Measurements:
°C
°F
Glasgow
42°F
NE 16 mph
Feels like: 32°F
Precip: 0%
World Resorts United Kingdom Glasgow Weather

Glasgow Sea Water Temperature

Current Sea Water Temperature:
+48.8°F
Maximum Sea Water Temperature in December: 51.4°F
Minimum Sea Water Temperature in December: 45.4°F
Average water temperature in December: 48.6°F

Sea Water Temperature for the Last 10 Days:

December 13 48.8°F December 08 49.6°F
December 12 49.2°F December 07 49.8°F
December 11 49.2°F December 06 49.8°F
December 10 49.4°F December 05 50.0°F
December 09 49.4°F December 04 50.2°F

When is the Warmest Sea for Glasgow?

According to our data for the last three years for Glasgow the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Glasgow was 61.5°F. The maximum and minimum values were 60.0°F and 63.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Glasgow was 60.6°F. The maximum and minimum values were 59.0°F and 63.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Glasgow was 58.8°F. The maximum and minimum values were 56.4°F and 61.2°F respectively.

Best Time to Visit Glasgow
The most sunny months:
May 5 days
April 5 days
March 4 days
The most warm months:
July 64.9 °F
August 63.7 °F
June 62.1 °F
Warmest sea temperature:
August 59.8 °F
July 58.5 °F
September 57.4 °F
The most cold months:
January 39.1 °F
December 40.8 °F
February 41.6 °F
The most rainy months:
December 10 days
August 9 days
October 9 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph

Glasgow on the Weather Map

United Kingdom Resorts:
NAME
Bath +38
Belfast +40
Bournemouth +44
Brighton +46
Bristol +40
Edinburgh +44
Gibraltar +60
Glasgow +42
Liverpool +42
London +36
Middlesbrough +40
Plymouth +46
Scarborough +40
Torquay +38
York +38
24 Hours Weather Forecast
Glasgow
Local time: 09:28
13 dec, saturday
1200 46°F
NE
19 mph
1500 44°F
NE
22 mph
1800 46°F
NE
23 mph
2100 48°F
NE
21 mph
14 dec, sunday
0000 48°F
NE
18 mph
0300 48°F
NE
14 mph
0600 50°F
N
15 mph
0900 52°F
NE
19 mph