Home
Weather Dublin
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Home / Editor's Pick /

Understanding the app: How to read rain forecasts

08:00
9 May 2023

Understanding the app
How to read rain forecasts

Rainfall warning

A common question we get asked is what does the percentage of rain really mean in a weather app? Well, we’re here to debunk the misconceptions.

It is important to remember that the percentage shows the chance of rain at that time, in your forecast area.

A 30% chance means a 30% chance that it will rain in your forecast area, and a 70% chance that it will stay dry.

When there are showers in the forecast, rather than a solid band of rain, there is a great deal of uncertainty. This is because showers can be extremely localised, forming and dissipating over short time periods.

Often with showers, the chance of precipitation could be fairly low, but the risk could be throughout the entirety of the day.

So, if you’re unsure about whether you’re at risk of catching a shower, stay updated via our WeatherRadar, where you can see where the showers are developing real-time.

Weather & Radar editorial team
More on the topic
Split UK map showing warm orange temperatures up to 26 degrees on the left transitioning to cooler green tones around 3 to 5 degrees on the right, with an arrow indicating change.
Wednesday 8 April 2026

A quick shift

High of the year to a cooler spell
Pink-blossoming cherry trees lining a street next to the weather radar, with sunshine and temperatures around 19 degrees near Bonn.
Weather VideosTuesday 7 April 2026

Cherry blossoms in Bonn

Spring bloom on show
Map showing wind radar data for a tropical storm near New Zealand. A distinct storm centre with high wind speeds. New Zealand lies to the south of the system.
Friday 10 April 2026

Vaianu brings heavy rain

Tropical storm threatens New Zealand
All weather news
This might also interest you
Split image showing strong winds over the UK on a forecast map and widespread rain and snow on a weather radar map.
Tuesday 27 January 2026

Severe gales & heavy rain

Storm Chandra makes impact
plit image showing a double rainbow over a rocky shoreline on the left and sheep grazing in a green field under stormy clouds on the right.
Sunday 2 November 2025

Your weather - Your shots

Mixed conditions on an unsettled week
Split weather map showing UK wind speeds in orange-red shades up to 40 mph on the left and warning levels in green-yellow on the right, with a central wind warning sign.
Wednesday 22 October 2025

Warnings active

Storm Benjamin impacts the UK
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwitteryouTubelinkList