March weather forecast
Saint Helier, Jersey

The Elizabeth Castle found on the Tidal Island in Saint Helier Parish, Jersey
The Elizabeth Castle found on the Tidal Island in Saint Helier Parish, Jersey

Weather in March

March, the first month of the spring in Saint Helier, is still a chilly month, with an average temperature fluctuating between 7.5°C (45.5°F) and 9.9°C (49.8°F).

Temperature

In Saint Helier, the average high-temperature in March is practically the same as in February - a still chilly 9.9°C (49.8°F). In Saint Helier, the average low-temperature is 7.5°C (45.5°F).

Humidity

In Saint Helier, the average relative humidity in March is 80%.

Rainfall

In Saint Helier, in March, it is raining for 15.2 days, with typically 37mm (1.46") of accumulated precipitation. In Saint Helier, during the entire year, the rain falls for 189 days and collects up to 538mm (21.18") of precipitation.

Snowfall

January through March, November and December are months with snowfall. March is the last month it regularly snows. During 0.2 snowfall days, Saint Helier aggregates 1mm (0.04") of snow. In Saint Helier, during the entire year, snow falls for 1.4 days and aggregates up to 6mm (0.24") of snow.

Sea temperature

The months with the coldest seawater are February and March, with an average sea temperature of 9°C (48.2°F).
Note: Swimming in 9°C (48.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Saint Helier, the average length of the day in March is 11h and 55min.
On the first day of March in Saint Helier, sunrise is at 06:50 and sunset at 17:51 GMT. On the last day of the month, sunrise is at 06:47 and sunset at 19:37 BST.
Note: On Sunday, 27. March 2022, at 01:00, Daylight Saving Time starts, and the time zone changes from GMT to BST. Daylight Saving Time lasts until Sunday, 30. October 2022, at 02:00; consequently, the time zone reverts from BST to GMT.

Sunshine

In Saint Helier, Jersey, the average sunshine in March is 6.4h.

UV index

The average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 3 in March interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in March in Saint Helier?

The average high-temperature, in March, in Saint Helier, is 9.9°C (49.8°F), while the average low-temperature is 7.5°C (45.5°F).

What is the average humidity in March in Saint Helier?

In Saint Helier, the average relative humidity in March is 80%.

How much does it rain in Saint Helier in March?

In Saint Helier, Jersey, in March, during 15.2 rainfall days, 37mm (1.46") of precipitation is typically accumulated.

What is the last month it snows in Saint Helier?

March is the last month it regularly snows. During 0.2 snowfall days, in March, Saint Helier aggregates 1mm (0.04") of snow.

What months are the sea coldest in Saint Helier?

February and March, with an average sea temperature of 9°C (48.2°F), are months with the coldest seawater in Saint Helier, Jersey.

How cold is the water in March in Saint Helier?

In Saint Helier, the average seawater temperature in March is 9°C (48.2°F). Swimming in 9°C (48.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in March in Saint Helier?

The average day length in March in Saint Helier, Jersey, is 11h and 55min.

What time are sunrise and sunset in March in Saint Helier?

In March, on the first day of the month, sunrise is at 06:50 and sunset at 17:51 GMT. On the last day of the month, in Saint Helier, sunrise is at 06:47 and sunset at 19:37 BST.

When does Daylight Saving Time (DST) start in March in Saint Helier?

On Sunday, 27. March 2022, at 01:00, Daylight Saving Time starts in Saint Helier, Jersey, and the time zone changes from GMT to BST. DST ends on Sunday, 30. October 2022, at 02:00.

How many hours of sunshine does Saint Helier have in March?

In March, the average sunshine duration is 6.4h.

What is the UV index intensity in March in Saint Helier?

In March, the average daily maximum UV index in Saint Helier, Jersey, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in March
Saint Helier, Jersey

Average temperature in March - Saint Helier, Jersey
  • Average high temperature in March: 9.9°C

The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (9°C).

  • Average low temperature in March: 7.5°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).

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Average pressure in March
Saint Helier, Jersey

Average pressure in March - Saint Helier, Jersey
  • Average pressure in March: 1016.3mbar

The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).

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Average wind speed in March
Saint Helier, Jersey

Average wind speed in March - Saint Helier, Jersey
  • Average wind speed in March: 27.9km/h

The windiest month (with the highest average wind speed) is December (34km/h).
The calmest month (with the lowest average wind speed) is July (20.4km/h).

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Average humidity in March
Saint Helier, Jersey

Average humidity in March - Saint Helier, Jersey
  • Average humidity in March: 80%

The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are November and December (78%).

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Average rainfall in March
Saint Helier, Jersey

Average rainfall in March - Saint Helier, Jersey
  • Average rainfall in March: 37mm

The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (25mm).

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Average rainfall days in March
Saint Helier, Jersey

Average rainfall days in March - Saint Helier, Jersey
  • Average rainfall days in March: 15.2 days

The month with the highest number of rainy days is November (21.2 days).
The months with the least rainy days are May and July (12.2 days).

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Average snowfall in March
Saint Helier, Jersey

Average snowfall in March - Saint Helier, Jersey
  • Average snowfall in March: 1mm

The month with the highest snowfall is January (2mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in March
Saint Helier, Jersey

Average snowfall days in March - Saint Helier, Jersey
  • Average snowfall days in March: 0.2 days

The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature in March
Saint Helier, Jersey

Average sea temperature in March - Saint Helier, Jersey
  • Average sea temperature in March: 9°C

The best month for swimming (with the highest average sea temperature) is August (17°C).
The coldest months (with the lowest average sea temperature) are February and March (9°C).

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Average daylight in March /
Average sunshine in March
Saint Helier, Jersey

Average daylight in March / Average sunshine in March - Saint Helier, Jersey
  • Average daylight in March: 11h and 55min

The month with the longest days is June (Average daylight: 16h and 10min).
The month with the shortest days is December (Average daylight: 8h and 17min).

  • Average sunshine in March: 6h and 24min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).

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Average sunshine days in March
Saint Helier, Jersey

Average sunshine days in March - Saint Helier, Jersey
  • Average sunshine days in March: 13.2 days

The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is November (5.8 days).

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Average UV index in March
Saint Helier, Jersey

Average UV index in March - Saint Helier, Jersey
  • Average UV index in March: 3

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January and February (UV index 2).

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Average cloud cover in March
Saint Helier, Jersey

Average cloud cover in March - Saint Helier, Jersey
  • Average cloud cover in March: 49

The months with the most cloud cover are January, November and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in March
Saint Helier, Jersey

Average visibility in March - Saint Helier, Jersey
  • Average visibility in March: 10km

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).

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