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Sometimes it does seem like the weather might slow WiFi speeds. But can the weather really make your internet slow? It is certainly frustrating to be stuck inside trying to stream a movie and experiencing endless buffering. Or having your connection time out while you are in the middle of work. We’ll explain how rain, fog, smoke, and other weather conditions may or may not slow WiFi speeds.

Causes on Slow Internet

There are a few basics to understand before we dive in on whether or not weather conditions slow WiFi speeds. First is that WiFi is just a wireless version of your internet connection. This means that if WiFi is slow, but the wired internet connection is normal speed, you likely have another issue. Slow WiFi can be caused by aging routers, bad router locations, or too many devices using the internet at once. If you bypass your router and the speed is fine, one of those three issues is where you should start.

Second, the type of internet you have will determine what types of interference are possible. Cable internet (coaxial cable lines), fiber internet (fiber cable lines), and DSL internet (phone lines) are all “fixed-line” types of internet connections. Fixed wireless internet (Webformix), mobile wireless internet, and satellite internet signals travel through radio waves at different frequencies (2.4 GHz and 5 GHz mainly).

Third, if you have satellite internet weather will definitely slow your speeds. It can also knock out your connection entirely. All satellite internet is subject to weather interference, even if that bad weather is far away. Even new low-orbit satellite internet is known to stop working when it gets too hot. We aren’t going to talk about satellite internet because it is known to quit working in unfavorable weather. That is why it is a “last resort” type of internet connection.

Can Bad Weather Slow Down Your Internet?

While bad weather and slow internet speeds may show correlation, they do not show causation. Increased internet usage is one of the biggest causes of slow speeds during bad weather. More people are stuck inside at once, so more people are using the internet at once. That means there is less bandwidth to go around.

Does Rain Slow WiFi?

WiFi works mainly on the 2.4 GHz radiofrequency. This frequency can be partially absorbed by water droplets resulting in “signal attenuation.” However, WiFi is indoors with your router so it is not exposed to the rain. What is more likely is that your router is the culprit. The router may be too far away from you or need replacing. This does mean that outdoor public WiFi could experience signal attenuation and slow down, but not inside your home.

Rain fade can be an issue with wireless internet. It happens when moisture in the air reduces signal strength. The frequency of the signal matters, not all signals have a frequency that is susceptible to rain fade. The 11 GHz and higher frequencies used to transmit the connection from tower to tower can experience rain-fade. However, the signal that connects clients to the tower is not usually affected.

If you have cable internet, rain can soak signal amplifiers and cause speed loss. Physical water leaks and cable damage are also possible with DSL internet connections. These are not very common issues, but they are possibilities to be aware of if you live in an area with older infrastructure. Of course, physical equipment damage from extreme weather can also take out internet service of any type.

Does Fog Slow WiFi?

Fog does not slow WiFi speeds. Fog is a weather condition that can create rain fade, but it will not slow your home internet speeds.

Does Smoke Slow WiFi?

Smoke does not slow WiFi speeds unless it is leaving particles like dust and debris in your router. In Central Oregon and Southern Oregon, we do see hazy days during fire season. They have no impact on internet speeds for cable internet, fiber internet, DSL internet, or wireless internet. Again, the more likely issue is the router or the increased number of people indoors using the internet.

Does Snow Slow WiFi?

Changes in temperature from cold to warm cause the ground to expand and contract. Cold also makes the metal in cables more susceptible to damage. It is possible, but not common, for cold to damage internet cables. Depending on the damage, that could slow WiFi speeds. However, copper and fiber optic cables are not vulnerable to the cold. Snow could cause slow WiFi if there is moisture where wires connect or metal wire degradation. More likely, there are just more people online leaving everyone with less bandwidth to go around.

What to do if Your Internet is Slow

Along with these six troubleshooting steps, you should also call your internet service provider if your internet is consistently slow. Be aware that the weather is the least likely issue! More often the problem is increased internet traffic in the area or issues with your router or cables.

  1. Minimize the number of devices connected to the internet
  2. Reset your router (and modem if you have one, Webformix clients do not)
  3. Bypass your router to see if it is creating problems
  4. Change the position of your router or get a WiFi extender if distance is causing signal loss
  5. Make sure outdoor connections are secure and sealed
  6. Check your ethernet cable (or other connection cable type) for damage
Sabine Downer

Sabine Downer

Sabine Downer is the Webformix Marketing Specialist that is responsible for our online content such as blogs, ads, internet promotions, and social media engagement.