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Full catalog/sentinel-3-sl-2-wst-nrt
sentinel-3-sl-2-wst-nrt·dataset

Near-real-time global sea surface temperature (Copernicus)

Sentinel-3 SLSTR Water Surface Temperature (NRT)
atmosphere ESA ESA Copernicus active
In plain English

What it measures. How warm the surface of the ocean is, mapped worldwide on a roughly 1 km grid.

How it's made. Calculated from the SLSTR thermal imager aboard ESA Copernicus' Sentinel-3 satellites as a Level-2 product, delivered quickly in near-real time.

How & where you'd use it. Feeds into weather and storm forecasting, marine warnings, and fisheries monitoring where up-to-the-minute ocean temperature matters.

What's measured

1000mAerosolCopernicusECESAEUGlobalPT3HSLSTRSL_2_WST____SatelliteSentinelSentinel-3

Coverage & cadence

  • Time span2017-10-31 → ongoing
  • Spatial extent-180, -90, 180, 90

What you can do with it

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

This Collection provides Sentinel-3 SLSTR Level-2 Water Surface Temperature products containing data on sea surface temperature measurements on a 1km grid.

Get the data

copernicus_access.py
# ESA Copernicus Data Space — open STAC API (free account)
from pystac_client import Client

cat = Client.open("https://stac.dataspace.copernicus.eu/v1")
search = cat.search(
    collections=["sentinel-3-sl-2-wst-nrt"],   # add _cog or _nc for a format variant
    bbox=(-10, 35, 30, 60),             # your area (W,S,E,N)
    datetime="2024-01-01/2024-12-31",
)
items = list(search.items())            # then read assets with rioxarray / xarray
Browsing the Copernicus STAC is open; downloading bytes needs a free Copernicus Data Space account.