As of 18:17 BST

Weather in Carrickfergus

+12°

Carrickfergus, Wednesday, 7 October, 18:17

Clear sky. Feels like 11°C. High 13°C, low 6°C.

Pressure1017 mb

Wind12 mph NW

Humidity73%

Visibility6.2 mi

Dew point7°C

Detailed hourly forecast

The month ahead in Carrickfergus: daytime temperatures averaging +12.6° and +7° overnight — that is 0.1° below the climate average for October. Rain is expected on 10 days (around 60 mm), against a normal of 8 days and 56 mm. The warmest day should be 12 October (+16.3°), the coolest 8 October (+3.2°).

+12.6°/+7°

Average day / night

−0.1°

Below average

10 / 8

Wet days / normal

60 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+13.5°	+13.1°	+0.4°
17 October – 26 October	+11.1°	+12.1°	-0.9°
27 October – 5 November	near average	+11.2°	—

October records over 66 years

+20.5°9 October 2023All-time high

+1°30 October 2018All-time low

Thu, 08+3 ° /13 °

7.4

+13 °

Carrickfergus, Thursday, 8 October

Rain. High 13°C, low 3°C.

Pressure1022 mb

Wind8 mph W

Humidity73%

Visibility6.2 mi

Dew point7°C

Fri, 09+10 ° /13 °

4.7

+13 °

Carrickfergus, Friday, 9 October

Rain. High 13°C, low 10°C.

Pressure1006 mb

Wind16 mph W

Humidity81%

Visibility6.2 mi

Dew point9°C

Sat, 10+8 ° /11 °

0.6

+11 °

Carrickfergus, Saturday, 10 October

Light rain. High 11°C, low 8°C.

Pressure1007 mb

Wind20 mph W

Humidity70%

Visibility6.2 mi

Dew point6°C

Sun, 11+7 ° /12 °

0.2

+12 °

Carrickfergus, Sunday, 11 October

Light rain. High 12°C, low 7°C.

Pressure1013 mb

Wind4 mph W

Humidity77%

Visibility6.2 mi

Dew point7°C

Mon, 12+10 ° /16 °

3.4

+16 °

Carrickfergus, Monday, 12 October

Light rain. High 16°C, low 10°C.

Pressure1004 mb

Wind16 mph SE

Humidity98%

Visibility—

Dew point14°C

Tue, 13+10 ° /16 °

+16 °

Carrickfergus, Tuesday, 13 October

Light rain. High 16°C, low 10°C.

Pressure1018 mb

Wind17 mph SW

Humidity75%

Visibility—

Dew point9°C

Wed, 14+10 ° /16 °

+16 °

Carrickfergus, Wednesday, 14 October

Overcast. High 16°C, low 10°C.

Pressure1024 mb

Wind16 mph SW

Humidity73%

Visibility—

Dew point10°C

Thu, 15+7 ° /14 °

3.5

+14 °

Carrickfergus, Thursday, 15 October

Rain. High 14°C, low 7°C.

Pressure1015 mb

Wind21 mph S

Humidity74%

Visibility—

Dew point8°C

Fri, 16+6 ° /12 °

+12 °

Carrickfergus, Friday, 16 October

Overcast. High 12°C, low 6°C.

Pressure1022 mb

Wind12 mph SW

Humidity72%

Visibility—

Dew point6°C

Sat, 17+7 ° /11 °

2.3

+11 °

Carrickfergus, Saturday, 17 October

Light rain. High 11°C, low 7°C.

Pressure1009 mb

Wind19 mph S

Humidity70%

Visibility—

Dew point5°C

Sun, 18+5 ° /13 °

10.8

+13 °

Carrickfergus, Sunday, 18 October

Rain. High 13°C, low 5°C.

Pressure1007 mb

Wind30 mph SE

Humidity60%

Visibility—

Dew point3°C

Mon, 19+7 ° /11 °

5.8

+11 °

Carrickfergus, Monday, 19 October

Rain. High 11°C, low 7°C.

Pressure986 mb

Wind27 mph SW

Humidity81%

Visibility—

Dew point6°C

Tue, 20+5 ° /10 °

1.1

+10 °

Carrickfergus, Tuesday, 20 October

Light rain. High 10°C, low 5°C.

Pressure990 mb

Wind18 mph S

Humidity63%

Visibility—

Dew point3°C

Wed, 21+5 ° /9 °

0.3

+9 °

Carrickfergus, Wednesday, 21 October

Light rain. High 9°C, low 5°C.

Pressure1002 mb

Wind17 mph SW

Humidity75%

Visibility—

Dew point5°C

Thu, 22+5 ° /13 °

16.6

+13 °

Carrickfergus, Thursday, 22 October

Rain. High 13°C, low 5°C.

Pressure1001 mb

Wind26 mph SE

Humidity81%

Visibility—

Dew point8°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+9 ° /12 °

3.1

+12 °

Carrickfergus, Friday, 23 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low9°C

Average rainfall3.1 mm

Chance of rain60%

Warmest on record+16° (1971)

Coldest on record+3° (1987)

Sat, 24+9 ° /12 °

4.6

+12 °

Carrickfergus, Saturday, 24 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low9°C

Average rainfall4.6 mm

Chance of rain50%

Warmest on record+16° (2005)

Coldest on record+3° (1987)

Sun, 25+8 ° /12 °

3.6

+12 °

Carrickfergus, Sunday, 25 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall3.6 mm

Chance of rain53%

Warmest on record+16° (1969)

Coldest on record+3° (2019)

Mon, 26+8 ° /12 °

3.2

+12 °

Carrickfergus, Monday, 26 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall3.2 mm

Chance of rain53%

Warmest on record+16° (2021)

Coldest on record+4° (2019)

Tue, 27+9 ° /12 °

4.5

+12 °

Carrickfergus, Tuesday, 27 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low9°C

Average rainfall4.5 mm

Chance of rain62%

Warmest on record+17° (2005)

Coldest on record+4° (1992)

Wed, 28+8 ° /12 °

4.1

+12 °

Carrickfergus, Wednesday, 28 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall4.1 mm

Chance of rain52%

Warmest on record+16° (2009)

Coldest on record+3° (2008)

Thu, 29+8 ° /11 °

3.2

+11 °

Carrickfergus, Thursday, 29 October

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low8°C

Average rainfall3.2 mm

Chance of rain43%

Warmest on record+15° (2005)

Coldest on record+2° (2008)

Fri, 30+8 ° /12 °

3.3

+12 °

Carrickfergus, Friday, 30 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall3.3 mm

Chance of rain53%

Warmest on record+15° (1968)

Coldest on record+1° (2018)

Sat, 31+8 ° /12 °

4.4

+12 °

Carrickfergus, Saturday, 31 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall4.4 mm

Chance of rain53%

Warmest on record+16° (2014)

Coldest on record+3° (1992)

Sun, 01+8 ° /11 °

4.1

+11 °

Carrickfergus, Sunday, 1 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low8°C

Average rainfall4.1 mm

Chance of rain53%

Warmest on record+16° (2007)

Coldest on record+2° (2018)

Mon, 02+8 ° /11 °

3.7

+11 °

Carrickfergus, Monday, 2 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low8°C

Average rainfall3.7 mm

Chance of rain58%

Warmest on record+16° (1971)

Coldest on record+2° (1986)

Tue, 03+7 ° /11 °

2.8

+11 °

Carrickfergus, Tuesday, 3 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low7°C

Average rainfall2.8 mm

Chance of rain48%

Warmest on record+16° (1979)

Coldest on record+2° (1966)

Wed, 04+7 ° /11 °

2.7

+11 °

Carrickfergus, Wednesday, 4 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low7°C

Average rainfall2.7 mm

Chance of rain48%

Warmest on record+15° (1978)

Coldest on record+1° (1968)

Thu, 05+7 ° /11 °

2.9

+11 °

Carrickfergus, Thursday, 5 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low7°C

Average rainfall2.9 mm

Chance of rain47%

Warmest on record+16° (2025)

Coldest on record+3° (2000)

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Carrickfergus are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Carrickfergus since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.