As of 20:27 BST

Weather in Syster

+6°

Syster, Wednesday, 7 October, 20:27

Partly cloudy. Feels like 3°C. High 11°C, low 6°C.

Pressure1014 mb

Wind8 mph W

Humidity87%

Visibility4.9 mi

Dew point4°C

Detailed hourly forecast

The month ahead in Syster: daytime temperatures averaging +11.6° and +7.8° overnight — that is 0.3° above the climate average for October. Rain is expected on 7 days (around 36 mm), against a normal of 8 days and 42 mm. The warmest day should be 14 October (+15.3°), the coolest 22 October (+5.8°).

+11.6°/+7.8°

Average day / night

+0.3°

Above average

7 / 8

Wet days / normal

36 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+12.2°	+11.6°	+0.6°
17 October – 26 October	+10.6°	+10.7°	-0°
27 October – 5 November	near average	+9.9°	—

October records over 66 years

+18.2°1 October 2025All-time high

+0.4°31 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Thurso (15.2 km away).

Thu, 08+7 ° /11 °

6.4

+11 °

Syster, Thursday, 8 October

Rain. High 11°C, low 7°C.

Pressure1018 mb

Wind7 mph NW

Humidity68%

Visibility6.2 mi

Dew point5°C

Fri, 09+8 ° /12 °

8.8

+12 °

Syster, Friday, 9 October

Heavy rain. High 12°C, low 8°C.

Pressure996 mb

Wind19 mph W

Humidity82%

Visibility6.2 mi

Dew point8°C

Sat, 10+8 ° /11 °

6.5

+11 °

Syster, Saturday, 10 October

Light rain. High 11°C, low 8°C.

Pressure995 mb

Wind13 mph NW

Humidity81%

Visibility6.2 mi

Dew point7°C

Sun, 11+8 ° /11 °

2.1

+11 °

Syster, Sunday, 11 October

Light rain. High 11°C, low 8°C.

Pressure1010 mb

Wind14 mph NW

Humidity69%

Visibility6.2 mi

Dew point5°C

Mon, 12+6 ° /13 °

+13 °

Syster, Monday, 12 October

Rain. High 13°C, low 6°C.

Pressure1003 mb

Wind22 mph S

Humidity88%

Visibility—

Dew point9°C

Tue, 13+9 ° /13 °

3.3

+13 °

Syster, Tuesday, 13 October

Light rain. High 13°C, low 9°C.

Pressure1011 mb

Wind23 mph W

Humidity74%

Visibility—

Dew point8°C

Wed, 14+10 ° /15 °

+15 °

Syster, Wednesday, 14 October

Overcast. High 15°C, low 10°C.

Pressure1015 mb

Wind23 mph SW

Humidity73%

Visibility—

Dew point10°C

Thu, 15+9 ° /14 °

0.6

+14 °

Syster, Thursday, 15 October

Light rain. High 14°C, low 9°C.

Pressure1006 mb

Wind23 mph SW

Humidity71%

Visibility—

Dew point7°C

Fri, 16+8 ° /11 °

0.4

+11 °

Syster, Friday, 16 October

Light rain. High 11°C, low 8°C.

Pressure1015 mb

Wind23 mph SW

Humidity70%

Visibility—

Dew point6°C

Sat, 17+8 ° /11 °

0.6

+11 °

Syster, Saturday, 17 October

Light rain. High 11°C, low 8°C.

Pressure1002 mb

Wind23 mph S

Humidity70%

Visibility—

Dew point4°C

Sun, 18+7 ° /10 °

+10 °

Syster, Sunday, 18 October

Overcast. High 10°C, low 7°C.

Pressure1007 mb

Wind31 mph SE

Humidity64%

Visibility—

Dew point4°C

Mon, 19+10 ° /12 °

+12 °

Syster, Monday, 19 October

Light rain. High 12°C, low 10°C.

Pressure981 mb

Wind37 mph SE

Humidity64%

Visibility—

Dew point5°C

Tue, 20+8 ° /10 °

+10 °

Syster, Tuesday, 20 October

Overcast. High 10°C, low 8°C.

Pressure988 mb

Wind27 mph S

Humidity61%

Visibility—

Dew point2°C

Wed, 21+7 ° /10 °

+10 °

Syster, Wednesday, 21 October

Mainly clear. High 10°C, low 7°C.

Pressure995 mb

Wind17 mph S

Humidity62%

Visibility—

Dew point3°C

Thu, 22+6 ° /10 °

+10 °

Syster, Thursday, 22 October

Mainly clear. High 10°C, low 6°C.

Pressure1003 mb

Wind27 mph SE

Humidity64%

Visibility—

Dew point3°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+8 ° /11 °

3.1

+11 °

Syster, Friday, 23 October

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

Average high11°C

Average low8°C

Average rainfall3.1 mm

Chance of rain57%

Warmest on record+15° (1996)

Coldest on record+3° (1964)

Sat, 24+8 ° /11 °

2.1

+11 °

Syster, Saturday, 24 October

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

Average high11°C

Average low8°C

Average rainfall2.1 mm

Chance of rain45%

Warmest on record+15° (1995)

Coldest on record+3° (2002)

Sun, 25+7 ° /11 °

2.9

+11 °

Syster, Sunday, 25 October

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

Average high11°C

Average low7°C

Average rainfall2.9 mm

Chance of rain50%

Warmest on record+16° (1975)

Coldest on record+1° (1992)

Mon, 26+7 ° /11 °

3.6

+11 °

Syster, Monday, 26 October

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

Average high11°C

Average low7°C

Average rainfall3.6 mm

Chance of rain58%

Warmest on record+15° (2022)

Coldest on record+1° (1992)

Tue, 27+7 ° /11 °

2.8

+11 °

Syster, Tuesday, 27 October

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

Average high11°C

Average low7°C

Average rainfall2.8 mm

Chance of rain58%

Warmest on record+17° (2005)

Coldest on record+3° (1970)

Wed, 28+7 ° /10 °

3.4

+10 °

Syster, Wednesday, 28 October

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

Average high10°C

Average low7°C

Average rainfall3.4 mm

Chance of rain67%

Warmest on record+16° (2005)

Coldest on record+1° (2008)

Thu, 29+7 ° /10 °

2.7

+10 °

Syster, Thursday, 29 October

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

Average high10°C

Average low7°C

Average rainfall2.7 mm

Chance of rain47%

Warmest on record+14° (1975)

Coldest on record+3° (1988)

Fri, 30+7 ° /10 °

3.3

+10 °

Syster, Friday, 30 October

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

Average high10°C

Average low7°C

Average rainfall3.3 mm

Chance of rain52%

Warmest on record+15° (2005)

Coldest on record+1° (2019)

Sat, 31+7 ° /10 °

3.4

+10 °

Syster, Saturday, 31 October

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

Average high10°C

Average low7°C

Average rainfall3.4 mm

Chance of rain60%

Warmest on record+16° (2011)

Coldest on record+0° (2018)

Sun, 01+7 ° /10 °

+10 °

Syster, Sunday, 1 November

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

Average high10°C

Average low7°C

Average rainfall3 mm

Chance of rain58%

Warmest on record+14° (1971)

Coldest on record+2° (2012)

Mon, 02+6 ° /10 °

3.2

+10 °

Syster, Monday, 2 November

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

Average high10°C

Average low6°C

Average rainfall3.2 mm

Chance of rain58%

Warmest on record+15° (1971)

Coldest on record+2° (1985)

Tue, 03+7 ° /10 °

3.5

+10 °

Syster, Tuesday, 3 November

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

Average high10°C

Average low7°C

Average rainfall3.5 mm

Chance of rain58%

Warmest on record+15° (2025)

Coldest on record+2° (1985)

Wed, 04+6 ° /9 °

+9 °

Syster, Wednesday, 4 November

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

Average high9°C

Average low6°C

Average rainfall3 mm

Chance of rain50%

Warmest on record+14° (2025)

Coldest on record+1° (1968)

Thu, 05+6 ° /9 °

2.4

+9 °

Syster, Thursday, 5 November

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

Average high9°C

Average low6°C

Average rainfall2.4 mm

Chance of rain55%

Warmest on record+14° (2003)

Coldest on record+2° (2013)

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 Syster 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 Syster 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.