September weather forecast
Antigua Guatemala, Guatemala

September is characterized by another surge in rainfall in Antigua Guatemala, with quantities touching 220mm, marking the highest recorded for the latter part of the year. There is a marginal decrease in temperatures that barely impacts the warmth of the city environment. Daylight and sunshine hours closely shadow each other, bringing an appealing uniformity to the daily schedule. The UV index declines slightly from the high range, but sun protection remains as important as ever.

Temperature

September's commencement in Antigua Guatemala is accompanied by an average high-temperature of a still moderately hot 23.1°C, diverging marginally from August's 23.8°C. Antigua Guatemala records an average low of 14.4°C throughout the nights in September.

Rainfall

In Antigua Guatemala, in September, it is raining for 26 days, with typically 220mm of accumulated precipitation. In Antigua Guatemala, during the entire year, the rain falls for 190 days and collects up to 1065mm of precipitation.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:50 and sunset at 18:15. On the last day of September, in Antigua Guatemala, sunrise is at 05:52 and sunset at 17:53 CST.

Sunshine

The months with the least sunshine are September and October, with an average of 6h of sunshine.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 12 in September translates into this advice:
Enforce all necessary precautions, unprotected skin might burn swiftly. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.