Seasonal · 3 min read · Updated 6 November 2026
Winter marquee events: heating, condensation and short daylight
Why winter needs extra planning
Winter is quieter for marquee hire, so dates are easier to get and some suppliers offer better availability. But the weather adds work. Ground is wetter, frost can harden or soften it overnight, winds are often stronger, and in December the sun sets before 4pm in much of the UK. That affects build times, guest comfort and safety.
Heating: getting it right
Most marquee heating uses indirect-fired diesel or electric heaters placed outside, with warm air ducted in. Indirect units keep exhaust fumes outside the marquee, which is safer and avoids smell. Gas patio heaters and open flames inside a marquee are generally a bad idea and many suppliers do not allow them.
- Ask the supplier to size heating for the marquee volume and the expected outside temperature
- Turn heaters on an hour or two before guests arrive
- Use thermostats so the space does not overheat when it fills with people
- Keep fuel tanks and generators away from entrances and walkways
- Make sure someone is responsible for refuelling and checking the heaters during the event
Condensation and damp
When warm, humid air from people, catering and heaters meets cold roof fabric, condensation forms. In an unlined marquee it can drip. Linings help by keeping a layer of air between the roof and the guests, and good airflow helps more. Ask about ventilation, especially if catering is inside the main structure.
A raised floor or cassette flooring keeps guests off damp ground and stops cold rising through the floor. Carpet on top makes a big difference to comfort.
Keep the marquee heated at a low level overnight if it is built several days before the event, as this helps keep linings and furniture dry.
Ground, wind and snow
Waterlogged ground can make it harder to anchor stakes and get vehicles on site. Ask the supplier whether they need trackway for vans and whether the build may have to move if the ground is too wet.
Winter storms bring higher gusts. Marquees are designed and anchored for set wind loads, and suppliers monitor forecasts. Most marquees are not designed to carry a heavy snow load, so if snow is forecast the supplier may need to keep the marquee heated, clear snow from the roof, or close the structure.
Light and timings
| Month | Typical sunset in England | What it means |
|---|---|---|
| November | Around 4pm to 4:30pm | Build and photos before mid-afternoon |
| December | Around 3:45pm to 4pm | Lighting needed from mid-afternoon |
| January | Around 4pm to 4:45pm | Plan arrivals and photos early |
| February | Around 5pm to 5:45pm | Days lengthen, still cold evenings |
Exact times vary across the country. Plan outdoor lighting for car parks, paths and toilet routes as well as inside the marquee.
Short days also affect the build and take-down. Crews may need lighting to work safely in late afternoon, so check that the supplier has allowed for it and that there is enough time in daylight for anchoring and work at height.
Safety checks for heaters and generators
Winter events rely more heavily on heaters, generators and fuel, so a few checks on the day are worth doing.
- Heaters and generators should be positioned outside the marquee, with exhausts pointing away from entrances, walkways and neighbouring property
- Ducting should be secured so it cannot be kicked loose or become a trip hazard
- Fuel should be stored in suitable containers, away from guests and sources of ignition
- Cables should be routed or covered so they are not lying in standing water
- A named person should know how to switch heaters off in an emergency
- Fire extinguishers suitable for the equipment should be close by
If anyone notices fumes, a smell of fuel or a heater cutting out repeatedly, switch it off and call the supplier rather than trying to fix it.
Extras worth budgeting for
- Full lining and clear or framed windows to keep views while holding heat
- Hard flooring with carpet
- Indirect heating with fuel for the whole event
- Covered walkway to toilets and catering
- Matting at entrances to stop mud being tracked in
- Coat rail or cloakroom area
- Extra lighting inside and outside
Heating and fuel can add noticeably to the overall cost, so ask for them to be included and itemised in the quote rather than added later.
Frequently asked questions
Can you have a marquee wedding in winter?
Yes. With full lining, a hard floor, good heating and lighting, winter marquees can be warm and atmospheric, and dates are often easier to secure. The key is planning for weather, daylight and ground conditions, choosing a supplier who is comfortable building in winter, and making sure the heating is sized properly rather than guessed.
How many heaters does a marquee need?
It depends on the marquee volume, the lining, the outside temperature and the number of guests, since a full marquee generates a lot of its own heat. A small party marquee may need one or two heaters, while a large wedding marquee can need several. Ask the supplier to calculate it and allow for the coldest likely night.
Is a marquee safe in winter wind?
A professionally installed marquee is designed and anchored for set wind loads, and good suppliers monitor forecasts and have a plan if winds are expected to exceed safe limits. Follow their instructions, such as keeping doors closed in strong wind, and accept that in extreme weather the event may need to move or pause.
winter marquee heating condensation seasonal
Related services
We cover 250 towns and cities, including Leeds, Bradford, Newcastle upon Tyne, Sunderland, Cardiff, Swansea.
