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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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Perth, United Kingdom, with an average temperature ranging between max 4.3°C (39.7°F) and min 0.8°C (33.4°F). With average high temperatures of 4.3°C (39.7°F) and lows of 0.8°C (33.4°F), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Perth, is also an icy month, with an average temperature fluctuating between 0.9°C (33.6°F) and 5.3°C (41.5°F). With the onset of February, Perth's average high-temperature clocks in at a still icy 5.3°C (41.5°F), showing a minor fluctuation from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Perth, United Kingdom, with temperature in the range of an average low of 1.8°C (35.2°F) and an average high of 7.6°C (45.7°F). As February transitions into March, Perth records an average high-temperature of a chilly 7.6°C (45.7°F), showing a gentle shift from the preceding month. Weather in March »
Weather in April
April in Perth, United Kingdom, is a cool spring month, with an average temperature ranging between max 10.4°C (50.7°F) and min 3.4°C (38.1°F). Perth's transition from March to April introduces an average high-temperature of a cool 10.4°C (50.7°F), marking an insignificant variation from the 7.6°C (45.7°F). Weather in April »
Weather in May
The last month of the spring, May, is a mild month in Perth, United Kingdom, with an average temperature ranging between max 13.1°C (55.6°F) and min 5°C (41°F). Entering May, Perth's average high-temperature reads a mild 13.1°C (55.6°F), indicating a close resemblance to the previous month's climate. Weather in May »
Weather in June
The first month of the summer, June, is also a moderate month in Perth, United Kingdom, with an average temperature fluctuating between 15.4°C (59.7°F) and 7.5°C (45.5°F). June notes an average high-temperature of a still mild 15.4°C (59.7°F), subtly differing from May's 13.1°C (55.6°F). Weather in June »
Weather in July
July is a refreshing summer month in Perth, United Kingdom, with an average temperature varying between 17.1°C (62.8°F) and 9.3°C (48.7°F). In Perth, the average temperatures in July are the highest, with a peak at 17.1°C (62.8°F) and a low of 9.3°C (48.7°F). Weather in July »
Weather in August
The last month of the summer, August, is another comfortable month in Perth, United Kingdom, with an average temperature varying between 9.4°C (48.9°F) and 16.8°C (62.2°F). Upon the onset of August, Perth witnesses an average high-temperature of a still enjoyable 16.8°C (62.2°F), showing a close resemblance to the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is still a mild month in Perth, United Kingdom, with temperature in the range of an average low of 8.2°C (46.8°F) and an average high of 14.5°C (58.1°F). The advent of September presents an average high-temperature of a moderate 14.5°C (58.1°F), maintaining a close correlation with the preceding month. Weather in September »
Weather in October
October, like September, in Perth, United Kingdom, is a cool autumn month, with temperature in the range of an average high of 11.3°C (52.3°F) and an average low of 6°C (42.8°F). The onset of October results in a small decrease in the average high-temperature, moderately receding from a mild 14.5°C (58.1°F) in September to a cool 11.3°C (52.3°F). Weather in October »
Weather in November
November, the last month of the autumn in Perth, is also a frosty month, with an average temperature ranging between min 2.9°C (37.2°F) and max 7.3°C (45.1°F). A mild drop in Perth's average high-temperature is observed in November, transitioning from a cool 11.3°C (52.3°F) in October to a chilly 7.3°C (45.1°F). Weather in November »
Weather in December
December, the first month of the winter in Perth, is still a cold month, with an average temperature ranging between min 1°C (33.8°F) and max 4.8°C (40.6°F). December's advent presents an average high-temperature of a wintry 4.8°C (40.6°F), indicating a slight variation from the conditions of the previous month. 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
What part of the year is the coldest in Perth?
January, characterized by an average high temperature of 4.3°C (39.7°F) and a low temperature of 0.8°C (33.4°F), is generally the coldest month in Perth, United Kingdom.
What are the most humid months in Perth?
The months with the highest humidity are January, November and December, with an average relative humidity of 89%.
How much does it rain in Perth?
In Perth, during the entire year, the rain falls for 193.4 days and collects up to 508mm (20") of precipitation.
When does it snow in Perth?
Months with snowfall in Perth are January through May, November and December.
How much does it snow in Perth?
Throughout the year, in Perth, there are 15.6 snowfall days, and 167mm (6.57") of snow is accumulated.
When is the lowest UV index in Perth?
The month with the lowest UV index in Perth is January, with an average maximum UV index of 1.
When does it snow the most in Perth?
The month with the most snowfall in Perth is February, when snow falls for 4.7 days and typically aggregates up to 55mm (2.17") of snow.
What is the month with the least sunshine in Perth?
The months with the least sunshine in Perth, United Kingdom, are February and October, with an average of 4.2h of sunshine.
What is the least humid month in Perth?
With an average relative humidity of 81%, April is the least humid month in Perth, United Kingdom.
What is the driest month in Perth?
April is the month with the least rainfall. Rain falls for 14.3 days and accumulates 22mm (0.87") of precipitation.
When it does not snow in Perth?
June through October are months without snowfall.
When are the longest days in Perth?
June has the longest days of the year in Perth, with an average of 17h and 36min of daylight.
What month has the most sunshine in Perth?
June has the most sunshine of the year, with an average of 7.5h of sunshine.
What are the months with the highest UV index in Perth?
The months with the highest UV index in Perth are June through August, with an average maximum UV index of 4.
What are the warmest months in Perth?
With average high and low temperatures of 17.1°C (62.8°F) and 9.3°C (48.7°F) respectively, July is Perth's warmest month.
What is the rainiest month in Perth?
The month with the most rainfall in Perth is August, when the rain falls for 20.7 days and typically aggregates up to 67mm (2.64") of precipitation.
When is Daylight Saving Time (DST) in Perth?
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 month with the shortest days in Perth?
With an average of 7h and 0min of daylight, December has the shortest days of the year.
Average temperature
Perth, United Kingdom
The warmest month (with the highest average high temperature) is July (17.1°C).
The month with the lowest average high temperature is January (4.3°C).
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure
Perth, United Kingdom
- Average pressure in January:
1008.4mbar - Average pressure in February:
1008.6mbar - Average pressure in March:
1012.1mbar - Average pressure in April:
1014.5mbar - Average pressure in May:
1015.3mbar - Average pressure in June:
1014.5mbar
- Average pressure in July:
1012.4mbar - Average pressure in August:
1010.9mbar - Average pressure in September:
1012.9mbar - Average pressure in October:
1011.3mbar - Average pressure in November:
1006.6mbar - Average pressure in December:
1007.3mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed
Perth, United Kingdom
- Average wind speed in January:
16.6km/h - Average wind speed in February:
16.1km/h - Average wind speed in March:
16.3km/h - Average wind speed in April:
13.8km/h - Average wind speed in May:
13.2km/h - Average wind speed in June:
11.1km/h
- Average wind speed in July:
11.1km/h - Average wind speed in August:
11.8km/h - Average wind speed in September:
12.9km/h - Average wind speed in October:
13.9km/h - Average wind speed in November:
14.6km/h - Average wind speed in December:
16.2km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest months (with the lowest average wind speed) are June and July (11.1km/h).
Average humidity
Perth, United Kingdom
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is April (81%).
Average rainfall
Perth, United Kingdom
The wettest month (with the highest rainfall) is August (67mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days
Perth, United Kingdom
- Average rainfall days in January:
14.1 days - Average rainfall days in February:
11.9 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
19.7 days
- Average rainfall days in July:
21.9 days - Average rainfall days in August:
20.7 days - Average rainfall days in September:
15 days - Average rainfall days in October:
16.4 days - Average rainfall days in November:
14 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is July (21.9 days).
The month with the least rainy days is February (11.9 days).
Average snowfall
Perth, United Kingdom
The month with the highest snowfall is February (55mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days
Perth, United Kingdom
- Average snowfall days in January:
3.9 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
2.9 days - Average snowfall days in April:
0.8 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:
0.7 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Perth, 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 2min - Average daylight in May:
16h and 2min - Average daylight in June:
17h and 4min
- Average daylight in July:
17h and 0min - Average daylight in August:
15h and 1min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 2min - Average daylight in November:
8h and 1min - Average daylight in December:
7h and 0min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 3min - Average sunshine in April:
7h and 2min - Average sunshine in May:
7h and 2min - Average sunshine in June:
7h and 3min
- Average sunshine in July:
7h and 2min - Average sunshine in August:
7h and 0min - Average sunshine in September:
6h and 3min - Average sunshine in October:
4h and 1min - Average sunshine in November:
4h and 2min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 7h and 30min).
The months with the least sunshine are February and October (Average sunshine: 4h and 12min).
Average sunshine days
Perth, United Kingdom
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
12.1 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
6.6 days
- Average sunshine days in July:
5.5 days - Average sunshine days in August:
7 days - Average sunshine days in September:
10.9 days - Average sunshine days in October:
12 days - Average sunshine days in November:
13.8 days - Average sunshine days in December:
12.8 days
The month with the most sunshine days is November (13.8 days).
The month with the least sunshine days is July (5.5 days).
Average UV index
Perth, United Kingdom
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Perth, United Kingdom
The month with the most cloud cover is June (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility
Perth, United Kingdom
The months with the highest visibility are January, February, March, April, May and December (9km).
The months with the lowest visibility are June, July, August, September, October and November (8km).
