Period: From May 2026
Issued on 11.05.2026 using data to the end of April 2026
The outlook for May is for below normal to notably low river flows across central southern England, normal to below normal for eastern Scotland and normal flows elsewhere. Below normal river flows in central southern England are likely to persist through May-July. For the rest of the UK, May-July river flows are likely to be normal to above normal in northwestern areas and normal elsewhere. Groundwater levels for most boreholes are likely to remain normal to above normal across the UK.