Global Sea Level Rise Monitor
Satellite-measured global ocean height since 1993, plus coastal tide-gauge trends (relative to the land). Ice loss and IPCC scenarios add context — not the same number as “water at your dock.”
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Global mean sea level (1993–present)
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mm / year · last 5 years (satellite)
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mm / yr² · rise speeding up over time
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Gt / year
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Gt / year
Coastal cities — tide gauges & 2050 ranges
Tide gauges measure relative sea level (ocean + land motion). Satellite GMSL above is absolute open-ocean height.
| City | Trend | Anomaly | 2050 low | 2050 high | Land motion |
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Coastal stations map
IPCC projection scenarios
Global mean envelopes (metres) — not city-specific vertical land motion.
| Scenario | Low | Mid | High |
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