Brandwave

How popular isOpen-Meteo?

In September 2026, people searched for Open-Meteo by name about 41,200 times worldwide, a 75.3% increase from the previous year. These searches made up 0.66% of all global weather API searches, placing Open-Meteo second out of six APIs. When we asked both ChatGPT and Google AI Overviews about weather APIs, Open-Meteo appeared in all answers and was the most recommended of the six.

Search and AI answers in September 2026

Open-Meteo is the second most searched of 6 competitors and the most recommended in AI answers.

  1. AccuWeatherShare of searches 98.4%Mentioned in 1 of 5 AI answersPlace in AI recommendations 6th
  2. Open-MeteoShare of searches 0.66%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
  3. WeatherAPIShare of searches 0.44%Mentioned in 4 of 5 AI answersPlace in AI recommendations 2nd
  4. OpenWeatherShare of searches 0.36%Mentioned in 3 of 5 AI answersPlace in AI recommendations 3rd
  5. Tomorrow.ioShare of searches 0.07%Mentioned in 4 of 5 AI answersPlace in AI recommendations 4th

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Top weather APIs in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Open-Meteo appeared in all five answers. Open-Meteo is the most recommended of the six.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Open-Meteo1st
  2. WeatherAPI2nd
  3. OpenWeather3rd
  4. Tomorrow.io4th
  5. Visual Crossing5th
  6. AccuWeather6th

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Open-Meteo5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • WeatherAPI4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Tomorrow.io4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Visual Crossing4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • OpenWeather3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • AccuWeather1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers

See every answer about weather APIs

5 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 19, 2026.

Which weather APIs compete with Open-Meteo?

Open-Meteo against weather APIs worldwide, by month

Share of searches by month for AccuWeather, Open-Meteo. The figures are in the table below the chart.

View monthly share of searches table
MonthAccuWeatherOpen-MeteoWeatherAPIOpenWeatherTomorrow.ioVisual Crossing
Oct 202598.4%0.38%0.65%0.44%0.05%0.05%
Nov 202598%0.54%0.79%0.53%0.07%0.06%
Dec 202598.6%0.36%0.53%0.44%0.06%0.04%
Jan 202698.9%0.3%0.44%0.29%0.04%0.04%
Feb 202698%0.64%0.65%0.53%0.11%0.06%
Mar 202698.1%0.64%0.65%0.53%0.07%0.05%
Apr 202698.2%0.66%0.53%0.53%0.06%0.05%
May 202698.5%0.54%0.44%0.44%0.06%0.04%
Jun 202698.6%0.54%0.44%0.36%0.05%0.03%
Jul 202698.6%0.52%0.44%0.36%0.04%0.03%
Aug 202698.7%0.52%0.36%0.36%0.04%0.03%
Sep 202698.4%0.66%0.44%0.36%0.07%0.04%

  1. 1.AccuWeather

    98.4%

    Held 1st. 6.1M estimated branded searches, -18.2% vs prior month. Share -0.3 points.

  2. 2.Open-Meteo

    0.66%

    Held 2nd. 41.2K estimated branded searches, +3.8% vs prior month. Share +0.1 points.

  3. 3.WeatherAPI

    0.44%

    Moved from 4th to 3rd. 27.1K estimated branded searches, 0% vs prior month. Share +0.1 points.

  4. 4.OpenWeather

    0.36%

    Moved from 3rd to 4th. 22.2K estimated branded searches, -18.1% vs prior month. Share 0 points.

  5. 5.Tomorrow.io

    0.07%

    Held 5th. 4.5K estimated branded searches, +50.8% vs prior month. Share 0 points.

  6. 6.Visual Crossing

    0.04%

    Held 6th. 2.2K estimated branded searches, 0% vs prior month. Share 0 points.

Compare popularity between Open-Meteo and its closest rivals

Every comparison with Open-Meteo

5 comparisons

How has branded search demand for Open-Meteo changed worldwide over the last 12 months?

2 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Open-Meteo worldwide rose from 23.5K to 41.2K.
  • Across the 12 months ending September 2026, Open-Meteo rose from 4th to 2nd among weather APIs worldwide.

How did search popularity change for weather APIs worldwide in September 2026?

5 changes

  1. In September 2026, WeatherAPI rose from 4th to 3rd among weather APIs worldwide.

  2. In September 2026, OpenWeather fell from 3rd to 4th among weather APIs worldwide.

  3. Estimated monthly branded searches for Open-Meteo worldwide rose 75.3% over 12 measured months, from 23.5K to 41.2K in September 2026.

  4. Estimated monthly branded searches for Tomorrow.io worldwide rose 48.8% over 12 measured months, from 3K to 4.5K in September 2026.

  5. Estimated monthly branded searches for Visual Crossing worldwide fell 22.9% over 12 measured months, from 2.9K to 2.2K in September 2026.

How are Open-Meteo’s branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Open-Meteo’s name. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • open meteo
  • openmeteo

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