Weather in Guatemala City in August 2025
Average weather
Average temperature in Guatemala City in August
Going from a maximum of +29°C during the day to a minimum of +15°C during the night, the temperature in August averages around +27°C.
The average maximum temperature goes up 14% by the end of the month, compared with the beginning of the month, from +26°C to +28°C.
Is Guatemala City warm or cold in August?
Guatemala City is typically warm in August.
Maximum temperatures go up compared to the previous month from +25°C to +26°C. The minimum temperature also goes up from +15°C to +15°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in Guatemala City, here is the comparison with other months:
Climate in Guatemala City in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +25°C | +26°C | +25°C | ||||
| Min. temperature | ||||||
| +12°C | +12°C | +12°C | ||||
| Max. temperature | ||||||
| +30°C | +30°C | +30°C | ||||
| Rainfall | ||||||
| 60 mm | 69 mm | 123 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 2 m/s | ||||
| Humidity | ||||||
| 72% | 72% | 76% | ||||
| Air pressure | ||||||
| 1015 HPa | 1014 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 7 | 6 | 3 | ||||
| Rainy days | ||||||
| 16 | 18 | 21 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +25°C to +26°C during the day. Prepare for more rain. Average rainfall goes from 60 mm to 69 mm. Humidity levels don’t change as the month goes on, averaging around 72%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Guatemala City is gradually decreasing during August, going from 5 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Guatemala City?
Climate Change over Years
The climate in Guatemala City in August has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+24°C) and the highest in 2019 (+27°C). The driest year was 1986 with only 265 mm of rainfall, and the wettest year was 2022 with 1213 mm.
FAQ
Is August a good time to visit Guatemala City?
Can you sunbathe in Guatemala City in August?
Is Guatemala City rainy in August?
Is it sunny in Guatemala City in August?
Monthly weather in Guatemala City
Source of the data
For this page, we’ve looked at the typical weather in Guatemala City, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.