Which is the warmest month in Ballycastle?

The warmest time of year in Ballycastle is normally July. Expect maximum daytime temperatures to reach 17°C.

Which month has the most rain in Ballycastle?

In terms of rainfall, October is usually the wettest month in Ballycastle with 128mm on average. There are normally 21 days in October with some rain.

When is it sunniest in Ballycastle?

The sunniest time of year in Ballycastle is normally May with bright sunshine on average for 36% of daylight hours; that's 6 hours of sunshine per day.

When is the sea warmest in Ballycastle?

The sea is usually at its warmest in Ballycastle in September when the water temperature reaches 14°C.

Best time to visit Ballycastle

Q: When is the best time to visit Ballycastle?

The best time to visit Ballycastle is May and June based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Find the best time to visit Ballycastle and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Ballycastle by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Northern Ireland

Interhome: Holiday home finder - best prices

Sale

Explore holiday homes across Europe & USA
Search for best prices based on travel criteria
Filter by price, party size, facilities, property type & more

Go to Interhome deal >>

View all Interhome offers

When is the best time to visit Ballycastle?

The best time to visit Ballycastle is May and June based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0
Mar
1
Apr
1.5
May
1.5
Jun
1
Jul
1
Aug
0
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

7
Jan
7
Feb
8
Mar
10
Apr
13
May
16
Jun
17
Jul
17
Aug
15
Sep
12
Oct
9
Nov
7
Dec

Hours of Sunshine (daily)

1
Jan
2
Feb
3
Mar
5
Apr
6
May
6
Jun
4
Jul
4
Aug
3
Sep
3
Oct
2
Nov
1
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Northern Ireland (Ballycastle) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)