River Thames level upstream at Marlow Lock

This measuring station takes 2 measurements. You're viewing the upstream level. View the downstream level.

Latest at 2:00pm on 22 February

• Height: 0.22m
• Trend: Steady
• State: Normal

Normal range 0.06m to 0.45m

Height in metres over the last 5 days

We take measurements more often as the risk of flooding increases.

Download data CSV (12KB)

How levels here could affect nearby areas

• 1.24m:
  Water reaches the highest level recorded at this measuring station (10 February 2014)
• 0.45m:
  Top of normal range. Low-lying land flooding possible above this level
• 0.22m:
  Latest level

Flooding might not happen again at the same historical levels. This may be because flood management schemes are now in place.

How we measure river, sea and groundwater levels

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