Climate and monthly weather forecastGreenock, United Kingdom
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Greenock, United Kingdom, with an average temperature fluctuating between 1.7°C (35.1°F) and 5°C (41°F). Greenock's January weather reaches an average high of 5°C (41°F) and an average low of 1.7°C (35.1°F), making it the coldest month. Weather in January »Weather in February
February, the last month of the winter in Greenock, is another cold month, with an average temperature ranging between max 5.3°C (41.5°F) and min 1.4°C (34.5°F). As February unfolds, the average high-temperature reaches a still cold 5.3°C (41.5°F), hinting at a slight fluctuation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Greenock, United Kingdom, with temperature in the range of an average high of 7.3°C (45.1°F) and an average low of 2.3°C (36.1°F). At the start of March, Greenock's average high-temperature reaches a chilly 7.3°C (45.1°F), subtly different from the preceding month. Weather in March »Weather in April
April is a fresh spring month in Greenock, United Kingdom, with an average temperature varying between 3.8°C (38.8°F) and 10.3°C (50.5°F). A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a frosty 7.3°C (45.1°F) in March to a cool 10.3°C (50.5°F). Weather in April »Weather in May
The last month of the spring, May, is also a fresh month in Greenock, United Kingdom, with an average temperature varying between 12.8°C (55°F) and 5.8°C (42.4°F). May brings an average high-temperature of a still fresh 12.8°C (55°F), nearly identical to the preceding month. Weather in May »Weather in June
June, the first month of the summer in Greenock, is a mild month, with an average temperature fluctuating between 15.3°C (59.5°F) and 8.3°C (46.9°F). During June, Greenock observes a subtle ascent to a moderate 15.3°C (59.5°F) from May's 12.8°C (55°F) in the average high-temperature. Weather in June »Weather in July
July in Greenock, United Kingdom, is a comfortable summer month, with an average temperature ranging between min 9.8°C (49.6°F) and max 16.3°C (61.3°F). In Greenock, July is the month with the highest recorded average temperatures, measuring a high of 16.3°C (61.3°F) and a low of 9.8°C (49.6°F). Weather in July »Weather in August
August, the last month of the summer in Greenock, is another mild month, with an average temperature ranging between min 9.7°C (49.5°F) and max 15.8°C (60.4°F). With the onset of August, a modest change to a still refreshing 15.8°C (60.4°F) from July's 16.3°C (61.3°F) is noted in high-temperature. Weather in August »Weather in September
September, the first month of the autumn in Greenock, is still a mild month, with an average temperature ranging between min 8.7°C (47.7°F) and max 13.9°C (57°F). September's advent presents an average high-temperature of a still moderate 13.9°C (57°F), indicating a slight variation from the conditions of the previous month. Weather in September »Weather in October
October, the same as September, is a cool autumn month in Greenock, United Kingdom, with an average temperature fluctuating between 11.2°C (52.2°F) and 6.6°C (43.9°F). The arrival of October brings an average high-temperature of a cool 11.2°C (52.2°F), subtly diverging from September's 13.9°C (57°F). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Greenock, United Kingdom, with temperature in the range of an average high of 7.5°C (45.5°F) and an average low of 3.7°C (38.7°F). The onset of November is marked by a minor decrease in temperature, transitioning from a cool 11.2°C (52.2°F) in October to a chilly 7.5°C (45.5°F). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Greenock, United Kingdom, with an average temperature ranging between min 2.3°C (36.1°F) and max 5.5°C (41.9°F). December brings a marginal elevation to an icy 5.5°C (41.9°F) from November's 7.5°C (45.5°F) in Greenock's average high-temperatures. Weather in December »Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, on average, is the coldest month in Greenock, registering a high temperature of 5°C (41°F) and a low of 1.7°C (35.1°F).
January, August through December, with an average relative humidity of 89%, are most humid months in Greenock, United Kingdom.
Throughout the year, there are 249.9 rainfall days, and 1079mm (42.48") of precipitation is accumulated.
January through April, November and December are months with snowfall in Greenock.
In Greenock, during the entire year, snow falls for 10.8 days and aggregates up to 115mm (4.53") of snow.
With an average maximum UV index of 1, January is the month with the lowest UV index in Greenock, United Kingdom.
February is the month with the most snowfall. Snow falls for 3.6 days and accumulates 53mm (2.09") of snow.
The month with the least sunshine is February, with an average of 3h of sunshine.
The month with the coldest seawater in Greenock, United Kingdom, is March, with an average sea temperature of 7.4°C (45.3°F).
April and May, with an average relative humidity of 83%, are the least humid months in Greenock, United Kingdom.
April is the month with the least rainfall in Greenock. Rain falls for 18.2 days and accumulates 48mm (1.89") of precipitation.
May through October are months without snowfall in Greenock, United Kingdom.
May and June, with an average maximum UV index of 4, are months with the highest UV index.
With an average of 17h and 30min of daylight, June has the longest days of the year in Greenock.
The month with the most sunshine is June, with an average of 6.6h of sunshine.
July, noted for its average high-temperature of 16.3°C (61.3°F) and an average low-temperature of 9.8°C (49.6°F), is considered the warmest month.
With an average sea temperature of 14.3°C (57.7°F), August is the month with the warmest seawater in Greenock, United Kingdom.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Greenock, United Kingdom, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
December is the month with the most rainfall. Rain falls for 22.5 days and accumulates 116mm (4.57") of precipitation.
The month with the shortest days is December, with an average of 7h and 6min of daylight.
Average temperature
Greenock, United Kingdom
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (5°C).
The month with the highest average low temperature is July (9.8°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure
Greenock, United Kingdom
- Average pressure in January:
1008.6mbar - Average pressure in February:
1008.8mbar - Average pressure in March:
1012.3mbar - Average pressure in April:
1014.3mbar - Average pressure in May:
1015.2mbar - Average pressure in June:
1014.5mbar
- Average pressure in July:
1012.5mbar - Average pressure in August:
1011mbar - Average pressure in September:
1013.1mbar - Average pressure in October:
1011.2mbar - Average pressure in November:
1006.6mbar - Average pressure in December:
1007.7mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed
Greenock, United Kingdom
- Average wind speed in January:
19.3km/h - Average wind speed in February:
18.4km/h - Average wind speed in March:
17.9km/h - Average wind speed in April:
15.3km/h - Average wind speed in May:
14.7km/h - Average wind speed in June:
11.9km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
12.7km/h - Average wind speed in September:
14.5km/h - Average wind speed in October:
15.7km/h - Average wind speed in November:
16.6km/h - Average wind speed in December:
18.8km/h
The windiest month (with the highest average wind speed) is January (19.3km/h).
The calmest months (with the lowest average wind speed) are June and July (11.9km/h).
Average humidity
Greenock, United Kingdom
The months with the highest relative humidity are January, August, September, October, November and December (89%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall
Greenock, United Kingdom
The wettest month (with the highest rainfall) is December (116mm).
The driest month (with the least rainfall) is April (48mm).
Average rainfall days
Greenock, United Kingdom
- Average rainfall days in January:
21.3 days - Average rainfall days in February:
17.8 days - Average rainfall days in March:
19.6 days - Average rainfall days in April:
18.2 days - Average rainfall days in May:
20.8 days - Average rainfall days in June:
20.4 days
- Average rainfall days in July:
23.8 days - Average rainfall days in August:
24 days - Average rainfall days in September:
21.5 days - Average rainfall days in October:
20.9 days - Average rainfall days in November:
19.1 days - Average rainfall days in December:
22.5 days
The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is February (17.8 days).
Average snowfall
Greenock, United Kingdom
The month with the highest snowfall is February (53mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Greenock, United Kingdom
- Average snowfall days in January:
2.7 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
1.8 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature
Greenock, United Kingdom
The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (7.4°C).
Average daylight / Average sunshine
Greenock, United Kingdom
- Average daylight in January:
7h and 42min - Average daylight in February:
9h and 36min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 12min - Average daylight in May:
16h and 18min - Average daylight in June:
17h and 30min
- Average daylight in July:
16h and 54min - Average daylight in August:
15h and 0min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 24min - Average daylight in November:
8h and 18min - Average daylight in December:
7h and 6min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in January:
3h and 6min - Average sunshine in February:
3h and 0min - Average sunshine in March:
4h and 18min - Average sunshine in April:
6h and 6min - Average sunshine in May:
6h and 18min - Average sunshine in June:
6h and 36min
- Average sunshine in July:
5h and 54min - Average sunshine in August:
5h and 6min - Average sunshine in September:
4h and 54min - Average sunshine in October:
3h and 12min - Average sunshine in November:
3h and 30min - Average sunshine in December:
3h and 6min
The month with the most sunshine is June (Average sunshine: 6h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days
Greenock, United Kingdom
- Average sunshine days in January:
6.7 days - Average sunshine days in February:
7.5 days - Average sunshine days in March:
8.2 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
8.3 days - Average sunshine days in June:
6.8 days
- Average sunshine days in July:
5.4 days - Average sunshine days in August:
5.4 days - Average sunshine days in September:
6.8 days - Average sunshine days in October:
8.3 days - Average sunshine days in November:
8.5 days - Average sunshine days in December:
6.9 days
The month with the most sunshine days is April (8.8 days).
The months with the least sunshine days are July and August (5.4 days).
Average UV index
Greenock, United Kingdom
The months with the highest UV index are May and June (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Greenock, United Kingdom
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 59).
Average visibility
Greenock, United Kingdom
The months with the highest visibility are January, February, March, April, May and November (9km).
The months with the lowest visibility are June, July, August, September, October and December (8km).
