--- title: "Open-Meteo vs Tomorrow.io: Which is searched more?" description: "Is Open-Meteo or Tomorrow.io more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Weather APIs set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/open-meteo-vs-tomorrow-io" publisher: "Brandwave" --- # Open-Meteo vs Tomorrow.io: Which is searched more? Is Open-Meteo or Tomorrow.io more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Weather APIs set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Open-Meteo and Tomorrow.io - **Competitive set**: Weather APIs - **Market**: Global - **Month measured**: Sep 2026 - **Open-Meteo Share of Search**: 0.66% - **Tomorrow.io Share of Search**: 0.07% ## Is Open-Meteo or Tomorrow.io more popular in search? - In September 2026, Open-Meteo had more branded searches than Tomorrow.io among weather APIs worldwide. Open-Meteo had about 41,200 branded searches, while Tomorrow.io had 4,450. Open-Meteo made up 0.66% of all weather API searches we track, and Tomorrow.io accounted for 0.07%. - Open-Meteo was ahead of Tomorrow.io in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Open-Meteo’s share of searches among weather APIs worldwide moved from 0.38% to 0.66%, and its estimated monthly branded searches moved from 23.5K to 41.2K. - Across the 12 months ending September 2026, Tomorrow.io’s share of searches among weather APIs worldwide moved from 0.05% to 0.07%, and its estimated monthly branded searches moved from 3K to 4.5K. ## 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. Tomorrow.io was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Open-Meteo was listed before Tomorrow.io in four out of five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Open-Meteo | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | WeatherAPI | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | OpenWeather | 3rd | 3 of 3 | 0 of 2 | 3 of 5 | | Tomorrow.io | 4th | 3 of 3 | 1 of 2 | 4 of 5 | | Visual Crossing | 5th | 2 of 3 | 2 of 2 | 4 of 5 | | AccuWeather | 6th | 0 of 3 | 1 of 2 | 1 of 5 | ## Every AI answer about weather APIs - Asked ChatGPT "Which weather API should I use?": 1. Open-Meteo, 2. OpenWeather, 3. WeatherAPI, 4. Visual Crossing, 5. Tomorrow.io - Asked ChatGPT "What are the best weather APIs?": 1. Open-Meteo, 2. OpenWeather, 3. WeatherAPI, 4. Tomorrow.io, 5. Visual Crossing - Asked ChatGPT "What's the best weather API for an app?": 1. Open-Meteo, 2. OpenWeather, 3. WeatherAPI, 4. Tomorrow.io - Searched Google, AI Overview "weather apis": 1. WeatherAPI, 2. Open-Meteo, 3. Visual Crossing - Searched Google, AI Overview "forecast api": 1. Tomorrow.io, 2. Visual Crossing, 3. Open-Meteo, 4. AccuWeather Brands are listed in the order each answer named them. The answers were collected in the United States on October 19, 2026. ## How did search popularity change for weather APIs worldwide in September 2026? - Estimated monthly branded searches for Open-Meteo worldwide rose 75.3% over 12 measured months, from 23.5K to 41.2K in September 2026. - Estimated monthly branded searches for Tomorrow.io worldwide rose 48.8% over 12 measured months, from 3K to 4.5K in September 2026. ## Month by month | Month | Open-Meteo estimated searches | Open-Meteo Share of Search | Open-Meteo rank | Tomorrow.io estimated searches | Tomorrow.io Share of Search | Tomorrow.io rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 23.5K | 0.38% | 4 | 3K | 0.05% | 5 | | Nov 2025 | 27.6K | 0.54% | 3 | 3.7K | 0.07% | 5 | | Dec 2025 | 22.5K | 0.36% | 4 | 3.7K | 0.06% | 5 | | Jan 2026 | 27.6K | 0.3% | 3 | 3.8K | 0.04% | 5 | | Feb 2026 | 32.5K | 0.64% | 3 | 5.5K | 0.11% | 5 | | Mar 2026 | 39.7K | 0.64% | 3 | 4.5K | 0.07% | 5 | | Apr 2026 | 41.2K | 0.66% | 2 | 3.7K | 0.06% | 5 | | May 2026 | 41.2K | 0.54% | 2 | 4.5K | 0.06% | 5 | | Jun 2026 | 41.2K | 0.54% | 2 | 3.7K | 0.05% | 5 | | Jul 2026 | 39.7K | 0.52% | 2 | 3K | 0.04% | 5 | | Aug 2026 | 39.7K | 0.52% | 2 | 3K | 0.04% | 5 | | Sep 2026 | 41.2K | 0.66% | 2 | 4.5K | 0.07% | 5 | ## How each brand is measured Brandwave collects information about searches that people make online using Open-Meteo’s and Tomorrow.io’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Open-Meteo**: Measured on the search terms “open meteo” and “openmeteo”, summed into one figure. - **Tomorrow.io**: Measured on the search terms “tomorrow io” and “tomorrowio”, summed into one figure. - [Open-Meteo profile](/demand/global-en/brands/open-meteo) - [Tomorrow.io profile](/demand/global-en/brands/tomorrow-io) - [All weather APIs worldwide](/demand/global-en/categories/weather-apis): The set both shares are measured inside, 6 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Open-Meteo or Tomorrow.io more popular in search? In September 2026, Open-Meteo had more branded searches than Tomorrow.io among weather APIs worldwide. Open-Meteo had about 41,200 branded searches, while Tomorrow.io had 4,450. Open-Meteo made up 0.66% of all weather API searches we track, and Tomorrow.io accounted for 0.07%. ## Cite this page Brandwave. "Open-Meteo vs Tomorrow.io: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/open-meteo-vs-tomorrow-io This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/open-meteo-vs-tomorrow-io. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.