How to Make Dark Mode Follow the Weather on Mac

Can macOS switch dark mode based on the weather?

No. macOS offers two native ways to manage dark mode: manually toggling it in System Settings, or scheduling it to switch at sunrise and sunset using the "Auto" appearance option. Neither reacts to weather conditions.

The limitation matters because light conditions on your desk are not driven purely by the time of day. A heavily overcast November afternoon produces a fundamentally different ambient environment than a clear summer afternoon at the same clock time. macOS treats them identically. Weather-aware dark mode fills that gap - and as of April 2026, Solace is the only Mac app that supports it.

macOS's built-in Auto appearance is still useful. If you want to combine sunset-based switching with weather awareness - so dark mode kicks in at dusk on clear days but also activates early on grey ones - Solace handles both in a single app.

How does Solace's weather-aware dark mode work?

Solace uses two data sources to determine when to switch appearance: your device's location and Apple's WeatherKit API. WeatherKit is the same weather engine that powers the Apple Weather app and iOS widgets. It provides condition-level data - clear, partly cloudy, overcast, drizzle, rain, heavy rain, snow, fog - not just a temperature reading.

When weather-aware switching is enabled, Solace checks current conditions on a regular interval in the background. If conditions match your configured triggers, it calls the macOS API to switch appearance. The entire process is on-device: your location coordinates are used only to query WeatherKit and are never transmitted to Solace's own servers. There is no account, no telemetry, and no data collection of any kind.

This approach gives Solace an advantage over apps that rely on third-party weather APIs, which often require an API key, send data to external servers, and introduce additional latency. WeatherKit is baked into macOS Sequoia, so it is fast, private, and requires no setup beyond granting location access once.

What triggers are available?

Solace lets you choose which weather conditions activate dark mode. The available conditions include:

• Overcast - fully overcast sky with no direct sunlight
• Drizzle and light rain - low-intensity precipitation
• Rain - moderate to heavy rainfall
• Snow - snowfall of any intensity
• Fog and mist - reduced visibility conditions
• Thunderstorms - severe weather events

You can enable any combination of these. A common setup is to enable overcast, rain, and snow - the conditions that meaningfully reduce natural light - while leaving partly cloudy days in light mode.

How do you set up weather-based dark mode on Mac?

Setting up weather-aware dark mode in Solace takes under five minutes. Here are the steps:

1. Download and install Solace from theodorehq.com/solace or the Mac App Store.
2. Click the Solace icon in your Mac menu bar to open the app.
3. Open Preferences and navigate to the Scheduling tab.
4. Toggle on "Weather-aware switching".
5. When macOS prompts for location access, click Allow. Solace only uses your location to fetch local weather - it does not store or transmit it.
6. Select which weather conditions should trigger dark mode. Check at minimum overcast and rain for the most noticeable effect.
7. Optionally enable sunset scheduling alongside weather-aware switching, so dark mode also activates at dusk on clear evenings.

Once configured, Solace runs silently in your menu bar and handles appearance switching without any manual intervention. You will see dark mode activate automatically the next time conditions match your chosen triggers.

Which weather conditions trigger dark mode in Solace?

The right configuration depends on how sensitive you want the switching to be. Here is a practical guide to the most useful conditions and when to enable each:

If you want the most responsive setup, enable overcast, rain, snow, fog, and thunderstorms. If you prefer fewer switches and only want dark mode on genuinely dim days, stick to rain and overcast only.

Why does matching your Mac to the weather improve comfort?

The case for weather-based dark mode comes down to ambient light. Your eyes naturally adapt to the surrounding light level. On a bright sunny day, a light-mode screen matches the environment - high brightness and colour temperature on both sides of your retina. On a heavily overcast day, the ambient light level drops significantly while a static light-mode display remains at full brightness, creating a mismatch that causes eye strain over time.

Research supports this pattern. 41% of people switch to dark mode specifically in low-light environments (Gitnux), and 82% of smartphone users globally now use dark mode as their default. The preference for darker interfaces in reduced-light conditions is widespread and well-documented.

Weather-aware switching automates what many users already do manually: switching to dark mode when the day turns grey. Instead of noticing the glare, opening System Settings, and toggling it manually, Solace handles the transition the moment conditions change.

The Seasonal Affective Disorder angle

There is also a more significant wellbeing dimension. Seasonal Affective Disorder (SAD) affects approximately 5% of US adults, according to the American Psychological Association (APA). SAD is characterised by depressive episodes during autumn and winter months, driven largely by reduced natural light exposure. Symptoms are most pronounced on grey, overcast days when light quality is lowest.

Environmental design that aligns with natural light cues - dimmer, warmer displays on dark days rather than a static bright white screen - is consistent with the light-therapy principles used to manage SAD. Weather-aware dark mode is not a clinical intervention, but it is a small environmental adjustment that keeps your screen aligned with the world outside your window rather than working against it.

On grey winter days when the outside world is dim and flat, having your Mac automatically shift into a lower-contrast, lower-brightness dark mode reduces the perceptual gap between your screen and your environment. For the average 7 hours per day people spend looking at screens (DemandSage, 2026), those accumulated adjustments add up.

Combining weather-based dark mode with sunset scheduling

Weather-aware switching and sunset scheduling are complementary, not competing. Weather conditions drive appearance during the day; sunset scheduling handles the transition into evening. In Solace, you can enable both simultaneously.

The practical effect is that your Mac covers all the scenarios where dark mode makes sense:

• Grey daytime hours - dark mode activates automatically when the sky turns overcast or rainy, regardless of the clock
• Evening and night - dark mode activates at local sunset on clear days when weather switching would not trigger
• Clear bright days - light mode remains active until sunset, maintaining colour accuracy and readability

This combination removes almost all the scenarios where you would need to manually toggle appearance. Your Mac adapts to both the time of day and the actual quality of light outside.

To set up sunset-based switching alongside weather-aware switching, enable both options in Solace's Scheduling preferences. Solace uses whichever trigger fires first - so on a rainy afternoon, dark mode activates mid-afternoon due to weather, and on a clear evening, it activates at sunset. Solace returns to light mode the following morning when conditions clear and sunrise has passed.

For a dedicated guide to sunset-based scheduling, including how solar position tracking works and how it compares to fixed clock schedules, see How to Auto-Switch Dark Mode Based on Sunset on Mac.

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