1. How Do You Keep a Camper Cool in Hot Weather?

Once the camper has heated up completely, the stored heat can only be released slowly. Protection against heat therefore begins with the choice of pitch. A spot beneath trees or on the shaded side of a building can reduce direct sunlight.

Keep the position of the sun throughout the day in mind: a pitch that is shaded in the morning may be fully exposed to the sun by late afternoon. The low evening sun in particular can heat up the interior again shortly before bedtime. 

The surface of the pitch also plays a role. Asphalt and unshaded gravel surfaces absorb heat during the day and release it again later. Some campers therefore prefer higher locations or pitches near water. Whether these are actually cooler depends on the weather, wind and local conditions. 

If you use a portable solar panel, you can position the vehicle independently of the sun and place only the panel in direct sunlight.

2. When Should You Ventilate the Camper in Summer?

If the outside temperature is still lower than the temperature inside the camper early in the morning, doors, windows and roof openings should be opened wide. Ventilation is particularly effective when several openings face each other and create a cross-breeze.
However, once the outside temperature rises above the temperature inside the vehicle, continuous ventilation no longer provides any cooling. Instead, more warm air enters the camper. Openings on the sunny side should therefore remain closed or shaded whenever possible. 

As soon as it becomes cooler outside in the evening, it is time to ventilate thoroughly again. Open the available windows and roof openings so that the heat stored during the day can escape.

3. What Helps Reduce Heat in a Pop-Up Roof?

Warm air rises and therefore also accumulates in the upper sleeping area. In an open pop-up roof, it needs a path that is as unobstructed as possible to escape. 

Open several windows in the fabric bellows at the same time so that air can flow across the roof. Opening windows on opposite sides is particularly effective. Campers report that fabric bellows with several open windows provide noticeably better air circulation than a single opening. 

Mosquito nets do not provide cooling themselves, of course, but they allow the windows to remain open throughout the night. This lets cooler outside air flow in while preventing mosquitoes and other insects from entering the sleeping area unhindered. 

SCA practical tip: Ventilation without mosquitoes

For the best possible cross-ventilation, open several windows on opposite sides of the fabric bellows. The integrated mosquito nets keep insects out of the sleeping area. For large-area ventilation of the vehicle, SCA also offers suitable mosquito nets for various vehicle models.

4. Where Should You Position the Fan in the Camper?

A fan does not lower the air temperature. However, the movement of air supports evaporation from the skin, which can make it feel more comfortable. A fan can also be used to direct warm air out of the camper. 

In the pop-up roof, a small clip-on or USB fan can be positioned so that it directs warm air outside through an open fabric bellows window. Fresh air can then flow in through an opening on the opposite side. In the lower part of the vehicle, the same effect can be achieved using a window or an open roof vent. 

A device that is as quiet as possible is recommended for the sleeping area. Its noise level, mounting and airflow should be tested before the trip. The fan must be securely attached and must not obstruct either the fabric bellows or the roof mechanism.

5. How Can You Shade the Camper?

Awnings and sun canopies create a sheltered area beside the vehicle. Depending on the position of the sun, they can also help prevent direct sunlight from hitting the side windows and vehicle walls. 

Suitable external covers are particularly effective for the windscreen and side windows because they block solar radiation before it reaches the glass. When using internal blinds or covers on roof windows and plastic windows, follow the instructions provided by the respective manufacturer. Unsuitable or incorrectly fitted covers can cause heat to build up between the window and the blind or cover. 

Additional protective covers for pop-up roofs can affect air circulation around the fabric bellows. Therefore, follow the instructions provided by the respective manufacturer and keep all designated ventilation openings clear.

SCA practical tip: Additional protection for your windows
A significant proportion of solar radiation enters the vehicle through the windows. The SCA thermal window mat provides additional protection for the vehicle windows and can be used in summer heat as well as in low temperatures.

6. Which Sources of Heat Should You Avoid in the Camper?

Cooking, electrical appliances and lighting release additional heat into the interior. On particularly hot days, warm meals should therefore be prepared outside whenever possible or during the cooler hours of the day. 

Refrigerators and cool boxes also generate waste heat. Their designated ventilation openings must not be covered. Batteries, medication and other heat-sensitive items should not be stored directly behind windows or in particularly warm storage compartments. 

When the camper is parked, it can be helpful to open cupboard doors. This prevents additional heat from building up inside enclosed compartments. Naturally, all items must be safely stowed again before continuing your journey.

7. How Can You Sleep Better in a Pop-Up Roof in Hot Weather?

On very warm nights, a thin sheet is often sufficient. Lightweight, breathable sleepwear and airy bedding help wick moisture away from the body.

Breathing and moisture released during the night can cause condensation to form in the sleeping area. The mattress and bedding should therefore be aired regularly. After getting up, it is advisable to leave the mattress uncovered for a while and not close the roof immediately.

A bottle filled with cool water or a suitable cooling pad can provide short-term relief. Very cold objects should not be placed directly on the skin for prolonged periods.

8. What Should You Consider When Planning Your Trip?

Ventilation and fans can reduce heat build-up. However, they cannot lower the temperature below that of the outside air. If nights remain very warm and windless, the options without air conditioning are limited. 

Some experienced campers therefore prefer to visit southern regions in spring or autumn and travel north, to the coast or to higher elevations during midsummer. You can also adapt your daily routine: excursions, journeys and physical activities can be moved to the morning or evening. 

Whenever possible, spend the hottest hours of the day in the shade, near water or outside the heated vehicle.

9. What Should You Consider When Travelling with Children and Pets?

Children and pets must never be left alone in a parked vehicle in hot weather. This applies even when the windows are open and regardless of whether the camper is parked in the shade. The position of the sun can change, and the interior can heat up significantly within a short time. 

Babies, young children, older people and those with certain pre-existing medical conditions are particularly sensitive to high temperatures. Pets must always have access to sufficient water and a permanently shaded place to rest.

10. When Does Heat Become a Health Risk?

At high temperatures, the body loses fluids and minerals. Drinking enough water and taking regular breaks in the shade are therefore essential. Alcohol is not suitable for quenching thirst in hot weather. 

Severe thirst, weakness, nausea, dizziness and circulatory problems can be signs of heat exhaustion. Anyone affected should be moved to a cooler, shaded place. Heat exhaustion can develop into heatstroke and must be taken seriously. Detailed information on symptoms and first aid is available from the German Federal Ministry of Health’s information portal at gesund.bund.de.

In the event of severe symptoms, impaired consciousness or a medical emergency, seek immediate help.