August weather forecastSan Mateo, Guatemala
August
Weather in August
The last month of the summer, August, is another pleasant month in San Mateo, Guatemala, with temperature in the range of an average high of 21.9°C (71.4°F) and an average low of 13.1°C (55.6°F).Temperature
San Mateo observes a minor difference in average high-temperatures between July's 21.8°C (71.2°F) and August's 21.9°C (71.4°F). August's nights observe an average temperature of 13.1°C (55.6°F).Humidity
The average relative humidity in August is 83%.Rainfall
In San Mateo, in August, it is raining for 28 days, with typically 267mm (10.51") of accumulated precipitation. In San Mateo, during the entire year, the rain falls for 263.6 days and collects up to 2061mm (81.14") of precipitation.Daylight
In San Mateo, the average length of the day in August is 12h and 37min.On the first day of August, sunrise is at 05:49 and sunset at 18:35. On the last day of the month, sunrise is at 05:54 and sunset at 18:18 CST.
Sunshine
The average sunshine in August is 9.9h.UV index
The months with the highest UV index in San Mateo, Guatemala, are January through October and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during August translates into the following directions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
San Mateo, Guatemala
- Average high temperature in August: 21.9°C
The warmest month (with the highest average high temperature) is April (23.8°C).
The month with the lowest average high temperature is October (20.7°C).
- Average low temperature in August: 13.1°C
The month with the highest average low temperature is May (14.3°C).
The coldest month (with the lowest average low temperature) is January (10.2°C).
Average pressure in August
San Mateo, Guatemala
- Average pressure in August: 1013.3mbar
The month with the highest atmospheric pressure is January (1015.3mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).
Average wind speed in August
San Mateo, Guatemala
- Average wind speed in August: 5.1km/h
The windiest month (with the highest average wind speed) is January (6.1km/h).
The calmest month (with the lowest average wind speed) is May (4.1km/h).
Average humidity in August
San Mateo, Guatemala
- Average humidity in August: 83%
The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is March (69%).
Average rainfall in August
San Mateo, Guatemala
- Average rainfall in August: 267mm
The wettest month (with the highest rainfall) is May (372mm).
The driest month (with the least rainfall) is January (14mm).
Average rainfall days in August
San Mateo, Guatemala
- Average rainfall days in August: 28 days
The months with the highest number of rainy days are June and October (29.2 days).
The month with the least rainy days is February (10.8 days).
Average daylight in August /
Average sunshine in August
San Mateo, Guatemala
- Average daylight in August: 12h and 36min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is April (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in August
San Mateo, Guatemala
- Average sunshine days in August: 1.9 days
The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is October (0.5 days).
Average UV index in August
San Mateo, Guatemala
- Average UV index in August: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 5).
The month with the lowest UV index is November (UV index 4).
Average cloud cover in August
San Mateo, Guatemala
- Average cloud cover in August: 42
The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 19).
Average visibility in August
San Mateo, Guatemala
- Average visibility in August: 8km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are May, June, August, September and October (8km).





