Helsinki
Finland
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Helsinki, Finland

A scenic reflection in the water of the illuminated city of Helsinki in Finland, viewed from the water
A scenic reflection in the water of the illuminated city of Helsinki in Finland, viewed from the water
The first month of the spring, March, is a wintry month in Helsinki, Finland, with average temperature ranging between max 1.6°C (34.9°F) and min -4.1°C (24.6°F).

Temperature

In Helsinki, the average high-temperature slightly increases, from a freezing cold -1.9°C (28.6°F) in February, to a cold 1.6°C (34.9°F). The average low-temperature, in March, is -4.1°C (24.6°F).

Rainfall

In Helsinki, Finland, during March, the rain falls for 15 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 182 rainfall days, and 655mm (25.8") of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall.

Sea temperature

Months with the coldest seawater in Helsinki, Finland, are February and March, with an average sea temperature of 1°C (33.8°F).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

In Helsinki, the average length of the day is 11.9h.

Sunshine

In Helsinki, the average sunshine is 4.5h.

UV index

In March, the average daily maximum UV index in Helsinki, Finland, is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 1 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in March in Helsinki?

The average high-temperature, in March, in Helsinki, Finland, is 1.6°C (34.9°F), while the average low-temperature is -4.1°C (24.6°F).

How many days does it rain in March in Helsinki?

In March, in Helsinki, the rain falls for 15 days. Throughout March, 38mm (1.5") of precipitation is accumulated.

What is the last month it snows in Helsinki?

March is the last month it regularly snows in Helsinki, Finland. Throughout March, Helsinki aggregates 140mm (5.5") of snow.

What are the months with the coldest sea water in Helsinki?

February and March, with an average sea temperature of 1°C (33.8°F), are months with the coldest seawater in Helsinki, Finland.

How cold is the water in March in Helsinki?

In Helsinki, Finland, the average seawater temperature in March is 1°C (33.8°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in March in Helsinki?

In Helsinki, Finland, the average length of the day in March is 11.9h.

How many hours of sunshine does Helsinki have in March?

In Helsinki, Finland, the average sunshine in March is 4.5h.

What is the UV index reading in March in Helsinki?

In Helsinki, Finland, the average daily maximum UV index in March is 1. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.
Average temperature in March - Helsinki, Finland
  • Average high temperature in March: 1.6°C

The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is February (-1.9°C).

  • Average low temperature in March: -4.1°C

The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (-7.4°C).

Average rainfall in March - Helsinki, Finland
  • Average rainfall in March: 38mm

The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the lowest rainfall) is April (32mm).

Average rainfall days in March - Helsinki, Finland
  • Average rainfall days in March: 15 days

The month with the highest number of rainy days is December (20 days).
Months with the lowest number of rainy days are April and May (11 days).

Average snowfall in March - Helsinki, Finland
  • Average snowfall in March: 140mm

The month with the highest snowfall is February (230mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

Average sea temperature in March - Helsinki, Finland
  • Average sea temperature in March: 1°C

The best month for swimming (with the highest average sea temperature) is August (16°C).
Coldest months (with the lowest average sea temperature) are February and March (1°C).

Average daylight in March / Average sunshine in March - Helsinki, Finland
  • Average daylight in March: 11.9h

The month with the longest days is June (Average daylight: 18.8h).
The month with shortest days is December (Average daylight: 6h).

  • Average sunshine in March: 4.5h

The month with most sunshine is June (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 0.9h).

Average UV index in March - Helsinki, Finland
  • Average UV index in March: 1

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 0).