Łomża Weather & Climate: Best Time to Visit

In Łomża, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 25°C (77°F) in July to a very cold 1°C (34°F) in January.

Nighttime temperatures range from 14°C (57°F) in July to -5°C (23°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Łomża receives a reasonable amount of rain/snowfall, with an annual precipitation of 725 mm (29 in). The amount of precipitation varies moderately throughout the year. The wettest month, July, sees around 87 mm (3.4 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 46 mm (1.8 in) of rainfall. For more details, please visit our Łomża Precipitation page.

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

The average number of days each month with precipitation

In Łomża, summer days are longer and more sunny, with daily sunshine hours peaking at 7.9 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 0.7 hours per average 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 Łomża.

The city experiences its highest humidity in December, reaching 89%. In May, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year