The Best Cooling Methods to Keep Outdoor Events Cool During Summer
Date: 27 April 2022

Hosting events outdoors during summer is usually a hit with guests who enjoy warm weather and scenic landscapes. Hosting events outdoors adds an extra layer of intrigue, but it also poses unique risks to guests and staff. Events such as weddings, corporate functions, and sporting events carry an extra layer of excitement when held outdoors.
Being outdoors for long periods can expose guests to uncomfortable heat and sunburn. Extreme heat can lead to many dangerous health concerns, such as heat stroke and severe sunburn.
Keeping guests and event staff cool at outdoor events requires a combination of reducing sun exposure and lowering the ambient temperature. Exposure to direct sunlight can be reduced by creating shady areas with umbrellas and gazebos. Reducing the temperature in an outdoor space can be done with cooling systems such as evaporative air coolers or cooling fans.
The Importance of Cooling for Outdoor Events During Summer
Improving Guest Comfort in Hot Weather
Maintaining guest comfort at outdoor events is important, especially during summer heat waves. Keeping guests cool and out of direct sunlight during outdoor events is essential to keeping guests comfortable and happy.
No one wants to be at an event, especially outdoor events, where they are at risk of heat stroke or sunburn. Here are a few simple tips you can follow to ensure your guests stay cool and comfortable:
Ensure there is ample shade for them to sit or stand in.
Provide cold beverages to keep them hydrated.
Encourage your guests to move around to prevent heat buildup in one area.
Create designated cooling areas with cooling appliances such as evaporative air coolers, cooling fans, and misting fans.
Preventing Heat Stroke and Other Heat-Related Health Risks
Keeping your guests cool is not just about keeping them comfortable. One of the biggest issues outdoor events face in summer is heatstroke or heat exhaustion. Other safety concerns brought on by hot weather include:
Dehydration
Sunburn
Fatigue
Overheating
Outdoor events where cooling is especially important are:
Festivals
Sporting events
Weddings and outdoor ceremonies
Outdoor concerts
Markets
Corporate Activations

The Best Cooling Methods for Outdoor Events
Evaporative Air Coolers
Evaporative air coolers are uniquely suited for outdoor cooling, as they require a constant supply of air to operate optimally. Evaporative air coolers draw in warm air from their surroundings and then pass it through water-soaked cooling pads. The air is cooled via evaporation when it comes into contact with the cooling pads.
Evaporative air cooling is a great cooling option for:
Marquees
Outdoor dining areas
Covered patios
Open-sided tents
Festival seating zones
Corporate outdoor events
Sport Events
Warehouses and workshops
Why Evaporative Air Coolers Work for Outdoor Events
A benefit of using evaporative air coolers for outdoor events is that their cooling effectiveness increases when there is a steady flow of fresh air. Evaporative air coolers also increase the humidity levels by adding moisture to the air. This increases the cooling efficacy and improves guest comfort. Additional benefits of using an evaporative air cooler outdoors include:
Evaporative air coolers are highly portable.
Provides cooling for large areas.
Does not consume as much power as air conditioners.
Best Places to Use Evaporative Air Coolers Outdoors
Evaporative air coolers work best when used in a space with good airflow and ventilation. Some examples of this include marquee tents with openings, outdoor patios and terraces, and outdoor seating areas.
Misting Fans
Misting fans are another effective outdoor cooling method that uses the natural cooling effect of evaporation. Outdoor misting fans spread a cooling mist over guests that instantly cools them down when it touches their skin. The cold-water mist also has the benefit of cooling the air around the guests.
Outdoor Event Use-cases for Misting Fans
Outdoor event venues where misting fans deliver effective cooling include festival and carnival grounds, outdoor bar and restaurant patios and terraces, queueing areas, and outdoor sports grounds.
Misting Fan Benefits
Misting fans provide strong and fast outdoor cooling in hot weather. Most misting fans are portable units and can be moved around to cool areas as needed. Terrace misting systems are often fixed in place and have the benefit of turning on automatically when temperatures reach certain levels.
Things to Keep in Mind When Using Misting Fans
Misting fans should not be used near any of the following:
Electronic equipment or live plug points.
Catering equipment and cooking areas.
Dance floors or other slippery walkways.
Creating Shade
Creating shady areas remains one of the easiest and most effective ways to cool outdoor events. Providing guests with shady areas gives them a place to avoid direct sunlight. Shady areas are especially effective in increasing guest comfort when paired with the offering of cold drinks or ice water.
Effective ways to create shady areas include putting up marquees, tents, or gazebos. More ways to create shady areas include using umbrellas, shade sails, canopies, and pergolas.

Increasing Airflow
Using fans to increase or improve airflow in outdoor event spaces might not actively reduce the temperature, but it can make the space feel less stifling.
Types of Fans for Outdoor Use
Pedestal fans
Drum fans
Industrial fans
Floor fans
Tent fans
Best Places to Use Fans
Seating areas
Dining spaces
Queue lines
Ceremony areas
Bar areas
Vendor stalls
Rest Zones

Common Mistakes to Avoid When Using Outdoor Fans
When using fans to cool outdoor events, the fans must be placed strategically. If the fans are placed incorrectly, airflow can be made worse. To get the most from your outdoor fans during an event, avoid the following:
Pointing fans directly into walls
Blocking the airflow
Using small household fans for large crowds
Placing cables in guests’ way
Designate Dedicated Cooling Zones
Outdoor cooling can be an expensive endeavour. Because of this, it is more cost-effective to create cooling zones rather than trying to cool an entire venue. Cooling zones provide guests with designated areas to go when the heat becomes too much to bear.
A designated cooling zone can be made up of multiple cooling methods to maximise guest comfort. These cooling methods can include:
Shaded seating.
Cooling fans and misting fans.
Evaporative air coolers.
Hydration stations.

Where is the Best Place for a Cooling Zone?
Cooling zones are best placed in high traffic areas like entrances and exits, dining areas, near busy walkways, and near lines where people queue.
Keep Guests Hydrated
Keeping your guests hydrated will keep them comfortable and prevent heat exhaustion and heat stroke. Hydration is important on hot days as dehydration can worsen the effects of heat-related health issues. n
Popular Hydration Options Include:
Free water stations offering ice water and bottled water.
Drink refill stations and beverage carts offering cold drinks and other cold refreshments.
Ice buckets
Why Hydration is Important
When the body is dehydrated, it makes it harder to sweat. Sweating is the body’s primary cooling mechanism. So, when you are dehydrated, the body cannot cool effectively.
Best Places for Hydration Stations
Near entrances
Beside stages
Near food vendors
Around seating areas
Beside cooling zones
Along queue lines
Provide Cooling Comfort Features
Cooling at outdoor events does not include large appliances or extensive planning. Providing small comfort features can go a long way toward improving guest comfort. Examples of comforts for guests include:
Handheld fans
Cooling towels
Sunscreen stations
Shaded benches
Ice buckets
Start Cooling Before Guests Arrive
Waiting until guests arrive before turning on cooling devices means that guests will arrive at a hot venue. Switching cooling appliances on before guests arrive helps to ensure the venue is a comfortable temperature when the event space opens to guests. This, in turn, maximises guest comfort from the moment they first arrive.
Choosing the Right Cooling Solution for Outdoor Events
Choosing the right cooling solution can be the difference between a successful event and an unsuccessful one.
Best Cooling Solutions Based on Event Type | |||
|---|---|---|---|
Outdoor Weddings | Outdoor Festivals | Outdoor Corporate Events | Outdoor Sporting Events |
Shaded seating | Large, designated cooling areas | Designated cooling areas | Shaded areas created by gazebos and umbrellas |
Cooling fans | Industrial cooling fans | Shaded seating and areas | Hydration Stations |
Evaporative air coolers | Misting fans | Evaporative air coolers | Designated cooling areas |
Designated cooling areas | Hydration stations | Cooling fans | Cooling fans for athletes |
Hydration stations | Staff cooling areas | Hydration Stations | Misting fans |
Venue Type and Layout
The venue type and layout of the venue where you are hosting your outdoor event are among the most crucial factors in determining what type of cooling solution you require.
Before you choose a cooling solution for your outdoor event, ask yourself the following questions:
Is the venue open or enclosed?
How many guests will attend?
What is the ventilation and airflow in the venue like?
Does the access have access to water?
What are the weather conditions on the day of your event?
What will the duration of your event be?
Outdoor Event Cooling Mistakes
Using small domestic fans – Cooling fans designed for domestic use are not strong enough for outdoor events.
Forgetting about areas where people queue – Standing in queues is already an uncomfortable experience for guests. Add in heat and direct sunlight, and you have an unbearable situation. Try to arrange queueing areas in shady areas to increase guest comfort when they must queue.
Overlooking staff areas – Guests are not the only people who need to be kept cool at outdoor events during summer. Event staff, such as vendors, caterers, security staff, and performers, are often at greater risk of overheating while performing strenuous duties.
Final Thoughts on the Best Ways to Cool Outdoor Events During the Summer
Outdoor cooling needn’t be difficult in the summer. There are many natural cooling solutions available, as well as cooling equipment specifically designed for outdoor cooling. By combining natural cooling methods and high-quality cooling equipment, you can guarantee guest comfort.
Selecting the perfect cooling solution for your outdoor event is dependent on your event type and the layout of the venue. Large outdoor events that take place in vast open spaces benefit from commercial-grade cooling equipment, like industrial evaporative air coolers. For smaller outdoor events, like weddings and markets, creating shady areas and using misting fans will work really well to improve guest comfort.
For a wide range of outdoor cooling equipment, check out our comprehensive cooling section, where you can find outdoor fans, evaporative coolers, and portable air conditioners. If you’re uncertain about what the best solution for your outdoor event is, feel free to contact us, and one of our HVAC experts will assist you.
Frequently Asked Questions About Outdoor Cooling During Summer
What is the best cooling solution for outdoor events?
There are many ways to cool guests at outdoor events, and the best cooling solutions for outdoor events depend on the event type and venue. Fully outdoor spaces benefit from evaporative air coolers, industrial fans, shade structures, and hydration stations. Covered outdoor spaces, such as enclosed tents, benefit more from portable air conditioners.
Do evaporative air coolers work for outdoor events?
Yes, evaporative air coolers can be a great cooling solution for outdoor events, especially if the event takes place in open outdoor spaces.
Are misting fans good for outdoor events?
Misting fans can be useful for open-air summer events, especially in hot and dry conditions. However, they may not be ideal near food, electronics, formal seating, or areas where guests do not want moisture on clothing or décor.
How do you cool a marquee in summer?
To cool a marquee in summer, use a combination of ventilation, shade, evaporative coolers, portable fans, and hydration stations. If the marquee is enclosed, portable air conditioning may also be suitable, provided the hot air can be vented outside.
How do you keep guests cool at an outdoor wedding?
Use elegant shade structures, quiet fans, evaporative coolers for covered areas, cold drinks, hydration stations, handheld fans, and cool seating zones. Place cooling near the ceremony area, dining area, bar, dance floor, and photo areas.
What is the most affordable way to cool an outdoor event?
The cheapest methods are shade, natural airflow, water stations, handheld fans, and strategic event layout. However, for larger events or heatwave conditions, commercial cooling equipment is usually more reliable.