Thermograph

Weather in Portsmouth in March

In an average March, Portsmouth sees a daily high around 10°C and a low around 4°C, based on 1980–2026 of local climate records.

Average high10°C
Typical high range6°C to 13°C
Average low4°C
Typical low range0°C to 8°C
Average daily precipitation3 mm

March records

The most extreme March on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total March accumulation.

High

Highest 20°C 2012-03-28
Lowest -1°C 2018-03-01

Low

Highest 11°C 2017-03-29
Lowest -5°C 1986-03-03

Feels-like

Highest 11°C 2017-03-29
Lowest -13°C 2018-03-01

Humidity

Highest 10.0 g/m³ 2011-03-31
Lowest 3.0 g/m³ 2018-03-01

Wind

Highest 57 km/h 1987-03-27
Lowest 6 km/h 2009-03-31

Gust

Highest 122 km/h 1987-03-27
Lowest 13 km/h 2009-03-31

Precip

Wettest 124 mm 2001
Driest 8 mm 1990

See Portsmouth's live weather grade →

Visiting Portsmouth in March? See how its comfort stacks up against where you live.

Compare Portsmouth with your city →

‹ February · Portsmouth climate overview · April ›