The climate in Sierpc during July can be summarized as warm and a little damp.
July is in the summer in Sierpc and is typically the warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 13°C (55°F) is normal.
| Daytime temperature | 23.3°C 73.9°F | 
|---|---|
| Nightly temperature | 12.9°C 55.2°F | 
| Average temperature | 18.1°C 64.6°F | 
| Daily sunshine | 8 hrs | 
| Avg rainfall | 80 mm 3.1 ins | 
| Rainy days | 14 days | 
| Sea temperature | 18.3°C 65°F | 
| Humidity | 74% | 
| Windspeed | 10.4kph 7 mph | 
On average July is the wettest month of the year in Sierpc with around 80mm 3.1 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
				
						
						The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sierpc in July 2025.
| Hottest month: | July | 23.1°C 73.6°F | 
|---|---|---|
| Driest month: | February | 26mm 1ins | 
| Sunniest month: | August | 7.5hrs | 
| Coldest month: | January | -2.5°C 27.5°F | 
| Wettest month: | July | 80mm 3.1ins |