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.
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 |
Nearest destinations
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Derry: questions and answers
What kind of destination is Derry?
Derry is a small town in United Kingdom with a oceanic / maritime climate.
How many hours of sunshine does Derry get a year?
Derry gets about 1,326 hours of sunshine a year, at its best around July.
When is the best time to visit Derry?
The sunniest time to visit Derry is July, when the Sunshine Score peaks at 55/100 (with August and September close behind). Expect daytime highs around 18°C / 64°F.
What is the least sunny month in Derry?
January is the least sunny month in Derry, scoring 0/100 with about 110 mm of rain.
How strong is the sun in Derry?
The typical midday UV index in Derry peaks around 4 (moderate) in May, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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