An outfit for the morning commute may be too warm at lunchtime. Use Whenther’s current weather, hourly forecast and clothing guidance together. This guide explains how to use the website and where its recommendations have limits.

Check the location and observation time

Confirm the selected location and the time printed on the weather card. Observations and forecasts have different issue times. If the information is old or stops updating, check the latest official forecast and warnings before making plans. Nearby neighbourhoods may share a weather observation or forecast point; different place names do not guarantee different temperatures.

Follow the hours you will be outside

If you leave at 8 am and return at 7 pm, find both hours in the forecast, then check any time spent outdoors in between. The daily high can hide a chilly morning, while dressing only for the morning may leave you too warm later.

For a hypothetical forecast of 18°C in the morning and 28°C in the afternoon, a light top with a removable layer can be a starting point. This differs from wearing a heavy coat all day. Adjust for your sensitivity to cold, transport and indoor air conditioning. These numbers are an example, not today’s forecast.

Feels-like temperature is a starting point

The website suggests clothing types by feels-like temperature band, using air temperature when feels-like data is unavailable. Clothing examples are selected by temperature band and insulation constraints. They are references, not complete outfits personalized to your body, wardrobe or taste. Knits and jackets vary in thickness and fabric, so a photograph cannot tell you exactly how warm they will be.

The current feels-like value and the forecast air temperature for your return journey are different measurements. If wind is forecast to increase later, do not assume current comfort will last all day. Spending the day indoors and walking outdoors also call for different adjustments.

Check when rain is expected

A dry current-weather card does not mean you can leave your umbrella behind for the whole day. Check precipitation probability and conditions at departure and return. If rain is expected, consider footwear and clothing that may become uncomfortable when wet. Probability does not describe the fraction of time it will rain or how intense it will be. Official heavy-rain and wind warnings take priority over general clothing tips.

When an example looks wrong

Check the location and observation time.
Distinguish current air temperature, feels-like temperature and the forecast for your outing.
Check fabric, thickness and the layers you will wear together.
Add or remove a layer for your usual comfort and activity level.
Report the location, time and example if it still looks inappropriate.

Temperature alone cannot determine a comfortable outfit for everyone. General web guidance and app personalization use different information. Do not assume that a web example reflects personal information you have not provided.

Sources and next steps

Use location search for the local forecast. Distinguish observations and forecasts based on KMA data from Whenther’s clothing interpretation. Check official forecasts and warnings at KMA and air quality at AirKorea. Send corrections through contact.

How the departure-and-return tool works

Choose departure and return times on a weather detail page. The tool includes both endpoints and shows the lowest and highest available hourly air temperatures and the highest hourly precipitation probability. Future apparent temperatures are unavailable; the tool does not copy the current apparent temperature into future hours.

It suggests considering warm outerwear below 12°C, or a removable layer when the minimum is below 23°C or the temperature range reaches 8°C. Otherwise, light clothing is a starting point. Hours at or above 28°C trigger an additional reminder about removable layers. These are Whenther's general reference rules, not guarantees of individual comfort or safety.

Hours with precipitation probability of at least 40%, or a forecast precipitation type such as rain or snow, are flagged. Below 40% does not mean no rain. Probabilities are not added, and their maximum is not the probability for the entire outing. Missing hours and values are not interpolated or filled with zero. Consider indoor conditions, wind, activity and personal comfort separately.

Sources and methods

WHENTHER

WHENTHER · Content updated: 2026-09-21