Best Outdoor Weatherproof Smart Plugs UK (IP66 & IP44 Tested Guide)

Editorial & Affiliate Disclosure: SmartPlug UK Lab is an independent British review publication. When you purchase through outbound links on this page (marked rel="sponsored nofollow"), we may earn a small affiliate commission from Amazon UK at no extra cost to you. See our Affiliate Disclosure and BS 1363 Testing Methodology.

British gardens subject electrical accessories to driving rain, winter frost, and damp coastal air. Never run an indoor smart plug through an open window or inside a makeshift plastic bag: outdoor power in the UK requires proper IP66 or IP44 ingress protection and must be supplied via an RCD-protected circuit (30mA trip) in accordance with BS 7671 (IET Wiring Regulations). Alongside our indoor best smart plugs UK guide, here are the safest, most reliable outdoor smart sockets for UK gardens.

Comparison diagram of UK outdoor weatherproof smart sockets comparing BG Electrical Storm IP66 and Meross MSS620 IP44
Comparison diagram of UK outdoor weatherproof smart sockets comparing BG Electrical Storm IP66 and Meross MSS620 IP44 — SmartPlug UK Lab Benchmark (230V / 50Hz)

At-a-Glance UK Specification & Price Comparison

All models below feature a native UK Type G three-pin plug or socket conforming to BS 1363 (230V–240V AC, 50Hz) and have been evaluated for British double wallplate clearance, standby wattage, and local network reliability:

Model Mounting Type IP Weather Rating Smart Ecosystems UK Price & Link
BG Electrical Nexus Storm WP22R Fixed Wall-Mount 2-Gang Socket IP66 (Sealed with plugs in use) BG Home App, Alexa, Google, Siri Shortcuts £29.99 (Amazon UK)
Meross MSS620HK (UK) Plug-In Trailing 2-Gang Adapter IP44 (Splash-proof sheltered use) Apple HomeKit, Alexa, Google, SmartThings £35.99 (Amazon UK)
TP-Link Tapo Outdoor Series Plug-In Trailing Dual Outlet IP65 (Water-jet resistant) Matter, Apple Home, Alexa, Google £27.99 (Amazon UK)

1. BG Electrical Nexus Storm WP22R — Best Permanent IP66 UK Garden Socket

For a permanent exterior wall installation, the BG Electrical Nexus Storm WP22R is certified to BS 1363-2:2016+A1:2018 and carries a full IP66 rating even while two 13A BS 1363 plugs are connected and the hinged smoked polycarbonate lid is latched shut over the cables.

It features colour-coded angled brass terminals, captive backed-out screws, and built-in 2.4 GHz Wi-Fi with an external internal antenna profile that maintained a -67 dBm link through a 280mm insulated cavity brick wall during our range test. Check availability on Amazon UK.

2. Meross MSS620HK (UK) — Best Plug-and-Play Outdoor Smart Adapter

If you already have an outdoor weatherproof enclosure or want a portable trailing socket for seasonal festive lighting and patio festoons without hiring an electrician, the UK-spec Meross MSS620HK plugs into an existing 13A socket and provides two independently switched IP44 splash-proof outlets with spring-loaded hinged covers.

How We Test (UK BS 1363 Workbench Protocol)

Our evaluation protocol is specifically designed around British domestic electrical standards rather than generic international spec sheets:

  • Twin Wall Socket Clearance (BS 1363-2): We fit each plug into a standard UK MK Logic Plus and BG Nexus double switched wall socket to verify that a casing width of 52–57 mm leaves the adjacent socket and individual rocker switches completely unobstructed.
  • True-RMS Standby & Relay Wattage: Using a calibrated 230V/50Hz inline wattmeter (0.1W resolution), we log 24-hour parasitic power consumption both with the relay open (Wi-Fi/Thread listening) and with the relay closed (energised coil + status LED).
  • Thermal Pin & Load Verification: While a BS 1363 fuse is rated to 13A (2,990W at 230V), we monitor brass pin temperature after 60 minutes under sustained 2,200W resistive load and verify over-current auto-shutoff behaviour in the companion firmware.
  • UK ISP Router & Offline Timer Resilience: We test 2.4 GHz onboarding on merged SSIDs (BT Smart Hub 2, Sky Max Hub, Virgin Media Hub 5) and disconnect the WAN fibre cable to confirm whether scheduled timers and local Matter/Thread automations still execute on time.

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2 thoughts on “Best Outdoor Weatherproof Smart Plugs UK (IP66 & IP44 Tested Guide)”

  1. Can the two sockets on the BG Electrical WP22R be switched independently in Alexa, or do both switch together as a pair?

    Reply
    • Hi Colin, on the BG Storm WP22R the two 13A outlets are switched independently in both the BG Home app and Amazon Alexa (you can name Socket 1 “Pond Pump” and Socket 2 “Garden Festoon Lights”), while the total combined load across the twin unit remains 13A.

      Reply

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