Room Temperature & Humidity Tracker
Find out if a room is comfortable, damp or too dry from its temperature and humidity – then log readings for every room, compare with the weather outside and spot problems on a chart.
- Dew point and feels like
- Mould and dry-air warnings
- Multi-room log and chart
- CSV export
Is my room comfortable?
Readings log
No readings yet – add one above, or press “Sample week” to see how it works.
Readings stay in your browser and are only saved if you choose to.
How to track room temperature and humidity
- Check a readingType the temperature and humidity from your thermometer or hygrometer to see the dew point, how warm it feels and whether the room is comfortable.
- Log readings over timeAdd readings with the room name and time – for example morning and evening in the bedroom and bathroom. Add the outdoor weather with one click to compare.
- Spot problemsThe chart and stats show how often each room is in the comfort zone and warn about damp or dry air. Download the log as CSV or save it in this browser.
Comfort ranges at a glance
| Humidity | What it means |
|---|---|
| Below 30% | Dry – static, dry skin, sore throat; common with heaters and air conditioning |
| 30–60% | Healthy and comfortable for most people |
| 60–70% | Humid – feels sticky, dust mites thrive |
| Above 70% | High mould and damp risk if it lasts for days |
Getting accurate readings
- Place the thermometer at chest height, away from windows, heaters, sunlight and outside walls.
- Wait 10–15 minutes after moving it so it can settle.
- Take readings at the same times each day to compare fairly – for example after waking and before bed.
Frequently asked questions
What is the ideal room temperature and humidity?
Most people are comfortable at about 20–26 °C (68–79 °F) with 30–60% relative humidity. Bedrooms are often best slightly cooler, around 18–22 °C. Below 30% the air feels dry; above 60% it feels muggy and mould can start to grow.
What is dew point?
The temperature at which the air’s moisture starts to condense. If a window or wall is colder than the dew point, water collects on it – a common cause of damp and mould. A dew point above about 16 °C feels sticky.
What does “feels like” (heat index) mean?
It combines temperature and humidity into how hot it feels to your body. Humid air makes it harder for sweat to evaporate, so 32 °C at 70% humidity feels like about 40 °C – a level where heat illness becomes a real risk.
How do I reduce humidity in a room?
Open windows or run extractor fans when cooking and showering, dry clothes outside or in a vented dryer, keep furniture away from cold walls, and use a dehumidifier or AC in dry mode during the monsoon.
How do I increase humidity in dry rooms?
Use a humidifier, keep indoor plants, leave bathroom doors open after a shower, or place a bowl of water near a heat source. Aim to get above 30–35%.
Where does the outdoor reading come from?
From Open-Meteo, a free weather service, using the city you type. It’s only requested when you press the button, and only the city name is sent.
Is my log saved?
Only if you press “Save in this browser” – then it stays on this device. Otherwise readings last until you close the page. You can always download them as CSV.
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