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M3 Motorway Overview

If there is a ‘holiday’ motorway it has to be the M3.  Taking you southwest from London it runs from inside the M25 to just outside Southampton, where it becomes the M27.  Along the way it links up with the A303 and  

 Whether you are heading for a cruise at Southampton Docks or starting the journey to the New Forest, Devon or Cornwall the M3 is truly a Sunshine road.   

It 59 miles it is not a long one but it is a smart one (allegedly) being upgraded to become the UK’s first smart motorway which means it does not have dedicated hard shoulder

M3 Motorway Map

Click here for an M3 Map with Junctions, Services and nearby Attractions

M3 Service Stations 

Let’s face it, no motorway journey is complete without a caffeine refuel or a questionable fast food binge. Here’s where you can pull over and recharge along the M3:

  • Fleet Services (between Junctions 4a and 5):
     The main pit stop on the M3, Fleet is a proper motorway classic. Expect all the usual suspects — Costa, Burger King, WHSmith — and a leafy setting if you fancy some fresh air.
  • Winchester Services (between Junctions 8 and 9):
    The dramatic sweep through the cutting made for the motorway at Twyford down is one of the more dramatic UK motorway scenes  Split between northbound and southbound areas, Winchester Services are smaller but mighty. Great for a quick pit stop, clean loos, and a Greggs run if you’re lucky.

M3 Junctions

The M3 has 14 junctions.  Starting out as the A316 it connects with the A308 at Junction 1 before linking up to  the mighty M25 at Junction 2.  At Junction 14 it joins the M27 heading eastwards towards Portsmouth or West towards Southampton Docks and Bournemouth 

Attractions near the M3 Motorway

Here are some attractions close to M3 Motorway junctions that might make your journey a little more joyful.  Most of these will be open during business hours so please do check opening times and entry prices (where applicable) before visiting 

Lightwater Country Park

What: A large park with toilet and cafe just off junction 3 of the M3

Where: Lightwater Country Park, The Avenue, Surrey GU18 5RG

Link: https://www.surreyheath.gov.uk/parks-and-play-areas/lightwater-country-park

Honesty Basingstoke Garden Centre

What: A Garden centre just off Junction 7 of the M3

Where: Winchester Road, North Waltham, Basingstoke, RG25 2DJ

Link; https://honestygroup.co.uk/coffee-shops/honesty-basingstokegardencentre/

Cadence Cafe

What: Cafe moments from Junction 10 of the M3 

Where: Garnier Road, Winchester,  SO23 9PA

Link: https://cadencecycle.club/winchester

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