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There is a flood alert within 5 miles of this measuring station

River Thames level downstream at Sonning Lock

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

Latest at 1:45am on 10 May

Height
2.09m
Trend
Rising
State
Normal

Normal range 2.00m to 3.18m

Height in metres over the last 5 days

Threshold: 3.18m Top of normal range2.09m 1:15am, 5 May2.09m 6:45am, 6 May2.06m 9:00am, 6 May2.09m 11:00am, 6 May2.05m 1:00pm, 6 May2.06m 8:15am, 7 May2.08m 2:30pm, 7 May2.08m 7:00am, 8 May2.09m 7:00pm, 8 May2.07m 7:00am, 9 May2.09m 12:45am, 10 May
Download data CSV (12KB)

How levels here could affect nearby areas

3.96m
Water reaches the highest level recorded at this measuring station (4 January 2003)
3.91m
Property flooding is possible above this level
3.18m
Top of normal range. Low-lying land flooding possible above this level. One or more flood alerts may be issued.
2.09m
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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