August weather forecastCallao, Peru
August
Weather in August
The weather in Callao, Peru in August signals a slight relenting of winter's grip, as temperatures begin to climb from July's lows. Despite shorter daylight lengths, the sun reappears more frequently, lending a bright tint to the city. Sea temperatures register a subtle rise to 16.3°C (61.3°F), though remaining unfavorable for most water activities. The strength of the wind mildly curtails, yet it sustains a refreshingly crisp environment. Meanwhile, with diminished rainfall, the city regains its predominantly dry ambiance.Temperature
Callao's coldest weather arrives in August, when temperatures average a high of 19.8°C (67.6°F) and a low of 15.2°C (59.4°F).Humidity
With an average relative humidity of 77%, August is the least humid month.Rainfall
The months with the most rainfall in Callao are February, March, June through August, with an average 2mm (0.08") of precipitation.Sea temperature
In Callao, the average seawater temperature in August is 16.3°C (61.3°F).Note: For most, swimming in 16.3°C (61.3°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Callao, Peru, the average length of the day in August is 11h and 44min.On the first day of the month, sunrise is at 06:26 and sunset at 18:02. On the last day of August, in Callao, sunrise is at 06:12 and sunset at 18:04 -05.
Sunshine
In Callao, the average sunshine in August is 9.9h.UV index
The months with the lowest UV index in Callao are May through November, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Callao, Peru
- Average high temperature in August: 19.8°C
The warmest month (with the highest average high temperature) is February (25.1°C).
The month with the lowest average high temperature is August (19.8°C).
- Average low temperature in August: 15.2°C
The month with the highest average low temperature is February (21.6°C).
The coldest month (with the lowest average low temperature) is August (15.2°C).
Average pressure in August
Callao, Peru
- Average pressure in August: 1016.3mbar
The month with the highest atmospheric pressure is August (1016.3mbar).
The month with the lowest atmospheric pressure is February (1013.6mbar).
Average wind speed in August
Callao, Peru
- Average wind speed in August: 13.8km/h
The windiest month (with the highest average wind speed) is July (14.2km/h).
The calmest month (with the lowest average wind speed) is February (11km/h).
Average humidity in August
Callao, Peru
- Average humidity in August: 77%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is August (77%).
Average rainfall in August
Callao, Peru
- Average rainfall in August: 2mm
The wettest months (with the highest rainfall) are February, March, June, July and August (2mm).
The driest months (with the least rainfall) are January, April, May, September, October, November and December (1mm).
Average rainfall days in August
Callao, Peru
- Average rainfall days in August: 2.1 days
The month with the highest number of rainy days is March (4.6 days).
The month with the least rainy days is November (0.5 days).
Average sea temperature in August
Callao, Peru
- Average sea temperature in August: 16.3°C
The best month for swimming (with the highest average sea temperature) is March (20.9°C).
The coldest month (with the lowest average sea temperature) is September (15.8°C).
Average daylight in August /
Average sunshine in August
Callao, Peru
- Average daylight in August: 11h and 42min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is October (Average sunshine: 11h and 54min).
The month with the least sunshine is June (Average sunshine: 7h and 24min).
Average sunshine days in August
Callao, Peru
- Average sunshine days in August: 19.2 days
The month with the most sunshine days is December (29.2 days).
The month with the least sunshine days is July (18 days).
Average UV index in August
Callao, Peru
- Average UV index in August: 5
The months with the highest UV index are January, February, March, April and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 5).
Average cloud cover in August
Callao, Peru
- Average cloud cover in August: 11
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in August
Callao, Peru
- 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).





