As of 20:36 BST

Weather in Grunasound

+8°

Grunasound, Wednesday, 7 October, 20:36

Mainly clear. Feels like 7°C. High 11°C, low 8°C.

Pressure1013 mb

Wind5 mph N

Humidity88%

Visibility6.2 mi

Dew point6°C

Detailed hourly forecast

The month ahead in Grunasound: daytime temperatures averaging +11.3° and +9.3° overnight — that is 0.9° above the climate average for October. Rain is expected on 10 days (around 51 mm), against a normal of 9 days and 53 mm. The warmest day should be 14 October (+13.2°), the coolest 8 October (+7.1°).

+11.3°/+9.3°

Average day / night

+0.9°

Above average

10 / 9

Wet days / normal

51 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+11.5°	+10.6°	+0.9°
17 October – 26 October	+10.9°	+10°	+0.9°
27 October – 5 November	near average	+9.5°	—

October records over 66 years

+15.9°6 October 2025All-time high

+1.2°28 October 2008All-time low

Climate averages and records are calculated from the nearest reference point — Lerwick (13 km away).

Thu, 08+7 ° /9 °

+9 °

Grunasound, Thursday, 8 October

Clear sky. High 9°C, low 7°C.

Pressure1017 mb

Wind9 mph N

Humidity63%

Visibility6.2 mi

Dew point2°C

Fri, 09+9 ° /12 °

10.8

+12 °

Grunasound, Friday, 9 October

Rain. High 12°C, low 9°C.

Pressure992 mb

Wind24 mph W

Humidity71%

Visibility6.2 mi

Dew point6°C

Sat, 10+8 ° /11 °

1.7

+11 °

Grunasound, Saturday, 10 October

Light rain. High 11°C, low 8°C.

Pressure994 mb

Wind9 mph NW

Humidity73%

Visibility6.2 mi

Dew point6°C

Sun, 11+8 ° /10 °

+10 °

Grunasound, Sunday, 11 October

Mainly clear. High 10°C, low 8°C.

Pressure1007 mb

Wind13 mph NW

Humidity73%

Visibility6.2 mi

Dew point5°C

Mon, 12+9 ° /12 °

2.5

+12 °

Grunasound, Monday, 12 October

Light rain. High 12°C, low 9°C.

Pressure1006 mb

Wind27 mph S

Humidity78%

Visibility—

Dew point8°C

Tue, 13+10 ° /13 °

9.8

+13 °

Grunasound, Tuesday, 13 October

Rain. High 13°C, low 10°C.

Pressure1007 mb

Wind52 mph NW

Humidity82%

Visibility—

Dew point8°C

Wed, 14+11 ° /13 °

0.4

+13 °

Grunasound, Wednesday, 14 October

Light rain. High 13°C, low 11°C.

Pressure1012 mb

Wind35 mph SW

Humidity88%

Visibility—

Dew point11°C

Thu, 15+10 ° /13 °

0.2

+13 °

Grunasound, Thursday, 15 October

Light rain. High 13°C, low 10°C.

Pressure1003 mb

Wind37 mph S

Humidity76%

Visibility—

Dew point8°C

Fri, 16+10 ° /11 °

3.2

+11 °

Grunasound, Friday, 16 October

Light rain. High 11°C, low 10°C.

Pressure1014 mb

Wind32 mph SW

Humidity81%

Visibility—

Dew point7°C

Sat, 17+10 ° /11 °

+11 °

Grunasound, Saturday, 17 October

Light rain. High 11°C, low 10°C.

Pressure1000 mb

Wind37 mph S

Humidity91%

Visibility—

Dew point9°C

Sun, 18+10 ° /11 °

2.1

+11 °

Grunasound, Sunday, 18 October

Light rain. High 11°C, low 10°C.

Pressure1008 mb

Wind30 mph SE

Humidity78%

Visibility—

Dew point7°C

Mon, 19+11 ° /12 °

8.3

+12 °

Grunasound, Monday, 19 October

Rain. High 12°C, low 11°C.

Pressure984 mb

Wind41 mph SE

Humidity77%

Visibility—

Dew point8°C

Tue, 20+10 ° /10 °

4.5

+10 °

Grunasound, Tuesday, 20 October

Light rain. High 10°C, low 10°C.

Pressure991 mb

Wind33 mph S

Humidity75%

Visibility—

Dew point6°C

Wed, 21+10 ° /11 °

0.3

+11 °

Grunasound, Wednesday, 21 October

Light rain. High 11°C, low 10°C.

Pressure995 mb

Wind23 mph S

Humidity70%

Visibility—

Dew point5°C

Thu, 22+9 ° /10 °

0.6

+10 °

Grunasound, Thursday, 22 October

Light rain. High 10°C, low 9°C.

Pressure1004 mb

Wind26 mph SE

Humidity74%

Visibility—

Dew point6°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+8 ° /10 °

3.5

+10 °

Grunasound, Friday, 23 October

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

Average high10°C

Average low8°C

Average rainfall3.5 mm

Chance of rain65%

Warmest on record+14° (2024)

Coldest on record+4° (1964)

Sat, 24+8 ° /10 °

3.1

+10 °

Grunasound, Saturday, 24 October

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

Average high10°C

Average low8°C

Average rainfall3.1 mm

Chance of rain68%

Warmest on record+13° (1995)

Coldest on record+3° (1964)

Sun, 25+8 ° /10 °

4.3

+10 °

Grunasound, Sunday, 25 October

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

Average high10°C

Average low8°C

Average rainfall4.3 mm

Chance of rain68%

Warmest on record+13° (1975)

Coldest on record+2° (1964)

Mon, 26+8 ° /10 °

5.1

+10 °

Grunasound, Monday, 26 October

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

Average high10°C

Average low8°C

Average rainfall5.1 mm

Chance of rain75%

Warmest on record+13° (2022)

Coldest on record+2° (1962)

Tue, 27+8 ° /10 °

3.9

+10 °

Grunasound, Tuesday, 27 October

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

Average high10°C

Average low8°C

Average rainfall3.9 mm

Chance of rain72%

Warmest on record+13° (2005)

Coldest on record+3° (2008)

Wed, 28+8 ° /10 °

4.1

+10 °

Grunasound, Wednesday, 28 October

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

Average high10°C

Average low8°C

Average rainfall4.1 mm

Chance of rain72%

Warmest on record+14° (2005)

Coldest on record+1° (2008)

Thu, 29+8 ° /10 °

3.7

+10 °

Grunasound, Thursday, 29 October

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

Average high10°C

Average low8°C

Average rainfall3.7 mm

Chance of rain62%

Warmest on record+13° (2010)

Coldest on record+2° (2025)

Fri, 30+8 ° /10 °

3.9

+10 °

Grunasound, Friday, 30 October

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

Average high10°C

Average low8°C

Average rainfall3.9 mm

Chance of rain68%

Warmest on record+13° (2005)

Coldest on record+3° (1968)

Sat, 31+8 ° /10 °

4.8

+10 °

Grunasound, Saturday, 31 October

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

Average high10°C

Average low8°C

Average rainfall4.8 mm

Chance of rain68%

Warmest on record+14° (2015)

Coldest on record+3° (1968)

Sun, 01+7 ° /10 °

+10 °

Grunasound, Sunday, 1 November

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

Average high10°C

Average low7°C

Average rainfall5 mm

Chance of rain78%

Warmest on record+13° (2014)

Coldest on record+2° (2023)

Mon, 02+7 ° /9 °

3.1

+9 °

Grunasound, Monday, 2 November

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

Average high9°C

Average low7°C

Average rainfall3.1 mm

Chance of rain62%

Warmest on record+14° (1971)

Coldest on record+3° (1985)

Tue, 03+8 ° /9 °

+9 °

Grunasound, Tuesday, 3 November

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

Average high9°C

Average low8°C

Average rainfall5 mm

Chance of rain72%

Warmest on record+13° (2025)

Coldest on record+3° (1985)

Wed, 04+7 ° /9 °

4.5

+9 °

Grunasound, Wednesday, 4 November

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

Average high9°C

Average low7°C

Average rainfall4.5 mm

Chance of rain77%

Warmest on record+13° (2025)

Coldest on record+3° (1998)

Thu, 05+7 ° /9 °

3.5

+9 °

Grunasound, Thursday, 5 November

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

Average high9°C

Average low7°C

Average rainfall3.5 mm

Chance of rain60%

Warmest on record+13° (2003)

Coldest on record+3° (1985)

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 Grunasound 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 Grunasound 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.