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CheckWeather UK›Derry›Best time to visit

The best time to visit Derry

Month-by-month climate averages for Derry, Northern Ireland, so you can pick your dates on data rather than guesswork.

Short answer

The most comfortable time to visit Derry is usually May, June, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest December rain is behind you.

Derry is warmest in June (highs near 18°C) and coldest in January (lows around 3°C), with roughly 1200 mm of precipitation across the year and December the wettest month. The sweet spot for most visitors is May, June, July and August.

These are long-run averages. For the actual days you are travelling, check the live Derry forecast — and note how much the models agree, because that tells you how much to trust it.

Derry weather by month

what to expect in Derry through the year

Here is Derry's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Derry by season.

Jan
7°
3°
Cold
Feb
9°
4°
Cool
Mar
9°
4°
Cool
Apr
12°
5°
Cool
May
16°
9°
Mild
Jun
18°
11°
Mild
Jul
17°
11°
Mild
Aug
17°
12°
Mild
Sep
17°
10°
Mild
Oct
13°
9°
Cool
Nov
10°
5°
Cool
Dec
9°
5°
Cool
Wettest

Common questions

When is the best time to visit Derry?
The most comfortable time to visit Derry is usually May, June, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest December rain is behind you.
What is the warmest month in Derry?
June is the warmest month in Derry, averaging highs near 18°C.
What is the coldest month in Derry?
January is the coldest month in Derry, with lows around 3°C.
When is the rainy season in Derry?
The wettest month in Derry is usually December, out of roughly 1200 mm of precipitation across the year.

Derry month by month

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember