Postcode district outlook
Hosepipe ban in PO3
The hosepipe ban position for the PO3 postcode district — 441 live postcodes, served mostly by Portsmouth Water — checked against the national index on 19 August 2026. This is an index check, not a prediction.
The answer for PO3
No Temporary Use Ban is listed in the national index for PO3. Portsmouth Water is the primary supplier.
- Postcodes
- 441
- Primary supplier
- Portsmouth Water
- Share of district
- 100%
- Sectors
- 2
Water-supply boundaries can cross postcode districts. View the official notice · Check an exact postcode for a definitive answer
Garden watering decision · PO3
Let the rain handle it
Hold offYour garden should get enough rain over the next five days. Check pots and new plants separately.
- Forecast period
- Next five days
- Forecast rain
- 19.8 mm
- Estimated requirement
- 6.9 mm
- Rain covers of need
- 100%
- Estimated remaining need
- 12.9 mm shortfall
More rain is expected than an established garden is likely to need.
Estimate for an established mixed garden border · PO3 district · updated 19 Aug, 15:00
The answer compares the latest Met Office forecast with an estimated garden water need. It is guidance, not a precise measurement, and a hosepipe ban always takes priority.
Water suppliers covering PO3
The supplier split is mapped from the district’s centroid across the published water resource zones and is a guide, not an address-level guarantee.
Portsmouth Water
Not listed100% of mapped units · high confidence · Full status page
Water resource zones near PO3
PO3 maps to the water resource zone below. Zones are the official planning areas suppliers use to report how much water they have.
Find your exact postcode
Every live postcode in PO3 is listed below. Choose one to open its local water outlook, or use the search box to find a specific address.
Pick a postcode to open its local water outlook
PO3 5 (254 postcodes)
PO3 6 (187 postcodes)
Hosepipe ban rules for PO3
The rules that apply depend on your supplier’s notice. The general position: watering cans and buckets stay allowed, while a hosepipe connected to the mains is restricted during a Temporary Use Ban.
This is an index check, not a prediction. The postcode inventory comes from ONSPD Open Geography (onspd-latest-postcode-centroids), and the supplier split is mapped from district centroids. For a legally reliable answer for your address, use the exact-postcode checker or the supplier’s own checker.