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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Helensburgh, United Kingdom, is a wintry winter month, with temperature in the range of an average low of 1.7°C (35.1°F) and an average high of 5°C (41°F). Helensburgh'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
The last month of the winter, February, is also a wintry month in Helensburgh, United Kingdom, with an average temperature ranging between min 1.4°C (34.5°F) and max 5.3°C (41.5°F). Helensburgh's February reports an average high-temperature of a still cold 5.3°C (41.5°F), exhibiting a minor difference from January. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Helensburgh, United Kingdom, with an average temperature fluctuating between 7.3°C (45.1°F) and 2.3°C (36.1°F). Upon the onset of March, Helensburgh witnesses an average high-temperature of a chilly 7.3°C (45.1°F), showing a close resemblance to the prior month. Weather in March »
Weather in April
April in Helensburgh, United Kingdom, is a cool spring month, with an average temperature ranging between max 10.3°C (50.5°F) and min 3.8°C (38.8°F). In April, the average high-temperature marginally rises from a chilly 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 another cool month in Helensburgh, United Kingdom, with an average temperature varying between 5.8°C (42.4°F) and 12.8°C (55°F). Helensburgh's average high-temperature in May is a still cool 12.8°C (55°F), indicating a subtle variation from April. Weather in May »
Weather in June
The first month of the summer, June, is a mild month in Helensburgh, United Kingdom, with an average temperature varying between 15.3°C (59.5°F) and 8.3°C (46.9°F). The shift into June records an average high-temperature of a refreshing 15.3°C (59.5°F), subtly varied from May's 12.8°C (55°F). Weather in June »
Weather in July
July is a refreshing summer month in Helensburgh, United Kingdom, with temperature in the range of an average low of 9.8°C (49.6°F) and an average high of 16.3°C (61.3°F). With an average high-temperature of 16.3°C (61.3°F) and an average low-temperature of 9.8°C (49.6°F), July is the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Helensburgh, is also a moderate month, with an average temperature fluctuating between 9.7°C (49.5°F) and 15.8°C (60.4°F). August reports an average high-temperature of a mild 15.8°C (60.4°F), slightly varied from July's 16.3°C (61.3°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a mild month in Helensburgh, United Kingdom, with an average temperature ranging between min 8.7°C (47.7°F) and max 13.9°C (57°F). With the advent of September, Helensburgh's high-temperatures adjust to a still refreshing 13.9°C (57°F), closely aligning with the preceding month. Weather in September »
Weather in October
October, the same as September, is another fresh autumn month in Helensburgh, United Kingdom, with an average temperature fluctuating between 6.6°C (43.9°F) and 11.2°C (52.2°F). The initiation of October records an average high-temperature of a fresh 11.2°C (52.2°F), displaying a near consistency with the previous month. Weather in October »
Weather in November
November, the last month of the autumn in Helensburgh, is also a frosty month, with an average temperature varying between 3.7°C (38.7°F) and 7.5°C (45.5°F). The onset of November entails a subtle temperature shift, as the average high-temperature eases 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
December, the first month of the winter in Helensburgh, is also an icy month, with an average temperature fluctuating between 2.3°C (36.1°F) and 5.5°C (41.9°F). As December takes its course, Helensburgh's average high-temperature registers at an icy 5.5°C (41.9°F), closely aligning with the preceding month. Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Helensburgh?
The month of January sees the average lowest temperatures in Helensburgh, reaching 5°C (41°F) at the peak and 1.7°C (35.1°F) at the low.
What is the most humid month in Helensburgh?
The months with the highest humidity are January, August through December, with an average relative humidity of 89%.
How much does it rain in Helensburgh?
In Helensburgh, during the entire year, the rain falls for 249.9 days and collects up to 1079mm (42.48") of precipitation.
When does it snow in Helensburgh?
Months with snowfall in Helensburgh, United Kingdom, are January through April, November and December.
How many days does it snow in Helensburgh?
In Helensburgh, United Kingdom, during the entire year, snow falls for 10.8 days and aggregates up to 115mm (4.53") of snow.
What is the month with the lowest UV index in Helensburgh?
With an average maximum UV index of 1, January is the month with the lowest UV index.
When does it snow the most in Helensburgh?
February is the month with the most snowfall in Helensburgh. Snow falls for 3.6 days and accumulates 53mm (2.09") of snow.
What is the month with the least sunshine in Helensburgh?
With an average of 3h of sunshine, February has the least sunshine of the year.
What is the month with the coldest sea water in Helensburgh?
The month with the coldest seawater is March, with an average sea temperature of 7.2°C (45°F).
What is the least humid month in Helensburgh?
April and May, with an average relative humidity of 83%, are the least humid months.
What is the driest month in Helensburgh?
The month with the least rainfall is April, when the rain falls for 18.2 days and typically collects 48mm (1.89") of precipitation.
When it does not snow in Helensburgh?
May through October are months without snowfall.
When is the highest UV index in Helensburgh?
The months with the highest UV index in Helensburgh are May and June, with an average maximum UV index of 4.
When are the longest days in Helensburgh?
With an average of 17h and 30min of daylight, June has the longest days of the year in Helensburgh, United Kingdom.
What month has the most sunshine in Helensburgh?
With an average of 6.6h of sunshine, June has the most sunshine of the year in Helensburgh, United Kingdom.
What are the warmest months in Helensburgh?
Helensburgh, United Kingdom, witnesses the warmest weather in July, with temperatures averaging a high of 16.3°C (61.3°F) and a low of 9.8°C (49.6°F).
What month is the sea warmest in Helensburgh?
With an average sea temperature of 13.8°C (56.8°F), August is the month with the warmest seawater in Helensburgh, United Kingdom.
When is Daylight Saving Time (DST) in Helensburgh?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends, 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.
What is the wettest month in Helensburgh?
The month with the most rainfall in Helensburgh is December, when the rain falls for 22.5 days and typically aggregates up to 116mm (4.57") of precipitation.
What is the month with the shortest days in Helensburgh?
The month with the shortest days in Helensburgh is December, with an average of 7h and 6min of daylight.
Average temperature
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, United Kingdom
The best month for swimming (with the highest average sea temperature) is August (13.8°C).
The coldest month (with the lowest average sea temperature) is March (7.2°C).
Average daylight / Average sunshine
Helensburgh, United Kingdom
- Average daylight in January:
7h and 4min - Average daylight in February:
9h and 4min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 1min - Average daylight in May:
16h and 2min - Average daylight in June:
17h and 3min
- Average daylight in July:
16h and 5min - Average daylight in August:
15h and 0min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 2min - Average daylight in November:
8h and 2min - Average daylight in December:
7h and 1min
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 1min - Average sunshine in February:
3h and 0min - Average sunshine in March:
4h and 2min - Average sunshine in April:
6h and 1min - Average sunshine in May:
6h and 2min - Average sunshine in June:
6h and 4min
- Average sunshine in July:
5h and 5min - Average sunshine in August:
5h and 1min - Average sunshine in September:
4h and 5min - Average sunshine in October:
3h and 1min - Average sunshine in November:
3h and 3min - Average sunshine in December:
3h and 1min
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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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
Helensburgh, 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).
Helensburgh, United Kingdom
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