Sunlight Hours in Longueuil

Longueuil receives an average of 12.1 hours of daylight per day. This varies throughout the year, from 8.6 hours on the shortest day to 15.6 hours on the longest day.

During winter solstice, the sun reaches a maximum altitude of only 21.0° above the horizon at solar noon in Longueuil. This creates shadows that are 2.6x the height of objects.

April through September offers the longest days and highest sun angles in the Northern Hemisphere.

South-facing gardens receive the most consistent sunlight year-round in Longueuil. Consider shadow patterns from neighboring structures when planning outdoor spaces.

In March, golden hour in Longueuil occurs in the morning from 07:09 - 08:09 and in the evening from 17:56 - 18:56. These times shift throughout the year as sunrise and sunset times change.

The UV index in Longueuil varies by season. During summer, UV can reach 11 (very high), while winter UV levels are much lower. Always check daily UV forecasts and wear SPF 30+ sunscreen during peak hours (10am-4pm).

Longueuil receives approximately 1,680 hours of sunshine annually. This makes it a good location for solar panels, with typical payback periods of 5-10 years. For optimal performance, orient panels south at a 46° tilt angle.

In March, sunrise in Longueuil is around 07:09 and sunset is around 18:56, giving 11.8 hours of daylight. The earliest sunrise occurs around the summer solstice (05:09) and latest sunset follows shortly after.

For optimal daylight and outdoor conditions in Longueuil, April through September offers the longest days and highest sun angles in the Northern Hemisphere. The shoulder seasons often offer a good balance of pleasant weather and fewer crowds.

Shadow length varies dramatically by season in Longueuil. At summer noon, shadows are only 0.4x the height of objects (sun at 68°). In winter, shadows extend to 2.6x object height (sun at just 21°).