Does a Robot Mower Work in Rain?
TL;DR: It depends on the model and the rain intensity. Most robot mowers have IPX5 or IPX6 water resistance ratings, meaning they survive rain exposure.
It depends on the model and the rain intensity. Most robot mowers have IPX5 or IPX6 water resistance ratings, meaning they survive rain exposure. The UBHome M10 (IPX6) has a built-in rain sensor that pauses mowing in heavy downpours and resumes when conditions clear.
Light rain or morning dew will not damage the mower, but wet grass can cause clumping under the cutting deck and reduce cut quality. Best practice: let the rain sensor handle it. The mower knows when conditions are right.
| Rating | Protection Level | Real-World Meaning |
|---|---|---|
| IPX5 | Low-pressure water jets | Handles moderate rain, not submersion |
| IPX6 | High-pressure water jets | Handles heavy rain, storm-rated |
| IPX7 | Submersion to 1m | Survives puddles and flooding |
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