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2026-05-15 13:46:11 +01:00
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@@ -56,7 +56,7 @@
"name": "How hot does a car get in the sun?",
"acceptedAnswer": {
"@type": "Answer",
"text": "A sealed car in direct sunlight can reach cabin temperatures 20–30 °C above outside air temperature within 30–45 minutes. On a 25 °C day with strong sun, cabin air can hit 50–55 °C. SunScope models this hour by hour using the actual solar radiation forecast, accounting for body panel conduction and window solar gain. Values above 35 °C are dangerous for children and pets; above 45 °C can be fatal within minutes."
"text": "A sealed car in direct sunlight can reach cabin temperatures 20–30 °C above outside air temperature within 30–45 minutes. On a 25 °C day with strong sun, cabin air can hit 50–55 °C. SunScope models this hour by hour using the actual solar radiation forecast, accounting for body panel conduction and window solar gain. Motorhomes and caravans are treated separately as insulated occupied living spaces, with reflective panels, retained warmth, and slower heat response. Values above 35 °C are dangerous for children and pets; above 45 °C can be fatal within minutes."
}
},
{
@@ -274,27 +274,12 @@
SunScope organises its columns into <strong>profiles</strong> — curated sets of data tailored
to different activities and use cases. Rather than showing every column at once, each profile
surfaces the information that actually matters for that situation. You can switch profiles
using the row of buttons above the forecast table. The <strong>Outdoors</strong> profile
includes a sub-dropdown in the Columns bar to choose between Beach, Festival, Events,
Naturist, and Winter Sports. Switch to <strong>Custom</strong> to pick individual columns
yourself.
using the row of buttons above the forecast table. The <strong>Places</strong> profile
includes a sub-dropdown in the Columns bar to choose between Urban, Beach, Events,
Festival, Winter Sports, and Naturist. Everyday and public-good profiles are free;
specialist planning views and Custom columns are part of SunScope Extra.
</p>
<div class="profile-block">
<p class="profile-name">🏙️ Urban</p>
<p>
Designed for anyone moving around a city on foot — commuting, shopping, sightseeing.
The urban environment creates its own microclimate: buildings channel wind into gusts down
narrow streets, concrete absorbs heat all day and radiates it back long after sunset, and
the lack of vegetation means there's no evaporative cooling. The Urban profile shows
<strong>air temperature</strong>, <strong>wind speed and direction</strong> (useful for
finding sheltered routes), <strong>cloud cover</strong>, <strong>UV-A index</strong> and
<strong>burn time</strong> for sun protection, <strong>UTCI+P</strong> for overall felt
comfort, <strong>precipitation</strong>, and <strong>concrete surface temperature</strong>
— the heat radiating up from pavement that standard forecasts completely ignore.
</p>
</div>
<div class="profile-block">
<p class="profile-name">🌾 Farming</p>
<p>
@@ -313,7 +298,7 @@
</div>
<div class="profile-block">
<p class="profile-name">⛵ Sailing</p>
<p class="profile-name">⛵ Sailing · Extra</p>
<p>
Wind is everything on the water, and the conditions out at sea can be dramatically different
from what the shore feels like. The Sailing profile leads with what matters most:
@@ -336,7 +321,10 @@
children or pets, motorhome travellers, and caravan owners. The headline column is
<strong>vehicle interior temperature</strong>: a physics-based estimate of how hot the
cabin gets when parked and sealed, adjusted for your chosen vehicle type (car, MPV, SUV,
motorhome, or caravan). <strong>Wind speed</strong> is included because it matters
motorhome, or caravan). Motorhomes and caravans are treated as insulated occupied living
spaces, with reflective sandwich panels roughly 25–35 mm thick, less sun-exposed glass
than a car, and retained warmth from previous hours, occupants, appliances, and background
heating. <strong>Wind speed</strong> is included because it matters
significantly for high-sided vehicles and caravans. <strong>Cloud cover</strong> and
<strong>air temperature</strong> give context, <strong>precipitation</strong> covers
driving conditions, and <strong>UTCI+P</strong> tells you what it will feel like when
@@ -366,11 +354,22 @@
</div>
<div class="profile-block">
<p class="profile-name">🌤️ Outdoors</p>
<p class="profile-name">🌤️ Places</p>
<p>
A single profile covering five distinct outdoor leisure activities, each with its own
A single profile covering six distinct place and activity contexts, each with its own
tailored column set. Select the activity from the dropdown in the Columns bar after
activating the Outdoors profile.
activating the Places profile. Urban, Beach, and Events are free; Festival, Winter
Sports, and Naturist are part of SunScope Extra.
</p>
<p>
<strong>Urban</strong> — designed for anyone moving around a city on foot: commuting,
shopping, sightseeing. The urban environment creates its own microclimate: buildings
channel wind into gusts down narrow streets, concrete absorbs heat all day and radiates
it back long after sunset, and the lack of vegetation means there's no evaporative
cooling. The Urban variant shows <strong>air temperature</strong>, <strong>wind speed
and direction</strong>, <strong>cloud cover</strong>, <strong>UV-A index</strong>,
<strong>burn time</strong>, <strong>UTCI+P</strong>, <strong>precipitation</strong>,
and <strong>concrete surface temperature</strong>.
</p>
<p>
<strong>Beach</strong> — UV exposure at the coast is significantly higher than inland:
@@ -383,7 +382,7 @@
for day planning.
</p>
<p>
<strong>Festival</strong> — multi-day outdoor events live or die by two things: the
<strong>Festival · Extra</strong> — multi-day outdoor events live or die by two things: the
weather comfort and the state of the ground. The Festival variant focuses on
<strong>UTCI+P</strong> for how cold and wet conditions will actually feel, <strong>wind
speed and direction</strong> for tent and stage exposure, <strong>dew point</strong> for
@@ -402,7 +401,7 @@
— relevant for anyone standing or sitting on sun-exposed hard standing for extended periods.
</p>
<p>
<strong>Naturist</strong> — with no clothing buffer between skin and environment, every
<strong>Naturist · Extra</strong> — with no clothing buffer between skin and environment, every
weather variable matters more. Wind chill at even modest speeds becomes significant, so
both the raw <strong>UTCI</strong> and <strong>UTCI+P</strong> are shown. Both <strong>UV-A
</strong> and <strong>UV-B</strong> are included — full-body UV exposure is a serious
@@ -411,7 +410,7 @@
cover</strong>, and <strong>precipitation</strong>.
</p>
<p>
<strong>Winter Sports</strong> — for skiers, snowboarders, and mountain walkers. UV
<strong>Winter Sports · Extra</strong> — for skiers, snowboarders, and mountain walkers. UV
intensity increases by roughly 10% for every 1,000 m of altitude, and snow reflects up
to 80% of UV back upward — making mountain environments one of the highest-risk UV
exposures outside a solarium. Both <strong>UV-A</strong> and <strong>UV-B</strong> are
@@ -476,7 +475,7 @@
on city surfaces — something the standard UTCI value alone won't tell you.
</p>
<p>
The column is enabled by default in the <strong>Urban</strong> profile and colour-coded:
The column is enabled by default in the <strong>Places → Urban</strong> variant and colour-coded:
values above 30 °C are shown in amber, above 40 °C in red.
</p>
@@ -489,9 +488,10 @@
</p>
<p>
The calculation combines two physical processes. The first is <strong>body panel
conduction</strong>: metal body panels (roof, doors, bonnet) absorb solar radiation and
conduct heat into the cabin regardless of the sun's position in the sky. This is the slow,
relentless background heat that builds even on overcast days. The second is
conduction</strong>: body panels absorb solar radiation and conduct heat into the cabin
regardless of the sun's position in the sky. Thin metal car panels pass much more of this
heat through than the insulated sandwich panels used in many motorhomes and caravans. This
is the slow, relentless background heat that builds even on overcast days. The second is
<strong>side-window solar gain</strong>: when the sun is at an elevation where its rays
cut through the side glass rather than striking the roof or reflecting off at a shallow
angle, additional heat enters the cabin. Because the occupant is modelled as sitting out of
@@ -500,10 +500,13 @@
you heats up steadily while you remain unaware of how hot the environment has become.
</p>
<p>
Wind speed has almost no effect on a sealed vehicle and is not factored in. The figure shown
represents a steady-state cabin temperature reached after approximately 45–60 minutes of
parking. Values above 35 °C are shown in amber (dangerous for children and pets); above
45 °C in red (potentially fatal within minutes).
Wind speed has almost no effect on a sealed vehicle and is not factored in unless the
Ventilation toggle is enabled. For cars, the figure represents the cabin temperature after
roughly 45–60 minutes of parking. For motorhomes and caravans, the model allows for lower
heat gain, slower response from insulated panels, and retained occupied-space warmth, so
the estimate stays much closer to the real living-space temperature on cool or moderate
sunny days. Values above 35 °C are shown in amber (dangerous for children and pets);
above 45 °C in red (potentially fatal within minutes).
</p>
<h2>Reading the stress bands</h2>
@@ -546,7 +549,7 @@
<details class="faq-block">
<summary class="faq-q">How hot does a car get in the sun?</summary>
<p class="faq-a">A sealed car in direct sunlight can reach cabin temperatures 20–30 °C above outside air temperature within 30–45 minutes. On a 25 °C day with strong sun, cabin air can hit 50–55 °C. SunScope models this hour by hour using the actual solar radiation forecast for your location, accounting for body panel conduction and window solar gain. Select the Vehicle profile and choose your vehicle type to see the estimate. Values above 35 °C are dangerous for children and pets; above 45 °C can be fatal within minutes.</p>
<p class="faq-a">A sealed car in direct sunlight can reach cabin temperatures 20–30 °C above outside air temperature within 30–45 minutes. On a 25 °C day with strong sun, cabin air can hit 50–55 °C. SunScope models this hour by hour using the actual solar radiation forecast for your location, accounting for body panel conduction and window solar gain. Select the Vehicle profile and choose your vehicle type to see the estimate. Motorhomes and caravans use a separate insulated occupied-space model, so they warm much less aggressively than cars in heat, but can also stay several degrees warmer than outside air on cool sunny days. Values above 35 °C are dangerous for children and pets; above 45 °C can be fatal within minutes.</p>
</details>
<details class="faq-block">