Prices updated daily — 8 October 2026
Product type overview
watermelon sits within Bananas & Tropical Fruit, part of Vegetables & Fruit. On this page you compare 32 products from 9 UK supermarkets: Aldi, ASDA, Co-op, Iceland, Morrisons, Ocado, Sainsbury's, Tesco and Waitrose. The lowest unit price for watermelon is £1.78/kg at Ocado. In total, 2 variants of watermelon are compared (different pack sizes and compositions). All prices are normalised to the same unit (per kilogram, per litre or per piece) so that packs of different sizes can be compared fairly — a larger pack is not automatically the best value. The ranking below shows, per variant, which supermarket currently has the sharpest price, including own-label products alongside national brands. Prices refresh daily from the retailers' own public price lists, so you never see stale offers when planning your weekly shop. Allsupers uses no affiliate links or paid placement; the ranking is purely price-based and updated from public data.
Cheapest watermelon
Compare 32 products across 9 supermarkets
watermelon — compare prices across 9 supermarkets
Ocado
Ocado Watermelon
2 kg
£1.78/kg
at 1 supermarket
NATURE'S PICK
Mini Watermelon
1 pieces
£1.79/unit
at 1 supermarket
TESCO
Tesco Mini Watermelon
1 pieces
£1.85/unit
at 1 supermarket
ASDA
ASDA Baby Watermelon
1 pieces
£2.28/unit
at 1 supermarket
Morrisons
Morrisons Baby Watermelon
1 pieces
£2.40/unit
at 1 supermarket
NATURE'S PICK
Watermelon
1 pieces
£2.69/unit
at 1 supermarket
Waitrose Ltd
Waitrose Mini Watermelon
1 pieces
£2.84/unit
at 1 supermarket
ASDA
ASDA Watermelon
1 pieces
£3.00/unit
at 1 supermarket
M&S
M&S Perfectly Ripe Extra Small Baby Watermelon
1 kg
£3.00/kg
at 1 supermarket
Co-op
Co-op Mini Watermelon
1 pieces
£3.35/unit
at 1 supermarket
Iceland
Iceland Watermelon
1 pieces
£3.50/unit
at 1 supermarket
TESCO
Tesco Watermelon
1 pieces
£3.75/unit
at 1 supermarket
Morrisons
Morrisons Watermelon
1 pieces
£3.75/unit
at 1 supermarket
Morrisons
Morrisons Whole Watermelon
1 pieces
£3.75/unit
at 1 supermarket
Sainsbury's
Sainsbury's Watermelon
1 pieces
£3.75/unit
at 1 supermarket
Morrisons
Morrisons Giant Watermelon
1 pieces
£4.50/unit
at 1 supermarket
NATURE'S PICK
Watermelon Fans
300 g
£4.97/kg
at 1 supermarket
Morrisons
Morrisons Watermelon Wedges 550g
550 g
£5.45/kg
at 1 supermarket
ASDA
ASDA Watermelon Fans 300g
300 g
£5.90/kg
at 1 supermarket
Morrisons
Morrisons Watermelon Fans 95g
95 g
£6.32/kg
at 1 supermarket
TESCO
Tesco Watermelon Wedges 550G
550 g
£6.36/kg
at 1 supermarket
ASDA
ASDA Watermelon Fingers 500g
500 g
£7.26/kg
at 1 supermarket
Sainsbury's
Sainsbury's Watermelon 540g
540 g
£7.41/kg
at 1 supermarket
TESCO
Tesco Watermelon 600g
600 g
£7.42/kg
at 1 supermarket
ASDA
ASDA Watermelon Chunks 250g
250 g
£7.92/kg
at 1 supermarket
M&S
M&S Watermelon
600 g
£8.17/kg
at 1 supermarket
TESCO
Tesco Watermelon Chunks 300G
300 g
£8.33/kg
at 1 supermarket
Morrisons
Morrisons Watermelon 300g
300 g
£8.33/kg
at 1 supermarket
Sainsbury's
Sainsbury's Watermelon 300g
300 g
£8.33/kg
at 1 supermarket
Sainsbury's
Sainsbury's Watermelon 160g
160 g
£9.38/kg
at 1 supermarket
TESCO
Tesco Watermelon 130G
130 g
£11.54/kg
at 1 supermarket
Waitrose Ltd
Waitrose Watermelon
300 g
£11.67/kg
at 1 supermarket