Solar panels correspond to considerable investment, preventing any risk of deterioration is therefore essential. It, therefore, seems logical to ask the question of the effect that climatic conditions can have on your panels. If you’re a little nervous when it’s hail or when thunder rolls, and you wonder if your installation will hold up, don’t panic. We have examined the impact of the weather on your photovoltaic panels in order to provide you with answers.


On cloudy days, your panels produce less energy because they receive less light. However, the impact this can have on the efficiency of your installation is often overestimated: light clouds do not deprive you of a large amount of energy. Even a cumulus turning gray will not prevent your panels from being effective, certainly a little less, but you will still get your money’s worth.

Of course, before investing, the question of the weather must be taken into account.

A little fog can also have a beneficial effect on your solar panels. Indeed, the latter works best when kept at low temperatures. Thanks to the cooling of the panels, the yield can be higher than at the end of a hot and sunny day.


You don’t have to worry about sandstorms, but it is obvious that the accumulation of dust on your solar panels can be harmful. If you are doing renovations at home, dust can quickly end up on your panels, which can significantly reduce the effectiveness of the aforementioned. However, don’t panic: in these cases, spray them with water with a garden hose, and you’re done.


Solar panel manufacturers know that they will not stay perfectly dry all year round. It is for this reason that the electrical components of your panels are protected against moisture: in the event of a shower, the water simply slides over them without causing any damage. A little mist can even be beneficial, as it cleans your panels of dust and dirt.

Snowfall, on the other hand, is less desirable, because the snow covering your installation deprives you of light. However, this is usually not a permanent situation, which shouldn’t make a big difference in terms of production. If you lack patience, nothing prevents you from clearing your panels off the snow encumbering them. However, be careful: climbing on a snowy roof is rarely a good idea.

As far as hail is concerned, it can indeed cause a lot of damage. But don’t worry, your panels are strong enough to withstand shocks. In addition, they protect your roof, which is more fragile and likely to be damaged by hailstorms. No reason to be afraid of potential hail damage


Never underestimate a storm. Uprooted trees, damaged roofs, projected earth residues… No one is immune. However, your panels are safe and need not fear the wrath of Mother Nature. Their weathered surface protects them from the wind, and if they were installed by a professional, they will have made sure to fix them securely so that they can withstand strong winds.

The same goes for the effects of lightning. Your installer will have taken care to properly connect your panels to the ground. If you are still skeptical, you can also have lightning protection installed on your roof. It may be worth it if you live in an area prone to lightning, in these cases, do not hesitate to ask a professional.


All in all, it can be said that weather conditions do not pose a great risk to your solar panels. Only a natural disaster could damage your panels, which in this case would probably be the least of your worries. The climatic conditions are the most favorable for the installation of solar panels and guarantee you a safe and profitable investment. If you are considering going green, consider comparing energy loans to carry out this project under the best conditions.