  • Average low temperature in August: 22°C

The months with the highest average low temperature are June, July, August and September (22°C).
The coldest month (with the lowest average low temperature) is January (18°C).

Average rainfall in August
Port Antonio, Jamaica

Average rainfall in August - Port Antonio, Jamaica
  • Average rainfall in August: 197mm

The wettest month (with the highest rainfall) is November (352mm).
The driest month (with the least rainfall) is March (75mm).

Average rainfall days in August
Port Antonio, Jamaica

Average rainfall days in August - Port Antonio, Jamaica
  • Average rainfall days in August: 13 days

The month with the highest number of rainy days is October (16 days).
The months with the least rainy days are February and March (6 days).

Average sea temperature in August
Port Antonio, Jamaica

Average sea temperature in August - Port Antonio, Jamaica
  • Average sea temperature in August: 29.6°C

The best month for swimming (with the highest average sea temperature) is September (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

Average daylight in August /
Average sunshine in August
Port Antonio, Jamaica

Average daylight in August / Average sunshine in August - Port Antonio, Jamaica
  • Average daylight in August: 12h and 4min

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 August: 7h

The months with the most sunshine are March, April and July (Average sunshine: 8h).
The months with the least sunshine are September, October and November (Average sunshine: 6h).

Average UV index in August
Port Antonio, Jamaica

Average UV index in August - Port Antonio, Jamaica
  • Average UV index in August: 12

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

Port Antonio, Jamaica

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