Climate of Castlerock

Castlerock has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Castlerock is 11° degrees and there is about 515 mm of rain in a year. It is dry for 87 days a year with an average humidity of 84% and an UV-index of 3.

Climate averages for the whole year

Day: the average daily temperature during the day is between 7°C and 16°C
Night:the average nighttime temperature is between 4°C and 12°C
Sea temperature: the sea temperature is between 7°C and 18°C
Rain: it rains 230 days and there is a total of approximately 515 mm rainfall
Snow: it snows an average of 7 days per year
Sun hours: throughout the year there are 2071 sun hours

Maximum temperature:	between 7°C and 16°C
Warmest month:	16°C in July
Coldest month:	7°C in January
Night temperature:	between 4°C and 12°C
Sea temperature:	between 7°C and 18°C
Dry days:	128 days
Days with rain:	230 days
Days with snow:	7 days
Total rain sum:	515 mm
Hours of sunshine:	2071 hours

Climate of Castlerock
Temperature graph
Precipitation graph
Climate chart of Castlerock
The best travel time for Castlerock
Climate of Castlerock by month
Experiences with the weather of Castlerock

Do you want to go to Castlerock?

These are the travel companies where you can book a trip to Castlerock:

Booking.com

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Castlerock.

Precipitation graph

This graph shows the average amount of rainfall per month for Castlerock.

Climate table of Castlerock

In this climate table you can see at a glance what the average weather per month is for Castlerock. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Castlerock might be like in a given month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	7	7	9	10	13	15	16	16	15	13	10	8
Night temp. (°C)	4	4	4	6	8	10	12	12	11	9	7	5
Water temp. (°C)	7	11	14	16	18	16	17	16	14	13	12	11
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	45	37	44	35	37	42	50	50	33	44	50	48
Days with rain	20	16	18	17	18	19	22	24	19	18	19	20
Days with snow	2	2	1	-	-	-	-	-	-	-	-	2
Dry days	9	10	12	13	13	11	9	7	11	13	11	9
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	4	4	5	7	7	9	7	7	6	4	4	4
Wind force (Bft)	4	4	4	4	4	3	3	3	4	4	4	4
UV-index	2	2	3	3	3	4	3	4	4	3	2	2

Best time to visit Castlerock

The best time to visit Castlerock in Northern Ireland is from January through December. In this period you have a very cold temperature and little precipitation. The highest average temperature in Castlerock is 16°C in July and the lowest is 7°C in January. The average water temperature is between 7°C and 18°C.

Climate of Castlerock by month

What is the average climate in a given month for Castlerock? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

January