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Contents
- The climate of Mariehamn Airport
- The best time to visit Mariehamn Airport
- The worst time to visit Mariehamn Airport
- Spring weather in Mariehamn Airport
- Summer weather in Mariehamn Airport
- Autumn weather in Mariehamn Airport
- Winter weather in Mariehamn Airport
- 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 rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
The climate of Mariehamn Airport
Mariehamn Airport lies within the Dfb climate zone according to the Köppen climate classification, signifying a humid continental climate with no dry season and a warm summer. Positioned in Finland, the yearly weather outflows follow a considerable variation across different climatic variables. The annual temperature spectrum moves between a high of 19°C (66.2°F) and sinks as low as -8°C (17.6°F), marking substantial differences during the year. In contrast, the rainfall levels stand relatively consistent throughout the year, with monthly averages between 25mm (0.98") and 64mm (2.52").
The annual temperature map exhibits noteworthy contrasts and unique weather patterns. Summer months from June to August dial back high temperatures averaging between 17°C (62.6°F) to 19°C (66.2°F), while winter months from December to February descend to icy lows ranging from -7°C (19.4°F) to -2°C (28.4°F). The year's warmer part, from June to August, also experiences daylight for an average of 18 hours per day, offering extended periods of sunlight. However, the UV index, with a top value of 5, requires precautions for the skin.
Reflection on maritime temperatures shows a relatively low yearly average between 1°C (33.8°F) and 16°C (60.8°F), indicating a less influencing factor in the local climate. On top of this, the rainfall distribution presents its maximum in August with a level of 64mm (2.52"), while February sees a minimum of 25mm (0.98"). Rainfall spans across the majority of the year, with the airport recording rainfall between 10 to 20 days each month.
The annual temperature map exhibits noteworthy contrasts and unique weather patterns. Summer months from June to August dial back high temperatures averaging between 17°C (62.6°F) to 19°C (66.2°F), while winter months from December to February descend to icy lows ranging from -7°C (19.4°F) to -2°C (28.4°F). The year's warmer part, from June to August, also experiences daylight for an average of 18 hours per day, offering extended periods of sunlight. However, the UV index, with a top value of 5, requires precautions for the skin.
Reflection on maritime temperatures shows a relatively low yearly average between 1°C (33.8°F) and 16°C (60.8°F), indicating a less influencing factor in the local climate. On top of this, the rainfall distribution presents its maximum in August with a level of 64mm (2.52"), while February sees a minimum of 25mm (0.98"). Rainfall spans across the majority of the year, with the airport recording rainfall between 10 to 20 days each month.
The best time to visit Mariehamn Airport
Considering a blend of temperature, rainfall and sunshine hours, the period between May to September stands as an inviting time to explore Mariehamn Airport's environs. During this period, temperatures cap at a cozy 12°C (53.6°F) to 19°C (66.2°F), offering warm days with plenty of daylight. These months average between 14.6 hours to 18.8 hours of daylight, with a significant amount of sunshine hours between 5 hours to 9 hours, giving ample opportunity for outdoor exploration. Despite being the period with heightened rainfall - 33mm (1.3") to 64mm (2.52") on average - it spreads across 10 to 14 days a month, leaving plenty of dry days in between downpours.
The worst time to visit Mariehamn Airport
The timeframe stretching from December to February scores as a challenging phase to navigate Mariehamn Airport's surroundings. This period suffers from chilling temperatures consistently sinking below zero, with lows getting down to -8°C (17.6°F) onwards and highs barely breaching the freezing point up to -1°C (30.2°F). The daylight hours shrink dramatically, spanning a modest 6 hours to 9.2 hours in a day. The sunshine hours dip down to 1 hour a day, making it less appealing for outdoor activities. Moreover, these months experience up to 20 days of rainfall, despite relatively lower rainfall volumes of 25mm (0.98") to 44mm (1.73").
Spring weather in Mariehamn Airport
The spring months, from March through May, witness a steady escalation in temperature with mercury levels ranging from -1°C (30.2°F) to 12°C (53.6°F). The transition towards warmer weather brings with it a light increase in rainfall, from 25mm (0.98") to 27mm (1.06"). Comparatively fewer days of rainfall, from 11 days to 10 days, mark this period. Spring unveils extended daylight hours from 11.8 hours to 17.2 hours, paired with an increase in sunshine from 3 hours to 8 hours a day.
Summer weather in Mariehamn Airport
Summertime, from June to August, brings the year's warmest weather with a comfortable temperature band between 17°C (62.6°F) and 19°C (66.2°F). The sea temperature soars to quenching values of 10°C (50°F) to 15°C (59°F), offering a cooling retreat. Rainfall amounts surge to their highest but spread over only 10 to 12 days a month. Daylight hours peak at an average of 18.4 hours a day, accompanied by abundant sunshine hours between 8 hours and 9 hours.
Autumn weather in Mariehamn Airport
Autumn ushers in a slow descent in temperature, from a pleasant 14°C (57.2°F) in September to a chilly 1°C (33.8°F) by November. Concurrently, sea temperatures cool down from 13°C (55.4°F) to 6°C (42.8°F). Rainfall levels elevate from 61mm (2.4") in September to 59mm (2.32") in November, but with an increased number of rainy days from 16 days to 19 days. The daylight hours recede from 12.9 hours to 7.5 hours, alongside a decrease in the sunshine hours from 4 hours to 1 hour.
Winter weather in Mariehamn Airport
Winter spans from December to February at Mariehamn Airport with a stark drop in temperature from 1°C (33.8°F) to as low as -8°C (17.6°F). Sea temperatures plunge to icy levels from 4°C (39.2°F) to 1°C (33.8°F). Rainfall, although relatively low - from 44mm (1.73") to 25mm (0.98") - is spread across a large chunk of the month - between 19 to 20 days. Daylight curtails to an average of 6 to 9.2 hours and sunshine equals a mere hour a day. This period sees UV indexes at their lowest point of 0, posing no harmful risk to skin.
Weather in January
January in Mariehamn Airport, Finland, is characterized by a chill in the air and frequent rainfall. Temperatures drop drastically from December, from both a high and a low perspective. A low-temperature threshold is set in January, a spell of cold is felt all throughout, with the mercury plunging to an extreme of -7°C (19.4°F). Weather in January »
Weather in February
In February, the weather conditions remain more or less similar to January. There is a slight decrease in average high and low temperatures, making February the coldest month of the year in Mariehamn Airport. Notwithstanding, it features less rainfall than the preceding month. Weather in February »
Weather in March
March marks a transition from freezing winters to milder weather. A noticeable shift in temperature can be felt as the city moves from February's chilling cold to a slightly warmer climate, although the lowest temperature is still -5°C (23°F). Weather in March »
Weather in April
Mariehamn Airport welcomes spring in April with moderately warm weather. It stands out in stark contrast to March with its notably increased average temperatures and extended daylight. The distribution of rainfall in this month does not drastically differ from that in March. Weather in April »
Weather in May
May is embraced by the city of Mariehamn Airport as a month of sunny days and prolonged daylight hours. A transition from April is evidently noticeable with the rise in temperature, reinforcing the onset of summers. Rainfall remains consistent, comparable to the quantity experienced in the previous month. Weather in May »
Weather in June
Arriving with a warm embrace, June ushers in summer for Mariehamn Airport. It exhibits a significant rise in temperature from May, and the sea temperature mirrors this pattern. The pattern of rainfall, however, remains similar to May. Weather in June »
Weather in July
Being the most temperate month of the year, July graces Mariehamn Airport with balmy weather and ample rainfall. Temperature highs peak this month to around 19°C (66.2°F), making it the warmest time of the year. Alongside, July records the maximum quantity of rainfall contributing to higher humidity levels. Weather in July »
Weather in August
August experiences a slight fall in temperature from July, indicating the beginning of a transitional phase towards autumn. Even though temperatures slightly descend, rainfall escalates to its peak level of 64mm (2.52") for the year in Mariehamn Airport. Weather in August »
Weather in September
September in Mariehamn Airport signifies the advent of autumn with a noticeable dip in temperature, rainier days and diminishing daylight hours from August. Another characteristic feature of September is the gradual decline in sunshine hours. Weather in September »
Weather in October
October amplifies the autumn vibes in Mariehamn Airport with temperatures falling further and reduced daylight hours. As compared to the previous month, October experiences a drop in temperature, with the minimum temperature being 4°C (39.2°F). Weather in October »
Weather in November
November at Mariehamn Airport is marked by a significant decrease in temperature from October, giving an early alert for the upcoming winter. It also signifies a consistent and steady amount of rainfall comparable to that seen in October. Weather in November »
Weather in December
December witnesses the onset of winter in Mariehamn Airport with a further drop in temperature from November. As temperatures continue to plummet, the average low hits -4°C (24.8°F). This chilly month marks a noticeable fall in rainfall from the previous month. Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Mariehamn Airport?
In Mariehamn Airport, Finland, during the entire year, the rain falls for 176 days and collects up to 508mm (20") of precipitation.
What are the months with the least sunshine in Mariehamn Airport?
January, February, November and December, with an average of 1h of sunshine, are months with the least sunshine.
When is the lowest UV index in Mariehamn Airport?
January, February, November and December, with an average maximum UV index of 0, are months with the lowest UV index.
What month is the coldest in Mariehamn Airport?
February, with an average high of -2°C (28.4°F) and a low of -8°C (17.6°F), signifies the coldest month of the year.
What is the driest month in Mariehamn Airport?
The months with the least rainfall in Mariehamn Airport are February and March Rain falls for 15 days and accumulates 25mm (0.98") of rain.
What months are the sea coldest in Mariehamn Airport?
The months with the coldest seawater in Mariehamn Airport are February and March, with an average sea temperature of 1°C (33.8°F).
When are the longest days in Mariehamn Airport?
The month with the longest days is June, with an average of 18h and 48min of daylight.
What month has the most sunshine in Mariehamn Airport?
With an average of 9h of sunshine, June has the most sunshine of the year.
What is the month with the highest UV index in Mariehamn Airport?
June and July, with an average maximum UV index of 5, are months with the highest UV index in Mariehamn Airport.
What month is the hottest in Mariehamn Airport?
In Mariehamn Airport, July is known for its average highest temperatures, reaching a high of 19°C (66.2°F) and a low of 12°C (53.6°F).
What is the wettest month in Mariehamn Airport?
The month with the most rainfall in Mariehamn Airport is August, when the rain falls for 14 days and typically aggregates up to 64mm (2.52") of precipitation.
When is the sea warmest in Mariehamn Airport?
The month with the warmest seawater in Mariehamn Airport is August, with an average sea temperature of 16°C (60.8°F).
When is Daylight Saving Time (DST) in Mariehamn Airport?
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.
What is the month with the shortest days in Mariehamn Airport?
December has the shortest days of the year in Mariehamn Airport, with an average of 6h and 0min of daylight.
Average temperature
Mariehamn Airport, Finland
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is February (-2°C).
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is February (-8°C).
Average rainfall
Mariehamn Airport, Finland
The wettest month (with the highest rainfall) is August (64mm).
The driest months (with the least rainfall) are February and March (25mm).
Average rainfall days
Mariehamn Airport, Finland
- Average rainfall days in January:
20 days - Average rainfall days in February:
15 days - Average rainfall days in March:
14 days - Average rainfall days in April:
11 days - Average rainfall days in May:
10 days - Average rainfall days in June:
10 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
14 days - Average rainfall days in September:
16 days - Average rainfall days in October:
16 days - Average rainfall days in November:
19 days - Average rainfall days in December:
19 days
The month with the highest number of rainy days is January (20 days).
The months with the least rainy days are May and June (10 days).
Average sea temperature
Mariehamn Airport, Finland
The best month for swimming (with the highest average sea temperature) is August (16°C).
The coldest months (with the lowest average sea temperature) are February and March (1°C).
Average daylight / Average sunshine
Mariehamn Airport, Finland
- Average daylight in January:
6h and 5min - Average daylight in February:
9h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 4min - Average daylight in May:
17h and 1min - Average daylight in June:
18h and 5min
- Average daylight in July:
18h and 0min - Average daylight in August:
15h and 4min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 1min - Average daylight in November:
7h and 3min - Average daylight in December:
6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
The month with the most sunshine is June (Average sunshine: 9h).
The months with the least sunshine are January, February, November and December (Average sunshine: 1h).
Average UV index
Mariehamn Airport, Finland
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 0).
Mariehamn Airport, Finland
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