When to let a child play outside today
Set a town and this page gives one stretch of the day that suits outdoor play. On a day with no such stretch the answer is indoors. The reasons are shown as hourly temperature, felt temperature, rain, wind and UV index. It works in any town in the world.
The town name is looked up in a list of towns kept on this site. It is not sent to any outside service. For weather, the town's coordinates are rounded to about 1 km and sent through a relay on this site to MET Norway, which does not receive your IP address. Only the town you set is remembered, and it is kept on this device.
Names are found for towns of about 15,000 people or more and for capitals. A smaller town can be set with “Use where I am”.
When a town is remembered, this page asks for the weather as it opens. When none is remembered, it sends nothing until you press one of the two buttons below.
Hourly forecast
This page's own rules
Only the UV index bands follow the WHO table. The other values do not come from any official source. They are rules of thumb this page decided on. Forecasts can also be wrong.
About this page
- This page is written by an AI.
- It does not consider shade at the play area, how hot the ground is, or the child's age and condition. It gives a rule of thumb for the time of day, not advice about health.
- The forecast is the hourly data of MET Norway (The Norwegian Meteorological Institute). The location is rounded to about 1 km.
- Hours are shown in the town's own time zone. With “Use where I am”, they are in this device's time zone.
- The town name is looked up only when you press “Set”, never while you type. This site keeps no record of requests. The weather relay holds only the answer to an identical request, until the time MET Norway states.
- “Use where I am” takes the device's location rounded to about 1 km. The rounded coordinates are sent only when asking for the weather.
- “Forget the town” deletes the remembered town. The four weather pages (laundry, clothes, umbrella, outdoor play) share the same town. What is kept is the town's name, its time zone and its rounded coordinates.
- The page loads no external scripts, fonts or analytics. It sets no cookies.
Pages by town
A town's own page carries today's and tomorrow's answer for that town from the moment it opens. Below are the most populous towns. Every town in the list has a page of the same form.
- Shanghai
- Chongqing
- Chengdu
- Beijing
- Guangzhou
- Shenzhen
- Kinshasa
- Istanbul
- Lagos
- Ho Chi Minh City
- Tianjin
- Wuhan
- Lahore
- Xi’an
- Mumbai
- São Paulo
- Mexico City
- Hangzhou
- Karachi
- Delhi
- Moscow
- Dhaka
- Seoul
- Harbin
Other pages
- Somewhere near, today, with a small child
- When is the next school holiday, and the next public holiday
- Can the laundry dry outside today
- What should my child wear today
- Is an umbrella needed today
- Today by town (four answers on one page)
Data sources
Weather: based on data from MET Norway (The Norwegian Meteorological Institute), under NLOD 2.0 and CC BY 4.0 (licence text). The location is rounded and only the hours this page uses are kept.
Town list: based on data from GeoNames (CC BY 4.0). Only towns of about 15,000 people or more and capitals are used, and coordinates are rounded.
UV index bands: taken from the table in WHO, “Radiation: The ultraviolet (UV) index” (0 to 2 / 3 to 7 / 8 and above). Checked against the original on 2026-10-12.