May Weather in San Juan Ostuncalco

Last updated: March 2, 2024

The weather in San Juan Ostuncalco, Guatemala, during May is characterized by an average temperature of 21°C (70°F). Highs can soar to 27°C (82°F), while lows may dip to 16°C (62°F). Typically, the humidity level in San Juan Ostuncalco throughout May hovers around 65%.

16°C (62°F)

Minimum temperature

21°C (70°F)

Average temperature

27°C (82°F)

Maximum temperature

65%

Humidity

Precipitation and Sunshine hours

In May, San Juan Ostuncalco averages 702 mm (27.6 inches) of rainfall, typically over the course of 31 rainy days. The month enjoys an average of 12 hours 48 minutes of daylight, with the sun shining for approximately 9 hours 48 minutes each day. Additionally, there is a 20% probability of sunny days during this period.

702 mm (27.6 inches)

Precipitation

31 rainy days

Rainy days

9 hours 48 minutes

Sunshine hours

20%

Chance of sun

UV Index

In May, the UV Index in San Juan Ostuncalco reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	2	4	7	11	14	14	13	10	7	3	1	1	0
Exposure	Low	Moderate	High	Extreme				VeryHigh	High	Moderate	Low
Time to burn	45 min	30 min	25 min	10 min				15 min	25 min	30 min	45 min