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9-Day Weather Forecast: Feels-Like, UV and Sun Times

9-day weather forecast for 170,000 towns or your position: temperature, feels-like, rain, wind, clear-sky UV index, sunrise and sunset.

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Before a walk, a load of washing on the line or choosing what the children wear, you want to know the weather where you'll be. Pick one of the 170,943 towns in the database, or share your position, rounded to about a kilometre in your browser: the page shows the forecast of MET Norway, the Norwegian Meteorological Institute, which covers the whole world. A little over two days read hour by hour, then in six-hour blocks up to nine days: temperature, the feels-like temperature computed by MET Norway, expected rain, wind, and gusts where they are published. A second tab gives the clear-sky UV index for today and tomorrow, a third the sunrise, sunset and twilight for the date of your choice, calculated without any network request, daylight saving time included.

How to use it

  1. In “Country”, keep the suggested country or pick another, then type the first letters of your town in “Town or city” and click the right line; “Use my location” takes your position instead, rounded before anything is sent.
  2. The “Forecast” tab opens on “Now”: temperature, feels-like, wind, humidity, pressure and the hour's rain. Scroll “Next 24 hours” to the right, then move down to “Day by day” for the following nine days.
  3. Under “Units”, switch from degrees Celsius and kilometres per hour to degrees Fahrenheit and miles per hour; rain stays in millimetres and pressure in hectopascals.
  4. Open “UV index” to see today's and tomorrow's curve, the highest value expected and the protection the WHO recommends for its category.
  5. Open “Sun”, pick a date or go back with “Today”: sunrise, sunset, solar noon, civil dawn and dusk and day length appear in the place's local time.

How the tool gets the forecast

Your browser never contacts MET Norway. It rounds the place to a hundredth of a degree, about 1.1 km of latitude, and sends it to our server, which rejects any finer coordinate. The server asks MET Norway's Locationforecast 2.0 service for the complete forecast, identifying itself as OneKitly, and sends back only what the page displays: for Paris, 4,527 bytes instead of the 60,046 of the original response.

MET Norway says how long each forecast stays valid, usually half an hour. Until then our server keeps it and the delivery network serves it without asking again. If MET Norway stops answering, the last forecast read stays on screen for six hours at most, with the time of its update, rather than an empty page.

The feels-like value is the apparent temperature MET Norway publishes for each hour; the tool does not recompute it. The day-by-day summaries are computed in your browser in the place's time zone: minimum and maximum, total rain and the most representative symbol of the day. Sun times come from an astronomical calculation run on your device.

When to use it

  • Picking the slot for a bike ride or a hike by spotting the dry hours and the lightest wind.
  • Deciding whether sunscreen is needed at midday: the clear-sky UV index gives the highest level reached if the sky clears.
  • Getting ready for a trip by comparing the nine-day trend in the town you are travelling to.
  • Timing a sunrise photo or an evening outing with the civil twilight times.
  • Checking, while travelling, when the sun sets at your destination, in the local time there rather than yours.

Examples from the forecast of 15 September 2026

In Paris, the forecast read on 15 September 2026 at 21:13 announced a temperature between 13.9 °C and 22.4 °C for the next 24 hours, with no rain expected.

That evening, the highest clear-sky UV index expected was 4.5 in Paris around 2 p.m. on 17 September (moderate), 7.0 in Sydney at noon on 18 September (high) and 1.2 in Tromsø at noon on 16 September (low).

On 25 October 2026, the day clocks go back, the Sun tab gives Paris a sunrise at 07:26, a sunset at 17:42 and solar noon at 12:34, the same minutes as MET Norway's Sunrise 3.0 service.

Limits to know

  • A forecast describes the most likely weather over a model grid cell several kilometres wide: an isolated shower, a local thunderstorm or valley fog can slip through it.
  • Reliability falls with lead time: beyond three or four days, read the trend rather than the exact hour of a shower.
  • The UV index is the clear-sky value, supplied for a little over two days; under cloud the real index is often lower.
  • The chance of rain, the chance of thunder and gusts are published by MET Norway only in the Nordic area covered by its regional model; elsewhere the tool does not make them up.
  • This is not a warning service: for an official warning about storms, heat or floods, check your country's weather service.
  • Sun times assume a clear horizon; hills or buildings delay the visible sunrise and bring the visible sunset forward.

Privacy

Processed on a server

The place you choose goes to our server rounded to a hundredth of a degree, about 1 km; your position is asked for only when you click “Use my location”, rounded in your browser and never kept. Our server passes that point to MET Norway, the Norwegian Meteorological Institute, which sees our server's address, never yours. The last town you picked stays in your browser's local storage (allin_tools), shared with the sunrise and sunset calculator. To prevent abuse, a counter keeps a fingerprint derived from your IP address rather than the address itself. The delivery network keeps a point's forecast for half an hour at most, and nothing is logged. Usage measurement records that a forecast was shown or failed, never the place.

Frequently asked questions

Where does this weather forecast come from?

From MET Norway, the Norwegian Meteorological Institute, which publishes forecasts for the whole world free of charge under the CC BY 4.0 licence. Our server reads its Locationforecast 2.0 service and shows its values as they are, rounded for the screen; only the daily summaries and the sun times are computed by OneKitly.

Why is the feels-like temperature different from the temperature?

Because wind and humidity change how much heat your body loses or keeps. The value shown is the apparent temperature MET Norway computes for each hour: in a cold wind it drops below the air temperature, and in hot, humid weather it rises above it.

Why does the UV index stop after two days?

MET Norway publishes the UV index only for a little over two days, and only for a clear sky. The curve stops where the source stops, and the tool says so instead of stretching a value it does not have.

Is my position sent to MET Norway?

Not your exact position. Your browser rounds it to a hundredth of a degree before sending it to our server, which alone asks MET Norway: the institute receives that rounded point and our server's address, never your IP address. The position is not kept anywhere.

How often is the forecast updated?

MET Norway recalculates its forecasts several times a day and gives each response a validity period, often half an hour. The page asks for the forecast again once that period is over, and always shows the time of the latest update.

Can I rely on a nine-day forecast?

For a trend, yes; for an exact hour, no. Uncertainty grows with lead time: the first two days, detailed hour by hour, are the most reliable, and beyond three or four days it is better to compare days with each other than to trust a shower announced for 3 p.m.

Do sunrise and sunset times account for daylight saving time?

Yes. They are computed in the time zone of the chosen town, with its daylight saving rules: on 25 October 2026 in Paris, the day the clocks change, the tool gives 07:26 and 17:42, like MET Norway's Sunrise 3.0 service.

Why can't I see the chance of rain?

MET Norway publishes it only in the Nordic area covered by its regional model, around Scandinavia. Elsewhere the page shows the expected amount of rain in millimetres, without an invented probability.

Further reading

All guides →
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