As of 00:31 BST

Weather in Belfast

+7°

Belfast, Wednesday, 7 October, 00:31

Overcast. Feels like 6°C. High 12°C, low 7°C.

Pressure1019 mb

Wind3 mph S

Humidity94%

Visibility6.2 mi

Dew point6°C

Detailed hourly forecast

The month ahead in Belfast: daytime temperatures averaging +14.1° and +8.6° overnight — that is 1.3° above the climate average for October. Rain is expected on 10 days (around 31 mm), against a normal of 8 days and 55 mm. The warmest day should be 21 October (+18.6°), the coolest 17 October (+4.8°).

+14.1°/+8.6°

Average day / night

+1.3°

Above average

10 / 8

Wet days / normal

31 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+13.6°	+13.2°	+0.4°
17 October – 26 October	+15°	+12.2°	+2.8°
27 October – 5 November	near average	+11.3°	—

October records over 66 years

+20.4°9 October 2023All-time high

+1°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Holywood (7 km away).

Thu, 08+6 ° /14 °

4.1

+14 °

Belfast, Thursday, 8 October

Rain. High 14°C, low 6°C.

Pressure1023 mb

Wind7 mph W

Humidity74%

Visibility6.2 mi

Dew point7°C

Fri, 09+10 ° /14 °

3.3

+14 °

Belfast, Friday, 9 October

Light rain. High 14°C, low 10°C.

Pressure1007 mb

Wind15 mph W

Humidity82%

Visibility6.2 mi

Dew point8°C

Sat, 10+9 ° /12 °

+12 °

Belfast, Saturday, 10 October

Partly cloudy. High 12°C, low 9°C.

Pressure1008 mb

Wind18 mph W

Humidity71%

Visibility6.2 mi

Dew point6°C

Sun, 11+7 ° /12 °

+12 °

Belfast, Sunday, 11 October

Overcast. High 12°C, low 7°C.

Pressure1014 mb

Wind10 mph W

Humidity67%

Visibility—

Dew point5°C

Mon, 12+11 ° /17 °

1.6

+17 °

Belfast, Monday, 12 October

Light rain. High 17°C, low 11°C.

Pressure1007 mb

Wind15 mph SE

Humidity95%

Visibility—

Dew point14°C

Tue, 13+10 ° /17 °

3.6

+17 °

Belfast, Tuesday, 13 October

Light rain. High 17°C, low 10°C.

Pressure1017 mb

Wind17 mph S

Humidity74%

Visibility—

Dew point9°C

Wed, 14+9 ° /12 °

2.4

+12 °

Belfast, Wednesday, 14 October

Light rain. High 12°C, low 9°C.

Pressure1019 mb

Wind17 mph SW

Humidity91%

Visibility—

Dew point10°C

Thu, 15+7 ° /14 °

4.4

+14 °

Belfast, Thursday, 15 October

Rain. High 14°C, low 7°C.

Pressure1014 mb

Wind25 mph SW

Humidity73%

Visibility—

Dew point8°C

Fri, 16+6 ° /12 °

1.4

+12 °

Belfast, Friday, 16 October

Light rain. High 12°C, low 6°C.

Pressure995 mb

Wind20 mph SW

Humidity71%

Visibility—

Dew point6°C

Sat, 17+5 ° /10 °

2.4

+10 °

Belfast, Saturday, 17 October

Light rain. High 10°C, low 5°C.

Pressure1002 mb

Wind19 mph W

Humidity75%

Visibility—

Dew point5°C

Sun, 18+6 ° /13 °

0.3

+13 °

Belfast, Sunday, 18 October

Light rain. High 13°C, low 6°C.

Pressure1009 mb

Wind20 mph SW

Humidity87%

Visibility—

Dew point9°C

Mon, 19+10 ° /14 °

3.9

+14 °

Belfast, Monday, 19 October

Light rain. High 14°C, low 10°C.

Pressure1014 mb

Wind19 mph SW

Humidity91%

Visibility—

Dew point11°C

Tue, 20+12 ° /17 °

3.8

+17 °

Belfast, Tuesday, 20 October

Light rain. High 17°C, low 12°C.

Pressure1018 mb

Wind13 mph SW

Humidity86%

Visibility—

Dew point14°C

Wed, 21+12 ° /19 °

+19 °

Belfast, Wednesday, 21 October

Overcast. High 19°C, low 12°C.

Pressure1021 mb

Wind15 mph S

Humidity81%

Visibility—

Dew point15°C

Thu, 22+11 ° /18 °

+18 °

Belfast, Thursday, 22 October

Mainly clear. High 18°C, low 11°C.

Pressure1020 mb

Wind10 mph S

Humidity74%

Visibility—

Dew point12°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+9 ° /12 °

+12 °

Belfast, Friday, 23 October

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

Average high12°C

Average low9°C

Average rainfall3 mm

Chance of rain60%

Warmest on record+16° (1971)

Coldest on record+3° (1987)

Sat, 24+9 ° /12 °

4.7

+12 °

Belfast, Saturday, 24 October

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

Average high12°C

Average low9°C

Average rainfall4.7 mm

Chance of rain48%

Warmest on record+16° (2005)

Coldest on record+3° (1987)

Sun, 25+8 ° /12 °

3.6

+12 °

Belfast, 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+2° (2019)

Mon, 26+8 ° /12 °

3.2

+12 °

Belfast, 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 rain55%

Warmest on record+16° (2005)

Coldest on record+3° (2019)

Tue, 27+9 ° /12 °

4.4

+12 °

Belfast, Tuesday, 27 October

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

Average high12°C

Average low9°C

Average rainfall4.4 mm

Chance of rain62%

Warmest on record+17° (2005)

Coldest on record+4° (2018)

Wed, 28+8 ° /12 °

4.1

+12 °

Belfast, 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+2° (2018)

Thu, 29+8 ° /11 °

3.2

+11 °

Belfast, 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° (2018)

Fri, 30+8 ° /12 °

3.3

+12 °

Belfast, 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 rain55%

Warmest on record+16° (1968)

Coldest on record+1° (2018)

Sat, 31+8 ° /12 °

4.4

+12 °

Belfast, 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 °

Belfast, 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+1° (2018)

Mon, 02+8 ° /11 °

3.7

+11 °

Belfast, 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+1° (2018)

Tue, 03+7 ° /11 °

2.8

+11 °

Belfast, 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 °

Belfast, 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 rain47%

Warmest on record+16° (1978)

Coldest on record+1° (1968)

Thu, 05+7 ° /11 °

2.9

+11 °

Belfast, 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+15° (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 Belfast 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 Belfast 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.