Climate and monthly weather forecastSaint Saviour, Guernsey
Climate and monthly weather forecast
The climate of Saint Saviour
Saint Saviour on Guernsey island is characterised by a predominant Cfb climate according to the Köppen climate classification, also referred to as marine west coast with warm summers. Located in the English Channel, Saint Saviour sees moderate fluctuations in weather throughout the year.Major shifts in weather parameters include temperatures, rainfall, and daylight hours. Monthly average temperatures show a slight rise from a low of 7°C (44.6°F) in February to a high of 17.8°C (64°F) in August. Rainfall takes a dip from March to September, from 63mm (2.48") to 26mm (1.02") respectively, before rising again in autumn, reaching a significant peak of 87mm (3.43") in November.
The length of daylight is longest in June, with 16.2 hours, and shortest in December with 8.3 hours. Wind speeds typically vary between 21.9km/h (13.6mph) to 36km/h (22.4mph). Predictably, Saint Saviour also boasts a remarkably steady visibility of 10km (6.2mi) throughout the year.
The weather of Saint Saviour is unique in that rainfall persists throughout the year, even in the relatively dry summer months. A noteworthy feature of this location is its relatively steady humidity levels, which consistently range from 77% to 84%, creating a general sense of mild and damp climate.
The best time to visit Saint Saviour
Plan a trip to Saint Saviour between May and September to enjoy the warmest weather and longest daylight hours. Average temperature during this time lie in the region of 12.8°C (55°F) to 17.8°C (64°F). Despite the relatively even spread of rainfall throughout the year, these months see a comparative dip with rainfall between 26mm (1.02") and 33mm (1.3"). Additionally, with daylight hours extending from 15.4 hours to a generous 16.2 hours, visitors will have ample time to explore the picturesque locale.The worst time to visit Saint Saviour
The months of November and December could prove fairly challenging for those not fond of damp and chilly conditions. Rainfall peaks at 87mm (3.43") in November and the temperatures dip to the yearly low averages of 10°C (50°F) to 13°C (55.4°F). The length of daylight also shrinks, reaching a low of 8.3 hours in December.Spring weather in Saint Saviour
Spring (March, April, May) in Saint Saviour displays a mild increase in temperature from an average of 9.8°C (49.6°F) to 12.8°C (55°F). Rainfall in spring lies between 32mm (1.26") to 38mm (1.5"), showcasing a dip from the early year figures. Daily sunshine duration increases steadily during this season, progressing from 6.2 hours to a comfortable 9.1 hours.Summer weather in Saint Saviour
During summer (June, July, August) Saint Saviour presents a warm and pleasantly mild climate. Average temperatures range from 15.2°C (59.4°F) in June to a yearly peak of 17.8°C (64°F) in August. Meanwhile, rainfall remains steady, ranging from 26mm (1.02") to 33mm (1.3"). This season also features the longest daylight hours reaching a maximum of 16.2 hours in June.Autumn weather in Saint Saviour
Autumn (September, October, November) witnesses a steady reduction in temperature from 17.2°C (63°F) to 13°C (55.4°F), and a noticeable increase in rainfall, creeping up from 31mm (1.22") to a yearly high of 87mm (3.43"). Autumnal days in Saint Saviour shorten from 12.6 hours in September to 9.1 hours by November.Winter weather in Saint Saviour
Winter months (December, January, February) in Saint Saviour are characterized by the coldest temperatures of the year, decreasing from 11.1°C (52°F) in December to 9.2°C (48.6°F) in February. Rainfall is persistent, swinging between 63mm (2.48") to 70mm (2.76"). Daylight reaches its annual low in December with 8.3 hours, slowly extending to 10.2 hours by February.Weather in January
Kicking off the New Year, January's weather in Saint Saviour, Guernsey, resumes the winter dynamics. The temperatures are low, as is to be expected during this period, with notable shifts in wind speeds recording up to 34.1km/h (21.2mph). Weather in January »Weather in February
The Saint Saviour weather in February continues on a similar trajectory as January. Despite being the shortest month of the year, February does not abbreviate the chilly winter ambience, particularly notable with an average low temperature of 7°C (44.6°F). Weather in February »Weather in March
March brings forth favorable alterations in the weather patterns of Saint Saviour. There is a relative warmth compared to February, rendered visible by a recorded high temperature of roughly 9.8°C (49.6°F). The dawn of spring manifests itself in the spurts of increased sunshine hours and UV index. Weather in March »Weather in April
April showers hit Saint Saviour, marking the midway point of spring. The weather chart for April uniquely features the least amount of rainfall all year, with amounts dropping to 32mm (1.26"). Consequently, this period is punctuated by a blossoming scenery and bustling wildlife, quintessential signs of spring. Weather in April »Weather in May
May brings with it an evident change in the clime of Saint Saviour. Being the bringer of summer, May boasts a relatively high temperature of 12.8°C (55°F), indicative of the transition phase. The burgeoning foliage provides a panorama of greenery, radiating life after the dreary winter period. Weather in May »Weather in June
June in Saint Saviour introduces the desired summer weather. Temperatures substantialize with recorded highs around 15.2°C (59.4°F), signifying the annual warm period’s commencement. Extended daylight hours yield an influx of sunlight, hence more sunshine. Weather in June »Weather in July
July is characterized by the full swing of summer in Saint Saviour, with weather patterns favorable for outdoor activities. July claims the warmest temperatures of the year with highs reaching 16.9°C (62.4°F), making it peculiarly sweltering. Weather in July »Weather in August
August ushers in the tail end of summer in Saint Saviour, making it a popular timeframe for vacationers. The weather in August does not disappoint, with top temperatures peaking at 17.8°C (64°F). The migrant birds start to make their journey back, spurred by the waning daylight hours. Weather in August »Weather in September
September in Saint Saviour embodies the crispness of autumn. Although average high temperatures remain around 17.2°C (63°F), characteristic of residual summer warmth, it becomes apparent that fall is setting in. Gentle winds disrupt the leafy canopies, painting the locale in a blend of earthy tones. Weather in September »Weather in October
Welcome to October, the month that firmly places Saint Saviour, Guernsey, into the autumn season. The noticeable decline in temperatures, with the temperature low dipping to 13.6°C (56.5°F), marks a pronounced shift. The city is shrouded in a picturesque aura of falling leaves coupled with mellow sunshine. Weather in October »Weather in November
November in Saint Saviour lays the groundwork for winter. Winter's chill starts to descend, amply visible with a significant upshift in rainfall to 87mm (3.43"). The decreased hours of daylight accompanied by brisk winds create a coercive indoor environment. Weather in November »Weather in December
Saint Saviour's December rounds up the year with full-fledged winter weather. A noticeable cold embrace ensues with a substantial drop in temperature, recording a low of around 9.2°C (48.6°F). With fewer daylight hours, the lengthy nights dominate December. Weather in December »Updated: Feb 9, 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
Throughout the year, there are 196.3 rainfall days, and 557mm (21.93") of precipitation is accumulated.
January is the only month when snow falls in Saint Saviour, Guernsey.
January is the month with the most snowfall in Saint Saviour. Snow falls for 0.3 days and accumulates 2mm (0.08") of snow.
Throughout the year, in Saint Saviour, there are 0.5 snowfall days, and 2mm (0.08") of snow is accumulated.
The months with the least sunshine are January, November and December, with an average of 3.9h of sunshine.
With an average high-temperature of 9.2°C (48.6°F) and an average low-temperature of 7°C (44.6°F), February is the coldest month.
In Saint Saviour, Guernsey, snow does not fall in February through December.
With an average maximum UV index of 2, February is the month with the lowest UV index in Saint Saviour, Guernsey.
June and July, with an average relative humidity of 84%, are most humid months.
The month with the longest days in Saint Saviour, Guernsey, is June, with an average of 16h and 12min of daylight.
The month with the least rainfall is July, when the rain falls for 12.8 days and typically collects 26mm (1.02") of precipitation.
July has the most sunshine of the year in Saint Saviour, Guernsey, with an average of 9.7h of sunshine.
July through September, with an average maximum UV index of 5, are months with the highest UV index in Saint Saviour, Guernsey.
In Saint Saviour, the average temperatures in August are the highest, with a peak at 17.8°C (64°F) and a low of 15.8°C (60.4°F).
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends in Saint Saviour, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 01:00, and the time zone reverts from GMT to BST.
The months with the lowest humidity in Saint Saviour, Guernsey, are November and December, with an average relative humidity of 77%.
The month with the most rainfall in Saint Saviour, Guernsey, is November, when the rain falls for 22.8 days and typically aggregates up to 87mm (3.43") of precipitation.
With an average of 8h and 12min of daylight, December has the shortest days of the year.
Average temperature
Saint Saviour, Guernsey
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).
Average pressure
Saint Saviour, Guernsey
- Average pressure in January:
1016.1mbar - Average pressure in February:
1015.2mbar - Average pressure in March:
1016.2mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1017.4mbar - Average pressure in June:
1016.9mbar
- Average pressure in July:
1016.7mbar - Average pressure in August:
1016.4mbar - Average pressure in September:
1017.9mbar - Average pressure in October:
1015.7mbar - Average pressure in November:
1011.5mbar - Average pressure in December:
1016.5mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed
Saint Saviour, Guernsey
- Average wind speed in January:
34.1km/h - Average wind speed in February:
34km/h - Average wind speed in March:
30.3km/h - Average wind speed in April:
25km/h - Average wind speed in May:
23.7km/h - Average wind speed in June:
22.8km/h
- Average wind speed in July:
21.9km/h - Average wind speed in August:
22.8km/h - Average wind speed in September:
25.8km/h - Average wind speed in October:
29.1km/h - Average wind speed in November:
34.8km/h - Average wind speed in December:
36km/h
The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity
Saint Saviour, Guernsey
The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall
Saint Saviour, Guernsey
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days
Saint Saviour, Guernsey
- Average rainfall days in January:
22 days - Average rainfall days in February:
17.7 days - Average rainfall days in March:
17 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
14 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
18.5 days - Average rainfall days in November:
22.8 days - Average rainfall days in December:
21.4 days
The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).
Average snowfall
Saint Saviour, Guernsey
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Saint Saviour, Guernsey
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 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 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Saint Saviour, Guernsey
- Average daylight in January:
8h and 42min - Average daylight in February:
10h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 48min - Average daylight in May:
15h and 24min - Average daylight in June:
16h and 12min
- Average daylight in July:
15h and 48min - Average daylight in August:
14h and 24min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 6min - Average daylight in December:
8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 12min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 6min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 12min - Average sunshine in September:
8h and 24min - Average sunshine in October:
4h and 54min - Average sunshine in November:
3h and 54min - Average sunshine in December:
3h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).
Average sunshine days
Saint Saviour, Guernsey
- Average sunshine days in January:
5.5 days - Average sunshine days in February:
6.9 days - Average sunshine days in March:
10.7 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
16 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
13.1 days - Average sunshine days in October:
8.6 days - Average sunshine days in November:
4 days - Average sunshine days in December:
5.3 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).
Average UV index
Saint Saviour, Guernsey
The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover
Saint Saviour, Guernsey
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility
Saint Saviour, Guernsey
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
