Will it rain in
Derry today?
Live hourly rain forecast and run verdict for Derry, Northern Ireland, UK.
Running in Derry means embracing the north-west of Ireland's wet and windy Atlantic conditions. Whether it's rain sweeping up the Foyle, gusty winds on the historic city walls, or a damp morning through St Columb's Park, knowing whether to head out before you lace up matters. RainOrRun checks live conditions in Derry right now and gives you an instant verdict — plus the best hourly window if the weather's on the fence. We'll also recommend the right gear for whatever Derry's Atlantic-exposed weather is throwing at you today.
What to wear
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How often does it rain in Derry?
Derry records around 1181mm of rain a year, spread across about 206 days — roughly 56% of all days, or 17 days in an average month. That is a genuinely wet climate for running. Rain falls on more days than not in Derry, so the realistic approach is to run in it rather than around it — which makes a breathable waterproof and good grip the two things worth spending on.
The wettest month is August, averaging 126mm across about 20 rainy days. The driest is April, with 71mm over roughly 15 days. Average lows bottom out around 3.2°C in January — long-sleeve and light-glove weather rather than full winter kit. Summer highs peak around 17.4°C in July, comfortable for most daytime running.
Those are ten-year averages, not a forecast. What actually matters on the day is the next twelve hours — which is what the live verdict and hourly strip at the top of this page are for.
| Month | Rainfall | Rainy days | Avg high | Avg low |
|---|---|---|---|---|
| January | 98mm | 17 | 7.3°C | 3.2°C |
| February | 98mm | 17 | 8°C | 3.2°C |
| March | 94mm | 18 | 9.3°C | 3.4°C |
| April | 71mm | 15 | 11.3°C | 4.8°C |
| May | 86mm | 15 | 14.5°C | 7.7°C |
| June | 91mm | 17 | 16.6°C | 10.5°C |
| July | 111mm | 19 | 17.4°C | 11.7°C |
| August | 126mm | 20 | 17.4°C | 11.9°C |
| September | 94mm | 17 | 15.8°C | 10.4°C |
| October | 102mm | 16 | 12.9°C | 8.4°C |
| November | 96mm | 17 | 9.6°C | 5.5°C |
| December | 114mm | 18 | 8.2°C | 4.2°C |
Historical data: Open-Meteo archive, 2015–2024. A “rainy day” means at least 1mm of precipitation.
Running in Derry: common questions
Will it rain in Derry today?
The forecast card at the top of this page shows Derry's rain probability for the current hour, plus an hour-by-hour breakdown for the rest of the day, using live Open-Meteo data. Historically, Derry sees rain on about 206 days a year, so on any given day there is roughly a 56% chance of some rain falling.
Is it a good day to run in Derry?
RainOrRun scores the live Derry forecast on rain probability, rainfall amount, temperature, wind speed and severe weather, then returns a single verdict: Go, Maybe, or Don't Bother. A Maybe means conditions are borderline and it is worth picking your window rather than skipping the run.
What is the best time to run in Derry today?
The hourly strip above highlights the best single window of the day for Derry — the hour combining the lowest rain probability with the most comfortable temperature. You can also check up to eight days ahead using the date picker if you are planning a long run or a race.
What should I wear running in Derry today?
The gear section on this page updates with the live Derry forecast: a waterproof jacket and peaked cap when rain probability goes above 40%, a thermal base layer and gloves below 8 degrees Celsius, and a high-vis vest when wind or low light make you harder to see.
What is the wettest month in Derry?
August is the wettest month in Derry, averaging 126mm of rain across about 20 rainy days. April is the driest, with around 71mm over roughly 15 days. Figures are ten-year averages covering 2015 to 2024.
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