Derry weather by month & the best time to visit
🇬🇧 United Kingdom · small town · oceanic / maritime climate
The best time to visit Derry is July — its sunniest month (Sunshine Score 55/100), with August and September close behind. Derry averages about 1,326 hours of sunshine a year. Daytime highs around 18°C / 64°F and roughly 109 mm of rain in July.
Jump to: month-by-month table · nearby alternatives · embed this data
- Sun hours / year
- 1,326
- Sunniest month
- July
- Peak score
- 55/100
- Rain / year
- 1,198 mm
- Midday UV at peak
- 4 (moderate)
- Population
- 84k
- Elevation
- Sea level

When is the best time to visit Derry?
For sunshine, the best time to visit Derry is July, then August and September. The dullest month is January (0/100, 110 mm of rain). The full month-by-month picture is in the table below.
How sunny is Derry?
Derry isn't a sunny place by world standards: about 1,326 hours of sunshine a year. 55 Sunshine Score points separate July (55) from January (0), so the month you pick matters. It ranks #26 of 48 destinations in United Kingdom for annual sunshine, below the national median of 1,345 hours. The year's 1,198 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 7° / 45°F | 4° / 39°F | 110 mm | 0 |
| February | 0 | 7° / 45°F | 3° / 37°F | 86 mm | 1 |
| March | 6 | 9° / 48°F | 4° / 39°F | 84 mm | 1 |
| April | 18 | 11° / 52°F | 6° / 43°F | 69 mm | 3 |
| May | 35 | 14° / 57°F | 8° / 46°F | 86 mm | 4 |
| June | 45 | 16° / 61°F | 11° / 52°F | 97 mm | 4 |
| July | 55 | 18° / 64°F | 12° / 54°F | 109 mm | 4 |
| August | 48 | 17° / 63°F | 12° / 54°F | 117 mm | 3 |
| September | 46 | 16° / 61°F | 11° / 52°F | 92 mm | 2 |
| October | 27 | 13° / 55°F | 8° / 46°F | 119 mm | 1 |
| November | 11 | 10° / 50°F | 6° / 43°F | 117 mm | 0 |
| December | 0 | 8° / 46°F | 4° / 39°F | 112 mm | 0 |
See Derry on the interactive sunshine globe →
Nearby places for sunshine
- Belfast United Kingdom · 74 km · best in Jul · 1,263 h sun/yr
- Charlestown Ireland · 165 km · best in Jul · 1,412 h sun/yr
- Glasgow United Kingdom · 171 km · best in Jul · 1,304 h sun/yr
- Dublin Ireland · 189 km · best in Jul · 1,488 h sun/yr
- Glasgow United Kingdom · 195 km · best in Jul · 1,306 h sun/yr
- Castletown Isle of Man · 195 km · best in Jul · 1,459 h sun/yr
Nearest destinations
- Donegal Ireland · 75 km · 1,424 h sun/yr · best in Jul
- Isle of Islay, Argyll and Bute United Kingdom · 91 km · 1,329 h sun/yr · best in Jul
- Campbeltown United Kingdom · 103 km · 1,303 h sun/yr · best in Jul
- Colonsay United Kingdom · 127 km · 1,375 h sun/yr · best in Jul
- Balemartine, Argyll and Bute United Kingdom · 163 km · 1,378 h sun/yr · best in Aug
Put the Derry sunshine badge on your site
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