Marine Weather | SailGrib

In-app purchases
2.66K reviews
Content rating
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About this app

Designed for Iridium GO! and Approved by Iridium.

SaiGrib is a weather and tides forecast app designed for the sailing community, cruisers and raceers, worlwide.
Get all the major models of weather forecast from many different sources in one easy to use app.

Weather data are downloaded as grib files while tides are calculated locally on your device.

- pan and zoom the map to choose your region
- download data using the best Grib files providers : SailGrib, Great Circle, GMN, OpenWRF, SailDocs...
- specify the parameters(wind, pressure...) to your needs
- request can be adjusted to match a maximum file size
- can be used at sea with a satellite phone or the Iridium Go
- offlline maps capability combined with satellite mail allows usage at sea.

With SailGrib, you can download and view the following data:
- Wind (10m above sea level)
- Pressure (reduced to mean sea level)
- Precipitation (accumulated over 6 hours)
- Total cloud cover
- Air Temperature ( 2m above ground)
- Wave (significant wave height, mean wave direction and period)
- Tidal or oceanic currents

With SailGrib, you can specify the following parameters for your grib file request:
- grib provider : SailGrib, Great Circle, SailDocs, Open WRF, MeteoConsult, GMN, Mercator Ocean for oceanic and coastal currents ....
- request method : direct download (SailGrib, Great Circle, MeteoConsult, GMN) or email (SailDocs, GMN or Great Circle)
- grid resolution: from very high resolution to 2.5°
- time step between forecasts :from 1 hour to 12 hours depending on models
- number of days for the forecast: from 1 to 14 depending on model
- maximum file size. SailGrib estimates the size of the grib file you request and adjust the grid resolution and the time step to make sure your file will size be lower than your set limit.

With SailGrib, you can view the following data:
- Windbarbs
- Isobars
- Precipitation maps
- Cloud cover maps
- Temperature maps
- Waves maps and arrows
- CAPE map
- Currents

- Tide forecast are not official and are for reference purpose only.
- Grib files are computer-generated forecast files which are sent without review, and are offered on an as-is basis. There is no assurance that the data is accurate or correct. By using these data you agree to these limitations and assume all the responsibility for their use.

SailGrib uses the JGRIB Java GRIB decoder ( and OpenStreetMap (
Updated on
Oct 19, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

2.19K reviews
Julian Windmill
January 6, 2024
Fantastic... just wish it also worked on ios
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January 6, 2024
Thanks! Stay tuned, we have teamed up with the Weather4D team and are in the process of writing a completely new app tha twill be multiplatform. ETA: Q3 2024
J Leal
June 15, 2022
Very straight fwd, set zoom, click download and two days wind forecast. Used to follow two handed round Britain race.
1 person found this review helpful
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Tino Gonzalez Lacoste
September 24, 2021
A great app for those who enjoy sailing. Reliable and quick files. Highly recommended
3 people found this review helpful
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September 24, 2021
Thanks, fair winds...

What's new

- Fixed a bug that prevented access to saved grib files