August weather forecast
Horta, Portugal

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Weather in August

The last month of the summer, August, is also an agreeable month in Horta, Portugal, with temperature in the range of an average high of 22.8°C (73°F) and an average low of 21.3°C (70.3°F).

Temperature

With average high and low temperatures of 22.8°C (73°F) and 21.3°C (70.3°F) respectively, August is Horta's warmest month.

Humidity

The average relative humidity in August in Horta is 81%.

Rainfall

In Horta, during August, the rain falls for 13.7 days and regularly aggregates up to 40mm (1.57") of precipitation. In Horta, Portugal, during the entire year, the rain falls for 191.6 days and collects up to 629mm (24.76") of precipitation.

Sea temperature

With an average sea temperature of 23.9°C (75°F), August is the month with the warmest seawater in Horta, Portugal.
Note: The cold tolerance of an individual, along with sunshine, wind, and the temperature of the environment, affects the enjoyment of swimming in 23.9°C (75°F) waters. (Olympic swimmers participate in waters ranging from 25°C (77°F) to 28°C (82.4°F).)

Daylight

The average length of the day in August in Horta is 13h and 37min.
On the first day of August, sunrise is at 06:56 and sunset at 21:04. On the last day of the month, sunrise is at 07:23 and sunset at 20:25 +00.

Sunshine

In Horta, the average sunshine in August is 7.8h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Notice! Sand and water reflections contribute to a stronger UV exposure.
Resources | Updated: Feb 2, 2024 | Published by: Weather Atlas

Frequently asked questions

What are the warmest months in Horta?

Horta witnesses the warmest weather in August, with temperatures averaging a high of 22.8°C (73°F) and a low of 21.3°C (70.3°F).

What are the temperatures in Horta in August?

In August, in Horta, the average high-temperature is 22.8°C (73°F), and the average low-temperature is 21.3°C (70.3°F).

What is the average humidity in August in Horta?

In August, the average relative humidity in Horta, Portugal, is 81%.

How much does it rain in Horta in August?

In Horta, in August, during 13.7 rainfall days, 40mm (1.57") of precipitation is typically accumulated.

What month is the sea warmest in Horta?

The month with the warmest seawater in Horta is August, with an average sea temperature of 23.9°C (75°F).

What is the sea temperature in August in Horta?

In August, the average sea temperature in Horta is 23.9°C (75°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.9°C (75°F) water.

What is the average length of the day in August in Horta?

In August, the average day length is 13h and 37min.

What time are sunrise and sunset in August in Horta?

In August, on the first day of the month, sunrise is at 06:56 and sunset at 21:04. On the last day of the month, sunrise is at 07:23 and sunset at 20:25 +00.

How long on average sun shines in August in Horta?

The average sunshine duration in August is 7.8h.

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

The months with the highest UV index in Horta are July and August, with an average maximum UV index of 6.

How high is the UV index in August in Horta?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in August
Horta, Portugal

Average temperature in August - Horta, Portugal
  • Average high temperature in August: 22.8°C

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is March (15.4°C).

  • Average low temperature in August: 21.3°C

The month with the highest average low temperature is August (21.3°C).
The coldest month (with the lowest average low temperature) is March (13.8°C).

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Average pressure in August
Horta, Portugal

Average pressure in August - Horta, Portugal
  • Average pressure in August: 1022.2mbar

The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is October (1016.8mbar).

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Average wind speed in August
Horta, Portugal

Average wind speed in August - Horta, Portugal
  • Average wind speed in August: 16.1km/h

The windiest month (with the highest average wind speed) is December (26.6km/h).
The calmest month (with the lowest average wind speed) is July (14.9km/h).

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Average humidity in August
Horta, Portugal

Average humidity in August - Horta, Portugal
  • Average humidity in August: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (78%).

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Average rainfall in August
Horta, Portugal

Average rainfall in August - Horta, Portugal
  • Average rainfall in August: 40mm

The wettest month (with the highest rainfall) is December (90mm).
The driest month (with the least rainfall) is July (25mm).

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Average rainfall days in August
Horta, Portugal

Average rainfall days in August - Horta, Portugal
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is December (19 days).
The months with the least rainy days are June and July (12.5 days).

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Average sea temperature in August
Horta, Portugal

Average sea temperature in August - Horta, Portugal
  • Average sea temperature in August: 23.9°C

The best month for swimming (with the highest average sea temperature) is August (23.9°C).
The coldest month (with the lowest average sea temperature) is March (15.8°C).

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Average daylight in August /
Average sunshine in August
Horta, Portugal

Average daylight in August / Average sunshine in August - Horta, Portugal
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 7h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

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Average sunshine days in August
Horta, Portugal

Average sunshine days in August - Horta, Portugal
  • Average sunshine days in August: 11.6 days

The month with the most sunshine days is July (14.2 days).
The month with the least sunshine days is February (6.8 days).

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Average UV index in August
Horta, Portugal

Average UV index in August - Horta, Portugal
  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 4).

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Average cloud cover in August
Horta, Portugal

Average cloud cover in August - Horta, Portugal
  • Average cloud cover in August: 45

The month with the most cloud cover is November (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 43).

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Average visibility in August
Horta, Portugal

Average visibility in August - Horta, Portugal
  • 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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Horta, Portugal

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