Security Cameras That Survive Cyclone Season: A Darwin Installer's Guide

Ingress protection ratings tell you two things — dust and water:

• IP66: dust-tight, and protected against powerful water jets. This is the sensible baseline for any exterior camera in Darwin. Wind-driven monsoon rain is functionally a water jet aimed at every seal on the housing.
• IP67: dust-tight, and survives temporary immersion. Worth specifying for low-mounted cameras, gate positions, and anywhere water sheets or pools during a monsoon burst.

Two caveats the spec sheet won't tell you. First, an IP rating describes the housing as manufactured — an installer who drills it for a cable gland and doesn't reseal it properly has voided the physics, whatever the sticker says. Second, ratings don't cover humidity cycling. A camera that breathes 85% humidity air all build-up, then chills overnight, will condense internally unless it has decent seals and a desiccant that gets replaced at service time. Fogged domes in November are the classic symptom — more on that in our wet season CCTV problems rundown.

The Top End is among the most lightning-active regions in Australia, and storm season is when we replace the most electronics. Direct strikes are rare; induced surges — a strike nearby pushing a spike down power or data lines — are routine.

A camera system is a chain of conductors running around your building, and it's only as protected as its worst point:

• Surge protection on the power side of the recorder and any PoE switch, not just a basic powerboard.
• Ethernet surge protectors on long exterior cable runs, particularly anything crossing between buildings or up a pole — those runs are antennas for induced spikes.
• Proper earthing of metal poles and brackets carrying cameras.
• A UPS on the recorder so brown-outs and the flickering supply during storms don't corrupt the recording database. A recorder that loses power mid-write can lose far more footage than the outage itself.

The pattern we see in storm-damage call-outs is almost always the same: the cameras survive, and the unprotected switch or recorder they all feed into is dead — taking the whole system with it.

The failure list from any Darwin wet season, ranked by frequency:

1. Condensation inside domes and lenses — humidity cycling through poorly sealed housings.
2. Power-side electronics — surges through unprotected supplies during lightning storms.
3. Corroded connections — water tracking into unsealed joins, accelerated by salt air.
4. Cable failures — UV-perished sheaths admitting water, or rodents in the roof space chewing runs during the build-up.
5. Mechanical failures — brackets and fixings working loose in repeated squalls.

None of these are exotic. All of them are specification and workmanship problems, which is why they cluster on systems installed to a southern template. Our cyclone season security page covers how we pre-season-check existing systems.