- Chilly Weather
- China Air Quality Forecast - PM2.5 smog daily and hourly trend
- China Real-Time Weather
- Chipmunk
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- Christmas FotoCollage
- Citizen Tribune
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- ClassicWeather
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- Climatic
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- Climee
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- Clock-X
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- CloudSpotter – See the Sky with New Eyes and Discover the Fantastic World of Clouds
- CloudWatcher
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- Cluj Now
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- Coastal Observer | SPOTTERON
- CNY Central Weather
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- CoastalWatch
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- Coffee Break
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- Colorado Traveler
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- Coloring Your Xmas
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- Control de Heladas
- Cool & Calm - Simple Weather
- Cool or hot today?