Independent comparisons. We may earn from shop links. More info

Upload a weather station to Met Office WOW

Updated: October 2026

The console wants a site ID and a PIN, you have pressed save, and the map is still empty. That is how an upload weather station to Met Office WOW attempt usually fails. WOW is where you choose to publish. It is not the public forecast, and the manufacturer does not send the PIN. The Products Compared editorial team checked the WOW help pages on 15 October 2026, with no laboratory test. A qualifying purchase through our links can earn a commission at no extra cost to you. Which box can send anywhere is on the [Wi-Fi weather station comparison](/hub/climate-measuring/wifi-weather-station).

The console wants a site ID and a PIN, you have pressed save, and the map is still empty. That is how an upload weather station to Met Office WOW attempt usually fails. WOW is where you choose to publish.

Our top picks

Ecowitt Ecowitt WS2910

Best overall

Ecowitt Ecowitt WS2910
8.6/10about £134.99
View offer
Ecowitt Ecowitt WS3901

Alternative

Ecowitt Ecowitt WS3901
7.6/10about £219.00
View offer
Ambient Weather Ambient Weather WS-1965

Best value

Ambient Weather Ambient Weather WS-1965
8.2/10about £119.99
View offer
On this page
  1. 1.What WOW is, and which stations can send to it
  2. 2.Site ID and the PIN you choose
  3. 3.Which address you send to
  4. 4.What other people can see

What WOW is, and which stations can send to it

On the Met Office help pages, WOW stores readings a private station sends in. Joining does not make the garden an official observing site, and it does not replace the forecast. Only the Ecowitt WS2910 and the Ecowitt WS3901 name WOW in the bullets. If yours is not one of those two, stop before you invent a PIN the menu does not have. The Raddy, both ACCUR8 sets, and both Ambient listings do not name WOW. The Chatthen names Smart Life or Tuya. A custom server is not a hidden WOW switch. Whether the box can upload is on the Wi-Fi weather station buying guide. Why those Ecowitt bullets name WOW is on the Ecowitt vs Ambient weather station page.

Site ID and the PIN you choose

The Met Office data-format page asks for two values from different places. The Site ID is the identifier on the site page you create in WOW. You do not invent it, and you do not copy it from the station manual. The PIN is six digits, you choose it, and the help text calls it an AWS PIN. The manage-a-site page says the manufacturer does not supply the PIN. Write the six digits down before they go into the console. A mismatch looks like a dead station: the console says it sent the packet, and the site page stays empty. A correct PIN on the wrong host still fails.
Ecowitt Ecowitt WS2910

Testsieger

Ecowitt Ecowitt WS2910
8.6/10about £134.99
View offer

Which address you send to

On 15 October 2026 the Met Office help pages still described an upload toward wow.metoffice.gov.uk/automaticreading. That is not a claim that WOW has closed. Follow the help page of the service you joined. WOW-BE, the FAQ at wow.meteo.be, uses a new short station ID and a key you choose. The host is wow.meteo.be and the path is /api/v2/send. The old Met Office PIN is not the new login, and history is not transferred. If your account has moved, the old six-digit PIN will not sign the new service in. Update the server fields, then wait one reporting interval before you change the PIN again.

What other people can see

A successful upload puts a pin on a public map. The manage-a-site page lets you untick Allow data download. Untick it if you will not let someone pull the series down. The tick does not hide the station. A precise home location is the detail people regret, not the six digits. Say if the site is poor. A sheltered patio can still send. What fails is a reader who treats that patio wind as an open mast. If the array is not level, use the how to set up a Wi-Fi weather station page, then describe what you mounted.

Common questions

What two numbers does WOW ask for?
A Site ID and a six-digit PIN. The Site ID comes from the site page you create. The PIN, also called an AWS PIN on the Met Office data-format page, is a number you invent. In this set you type both into the WS2910 or the WS3901, the listings that name WOW. On 15 October 2026 the Met Office pages still aimed the upload at wow.metoffice.gov.uk/automaticreading. A move to WOW-BE needs the new station ID and key.
Does the weather station maker send the PIN?
No. The manage-a-site page says the manufacturer does not supply the PIN. You choose the six digits when you create the site, then copy them into a console that already has WOW fields. A leaflet that never mentions WOW will not hide a PIN. If the console has no WOW line, there is nowhere honest to put one.
Is my station then an official Met Office site?
No. WOW is where you choose to publish a private station. It is not the public forecast, and a site page does not make the garden an official Met Office observation. The map shows a contributed pin, only as good as the exposure you described. Call it your station on WOW.
What if the console only offers Weather Underground?
Leave WOW alone. The Raddy MN6 and both ACCUR8 listings name Weather Underground and WeatherCloud. The Ambient listings name the Ambient Weather network. None of those bullets name WOW. Use the station ID that named service gives you. The Chatthen listing is further away: Smart Life or Tuya, with no WOW field to fill.
Has the upload address changed?
It depends which service you joined. On 15 October 2026 the Met Office help still described wow.metoffice.gov.uk/automaticreading. WOW-BE uses wow.meteo.be and the path /api/v2/send, with a new short station ID and a key you choose. The old PIN is not the new login, and history is not transferred. The Met Office pages did not say WOW had closed. Use the help page for the account you hold.

Related pages

Weather station

Wi-Fi weather station

Best Wi-Fi weather station: the 868 MHz screen pick

Wi-Fi weather station buying guide: suite and radio

Ecowitt vs Ambient weather station: 868 or 915 MHz

How to set up a Wi-Fi weather station before the roof

Sources

Public UK sources used for this comparison. Listing prices, stars, and review counts are from amazon.co.uk on 15 October 2026.

  1. amazon.co.uk listings for the nine kept ASINs (retrieved 15 October 2026)
  2. Weather Spares — Ecowitt WS2910 Wi-Fi weather station (retrieved 15 October 2026)
  3. Ecowitt — how to choose the radio frequency (retrieved 15 October 2026)
  4. Royal Meteorological Society — automatic weather station guide (retrieved 15 October 2026)
  5. Met Office WOW — manage a site (retrieved 15 October 2026)
  6. Ofcom — short-range devices (retrieved 15 October 2026)
  7. Wireless Telegraphy (Exemption) Regulations 2021, regulation 4 (retrieved 15 October 2026)
  8. Electrical Equipment (Safety) Regulations 2016, regulation 35 (retrieved 15 October 2026)