March weather forecast
Lisbon, Portugal

Transitioning towards spring, March in Lisbon brings a new sense of vitality to the city’s weather. There is a clear surge in the temperature, with the maximum rising to 18.8°C (65.8°F). This month marks one of the most significant diversions from winter, with the rainfall not only decreasing, but the city also enjoying more hours of daylight. With the increase in sunlight, the city starts becoming a much more inviting location for tourism-related activities. The rise in city temperatures also prompts the sea temperatures to start warming up.

Temperature

Lisbon's average high-temperature marks a still refreshing 18.8°C (65.8°F) with the advent of March, closely mirroring that of the preceding month. In Lisbon, the average temperature during the nights of March drops to a cool 11°C (51.8°F).

Rainfall

In Lisbon, during March, the rain falls for 13 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, in Lisbon, there are 112 rainfall days, and 774mm (30.47") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 15.1°C (59.2°F), March is the month with the coldest seawater in Lisbon.
Note: Swimming in water at 15.1°C (59.2°F) is not a pleasing experience for the majority. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), controlling breathing becomes increasingly hard.

Daylight

In Lisbon, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 07:07 and sunset at 18:29. On the last day of March, sunrise is at 06:21 and sunset at 18:59 WET.

Sunshine

In Lisbon, Portugal, the average sunshine in March is 7h.

UV index

In March, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In March, the maximum UV index of 5 suggests these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.