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Unit
Unit value
Time steps
Hourly
3 Hourly
6 Hourly
Daily
Time interpretation
Time interpretation value
Bits per value

The bitsPerValue determines the relative size of the data download required for each parameter. The bitsPerValue ranges from 12 to 20 bits for our current parameters.

Note the data download size is not a direct multiplier of the bitsPerValue as there are standard overheads within the generated GRIB files which are common for all parameters. However, the bitsPerValue is a good guide to the relative cost of each parameter.
BitsPerValue value
Bits per value

The bitsPerValue determines the relative size of the data download required for each parameter. The bitsPerValue ranges from 12 to 20 bits for our current parameters.

Note the data download size is not a direct multiplier of the bitsPerValue as there are standard overheads within the generated GRIB files which are common for all parameters. However, the bitsPerValue is a good guide to the relative cost of each parameter.

Bits per value
Level Type
Level type value
Parameter ID
Parameter ID value
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Application name

Your application name is used as a link to our gateway through which your API requests are processed. On subscription we automatically create an application for you with a default name. The application name has no bearing on how things are processed.

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Message

By ordering products from the Met Office Weather DataHub and clicking “confirm”, you are agreeing to be bound by the Met Office Weather DataHub Terms and Conditions which apply to the order.

Should you wish to discuss licensing terms, then please call 0033 678 3454 or email licensing@metoffice.gov.uk

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About monthly data usage

Data plans

All data plans are managed in GBs worth of data but note we use 1,024 conversion for all our plans. So 1,024 GB is equivalent to 1 TB (Terabyte). Strictly speaking this is TiB and GiB i.e. Tebibyte and Gigibyte

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About monthly data usage

Estimate monthly usage

Estimated order size if all selected data for all runs is taken based on an expected file size per parameter. Note this is a guide only and actual sizes for each parameter will vary.

Whilst every effort has been made to make the estimated file download sizes accurate customers should check the projected figures which are based on actual downloads as well as the estimated file sizes.

Usage this month

This figure is the actual data transferred for this calendar month so far.

Projected Monthly Usage

The projected monthly usage is calculated by:

  • retrieving the amount of data downloaded in the last 30 days
  • divide by the number of active days (>0 bytes downloaded) to get a daily average
  • multiply by the number of days in the current month for maximum monthly usage
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Order Naming

Note when used in the API the order name/ id is transformed by substituting spaces with hyphens and all letters are lowercase e.g. 'GLOBAL10k 12amRun' becomes 'global10k-12amrun'

For the avoidance of doubt the transformed order id to use in the API reproduced below in the Delivery section

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Taxpayer Identification Number (TIN)

The taxpayer identification number (TIN) is the unique identifier assigned to the Account Holder by the tax administration in the Account Holder’s jurisdiction of tax residence. It is a unique combination of letters and/or numbers used to identify an individual or entity for the purposes of administering the tax laws of that jurisdiction.

For more information, please see https://www.gov.uk/hmrc-internal-manuals/international-exchange-of-information/ieim402040

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Met Office

Weather DataHub

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Please be advised that all credit card subscriptions for atmospheric model data will be subject to a roughly 8% price increase from mid-November 2025, due to increased operational costs. For further details, please look out for an email with further details on the change.

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Explore our data

Atmospheric - Data visualisation

Atmospheric models

We offer GRIB2 data on a range of products that are sub-set by region, parameter, levels, time steps and model run.

  • Global deterministic (10 km)
  • UK deterministic (2 km) - standard
  • UK deterministic (2 km) - latitude-longitude
  • Met Office Global and Regional Ensemble Prediction System - Global
  • Met Office Global and Regional Ensemble Prediction System - UK
Find out more
Pricing Try our sample data API documentation
Site specific - Data visualisation

Site-Specific forecast

The Met Office offers a range of products for users wanting to access and utilise Site-Specific forecasts. All Site-Specific forecast data is available either as deterministic or probabilistic forecasts to best suit your needs

Met Office Global Spot

Our Global Spot product is recommended for users who want to access Site-Specific forecasts in a deterministic way, to understand the “most likely” scenario for a weather forecast. We offer GeoJSON data via three APIs for a single specified location defined by latitude and longitude.

  • Global hourly spot data 1.0.2
  • Global three hourly spot data 1.0.2
  • Global daily spot data 1.0.2
Pricing Try our sample data API documentation
 

Met Office Site-Specific Blended Probabilistic Forecast – BETA

We have developed a new blended probabilistic forecast system that takes outputs from our Numerical Weather Prediction (NWP) models. We recommend this product for users who want to access Site-Specific forecasts in a probabilistic way, with the flexibility to select what data they need for their specific use.

Find out more
Pricing Try our sample data API documentation
Land observations

Observations

The Met Office operates an extensive network of synoptic automatic weather stations distributed uniformly across the UK. All key meteorological variables are recorded at stations that are routinely inspected and maintained according to international standards. Land observations serve many vital purposes and are used in the production of warnings and forecast models, as well for international exchange.

Land Observations

Our Land Observations API provides access to recent historical weather data from ground-based instruments across UK locations. The API is ideal for applications that need accurate, hourly data on key weather parameters observed at the land surface.

Find out more
Pricing Try our sample data API documentation
Map images - Ground temperature

Map images

We offer PNG map images according to time step and model run for the following parameters:

  • Temperature at the surface
  • Precipitation rate
  • Total cloud cover
  • Pressure reduced to mean sea level
Find out more
Pricing Try our sample data API documentation