January weather forecast
Antigua Guatemala, Guatemala

The climate transition from December to January in Antigua Guatemala is almost imperceptible with mild alterations in weather conditions. January ushers in the year with an aggregated rainfall of 1mm (0.04"), making it the driest month on the calendar. The dry phase extends to both daytime and nighttime temperatures, maintaining a reasonable balance. Sunshine dominates the atmosphere for much of the day, with a predictable daylight schedule ensuring the UV index remains high throughout the month. Consequently, January is an ideal time for outdoor pursuits, despite the risk of UV radiation exposure.

Temperature

As Antigua Guatemala welcomes January, the average high-temperature records at a still agreeable 22.5°C (72.5°F), marking an insignificant deviation from the prior month. Throughout January nights, Antigua Guatemala registers an average low-temperature of 10.8°C (51.4°F).

Rainfall

The month with the least rainfall is January, when the rain falls for 8 days and typically collects 1mm (0.04") of precipitation.

Daylight

In Antigua Guatemala, the average length of the day in January is 11h and 23min.
On the first day of January, sunrise is at 06:27 and sunset at 17:44. On the last day of the month, sunrise is at 06:31 and sunset at 18:01 CST.

Sunshine

The months with the most sunshine are January through May and December, with an average of 8h of sunshine.

UV index

In Antigua Guatemala, the average daily maximum UV index in January is 10. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the UV index of 10 transforms into the following advice:
Taking safety measures is non-negotiable; skin and eyes can be swiftly affected if neglected. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.