July Weather in Lagny-le-Sec, France

Last updated: August 23, 2025

In Lagny-le-Sec, France, the average temperature in July hovers around 20°C (69°F). However, be prepared for a wide range, as temperatures can dip to a chilly 9°C (48°F) and soar up to a scorching 42°C (108°F). With 53 mm (2.1 in) of precipitation spread over 8 days, you might encounter some rainy spells. Additionally, expect a humidity level of 80%, making the air feel quite moist during your stay!

July Temperature in Lagny-le-Sec

In July in Lagny-le-Sec, the average temperature is 20°C (69°F). The maximum can reach 42°C (108°F) and the minimum can be as low as 9°C (48°F). This climate makes Lagny-le-Sec an ideal destination for travelers looking to enjoy a range of outdoor activities.

July Weather in Lagny-le-Sec: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Lagny-le-Sec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lagny-le-Sec, July typically has an average temperature of 20°C (69°F), with highs reaching up to 42°C (108°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for Lagny-le-Sec generated using information from the Copernicus Climate Change Service.

July Precipitation in Lagny-le-Sec

In Lagny-le-Sec in July, the total precipitation amount is 53 mm (2.1 in) over the course of 8 days.

July Precipitation Trends in Lagny-le-Sec

The chart displays monthly precipitation patterns in Lagny-le-Sec, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Lagny-le-Sec, July typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Lagny-le-Sec

In Lagny-le-Sec in July, humidity is 80%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket enveloping you, making every step slightly more challenging as you navigate the air that clings to your skin, often leaving you longing for a cool breeze while exploring the sights.

July Average Humidity in Lagny-le-Sec

This chart illustrates the average monthly humidity levels in Lagny-le-Sec, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Lagny-le-Sec is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Lagny-le-Sec

In Lagny-le-Sec in July, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Lagny-le-Sec.

Maximum UV Index Levels in Lagny-le-Sec for July

The chart shows the monthly maximum UV Index (UVI) for Lagny-le-Sec in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Lagny-le-Sec typically reaches 8, which falls under the very high exposure category.

Data source: Lagny-le-Sec July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How July Weather in Lagny-le-Sec Compares to Other Months

Weather in Lagny-le-Sec varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Lagny-le-Sec, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lagny-le-Sec, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	64 mm (2.5 inches)	91%	low
February Weather	6°C (43°F)	73 mm (2.9 inches)	89%	moderate
March Weather	8°C (47°F)	76 mm (3.0 inches)	86%	moderate
April Weather	11°C (52°F)	33 mm (1.3 inches)	84%	high
May Weather	14°C (58°F)	68 mm (2.7 inches)	82%	very high
June Weather	19°C (66°F)	64 mm (2.5 inches)	82%	very high
July Weather	20°C (69°F)	53 mm (2.1 inches)	80%	very high
August Weather	20°C (68°F)	61 mm (2.4 inches)	76%	high
September Weather	17°C (62°F)	48 mm (1.9 inches)	81%	high
October Weather	13°C (55°F)	82 mm (3.2 inches)	88%	moderate
November Weather	8°C (46°F)	69 mm (2.7 inches)	92%	low
December Weather	6°C (43°F)	112 mm (4.4 inches)	93%	low