August weather forecastCaiar, Guinea-Bissau
August
Weather in August
August, the last month of the summer in Caiar, is another warm month, with an average temperature fluctuating between 29.9°C (85.8°F) and 23.8°C (74.8°F).Temperature
In Caiar, August is the coldest month, with temperatures averaging a high of 29.9°C (85.8°F) and a low of 23.8°C (74.8°F).Heat index
The heat index value during August is appraised at a fiery hot 39°C (102.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
August and September, with an average relative humidity of 85%, are the most humid months.Rainfall
The month with the most rainfall is August, when the rain falls for 25.7 days and typically aggregates up to 286mm (11.26") of precipitation.Daylight
The average length of the day in August in Caiar is 12h and 29min.On the first day of the month, sunrise is at 06:49 and sunset at 19:26. On the last day of August, in Caiar, Guinea-Bissau, sunrise is at 06:51 and sunset at 19:11 GMT.
Sunshine
With an average of 5.1h of sunshine, August has the least sunshine of the year.UV index
With an average maximum UV index of 6, August is the month with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during August translates into the following guidance:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Caiar, Guinea-Bissau
- Average high temperature in August: 29.9°C
The warmest month (with the highest average high temperature) is March (40.2°C).
The month with the lowest average high temperature is August (29.9°C).
- Average low temperature in August: 23.8°C
The month with the highest average low temperature is June (25.1°C).
The coldest month (with the lowest average low temperature) is February (18.5°C).
Average pressure in August
Caiar, Guinea-Bissau
- Average pressure in August: 1012.7mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is April (1010mbar).
Average wind speed in August
Caiar, Guinea-Bissau
- Average wind speed in August: 7.8km/h
The windiest month (with the highest average wind speed) is May (9.4km/h).
The calmest month (with the lowest average wind speed) is October (5.7km/h).
Average humidity in August
Caiar, Guinea-Bissau
- Average humidity in August: 85%
The months with the highest relative humidity are August and September (85%).
The month with the lowest relative humidity is January (32%).
Average rainfall in August
Caiar, Guinea-Bissau
- Average rainfall in August: 286mm
The wettest month (with the highest rainfall) is August (286mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in August
Caiar, Guinea-Bissau
- Average rainfall days in August: 25.7 days
The month with the highest number of rainy days is August (25.7 days).
The months with the least rainy days are January and February (0 days).
Average daylight in August /
Average sunshine in August
Caiar, Guinea-Bissau
- Average daylight in August: 12h and 30min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in August: 5h and 6min
The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 6min).
Average sunshine days in August
Caiar, Guinea-Bissau
- Average sunshine days in August: 4 days
The month with the most sunshine days is January (30.9 days).
The month with the least sunshine days is August (4 days).
Average UV index in August
Caiar, Guinea-Bissau
- Average UV index in August: 6
The months with the highest UV index are January, February, March, April, May, June, July, September, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 6).
Average cloud cover in August
Caiar, Guinea-Bissau
- Average cloud cover in August: 65
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is March (Cloud cover 7).
Average visibility in August
Caiar, Guinea-Bissau
- Average visibility in August: 8km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are August and September (8km).





