RainViewer on new websites

1. RainViewer appeared on about 34 new sites in the last 30 days.^[1]
2. Half of new RainViewer sites also use Open-Meteo.

The line is the 7-day average share of new sites that use RainViewer, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Open-Meteo	<0.1%	73.1%
2	–	Windy	<0.1%	12.4%
3	–	RainViewer	<0.1%	5.0%
4	▼6	wttr.in	<0.1%	1.1%
5	▼13	WeatherAPI	<0.1%	1.0%

All-time shares across the new sites we track: of all of them, and of the sites using any Weather tool. RainViewer is typically used alongside Open-Meteo rather than instead of it. All 98 in Weather

Tool	Sites with both	vs all new sites	Bar
Open-Meteo	66	1631x
ArcGIS	43	1268x
CARTO	41	751x
OpenStreetMap	63	170x

Tools that turn up far more often on RainViewer sites than on new sites in general, and how many times as common each one is there.

87 of the 129 sites using RainViewer are product launches we list individually. The other 42 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
Stillwater stillwaterfishing.app · China	Oct 19
Ranch Dock — Ranch Management Made Simple ranchdock.com · Productivity	Oct 19
Boat Trip — plan your day at sea in a minute boattripplanner.com	Oct 18
Oblakomer oblakomer.app	Oct 17
inLecco inlecco.com	Oct 14
Hydrolens hydrolens.org	Oct 10
Gary’s Weather App garywa.com	Oct 10
BTBU 气象栈 · 全球天气工作台 btbuweather.com	Oct 6
Éire Weather eireweather.com · Ireland	Oct 5
Kalnu — Coaching sportif & analyse d'entraînement kalnu.fr · France	Oct 3
ดูภัย doophai.com	Oct 3
VIGÍA Europa — Live monitor: threats, aviation and weather vigiaeurope.com	Oct 2

Showing the most recent 12 of 87.

Watches, exports and the API give you all 129 sites using RainViewer, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.