Istán Weather & Climate: Best Time to Visit

The climate in Istán is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 15°C (59°F).

At night, temperatures range from around 20°C (68°F) in August to 8°C (46°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Istán receives mid-range precipitation levels, with 673 mm (26 in) annually. Istán can be quite wet during December, receiving approximately 109 mm (4.3 in) of precipitation over 13 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 1.9 mm (0.1 in) of precipitation spread across 2 rainy days. For more details, please visit our Istán Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Istán can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Istán.

The city experiences its highest humidity in November, reaching 72%. In June, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year