When Do Spiders Lay Eggs? – When Do They Hatch?

Answer: Female spiders lay their eggs during the late summer and early fall.

The optimal time for egg-laying is from August to November in the northern hemisphere and March to July in the southern hemisphere, due to the availability of more insect prey for spiderlings. This coincides with a long period of high temperatures (near or above 25°C), reduced risk of irritation from rain, and (due to photoperiodism) low natural light.

Depending on the species of spiders and the climate they’re living in, their egg-laying seasonality could differ slightly. That being said, you’ll generally see an uptick in spiders after their hatching season in late summer through early fall.

Where Do Spiders Go To Lay Their Eggs?:

Spiders go to lay their eggs inside burrows — though they can often be found in the ground or hidden up high in trees or bushes. They look for the perfect place for spiders to hide their eggs from the weather as well as predators. Their burrows are extremely important to keep their eggs safe and give their babies a chance to grow strong enough to venture on their own.

when do spiders lay their eggs

Most times these burrows will be difficult to find, but if a spider chooses your home or garage as a burrow then you’ll need to be sure you fully locate it and remove it before you have hundreds of spiders running around your home!

How Many Eggs Do Spiders Lay At A Time?:

Depending on the species of spiders the number of eggs laid at a time can vary quite a bit. Generally speaking, spiders can lay anywhere from 1 egg at a time all the way up to over 1000 eggs. Most spiders use similar methods of laying eggs by creating an egg sac and protecting it with a silk blanket to help keep them safe until they’re large enough to fend themselves.

How Long Do Spiders Take To Hatch?:

It will usually take between one to two months for a spider to form from an egg sac called the urn.

However, the length of time left until hatching can vary and will depend on environmental factors such as temperature, humidity, and air quality. Heat typically speeds up the process while cooler temperatures generally slow down how quickly spiders hatch out of their eggs. In fact, more research has shown that it takes much less time for spiders to hatch in conditions that mimic those found at higher elevations or close to streams or bodies of water for instance. This is because near water there is high humidity which translates into fewer open spaces (less space means less moisture lost due to evaporation) among other factors affecting relative humidity levels.

How To Keep Spiders From Laying Eggs In Your Home:

  • Eliminate all areas where spiders might harbor or nest.
  • Properly dispose of any old boxes, newspapers, and similar materials which could be potential homes for spiders looking to lay their eggs.
  • Spray insecticide spray from a paint brush on the corners where baseboards meet walls in your house. Pay special attention to dark corners and under appliances that have been visited by spiders before. Note that this is an area where you will have to reapply every 4-8 weeks (usually once per month).

Although some spiders aren’t much of a worry, Brown Recluse Spiders are dangerous and should be taken care of immediately!

Final Thoughts On Spiders Breeding Cycle:

As mentioned earlier, spiders generally lay their eggs between Late Summer and Early Fall. Depending on the species of spiders and the climate they live in, this could fluctuate slightly. But generally speaking, you’ll see an uptick in spiders after this time period.