Portsmouth Weather in March

March in Portsmouth typically sees daytime highs of 11°C (52°F) and nighttime lows of 5°C (41°F). With the least rainfall of the year, it's a reliably dry month.

Rainfall in Portsmouth in March

Expect the least amount of rain this month, making it a good opportunity for outdoor activities, even though days are on the cooler side. Historically, approximately 14 days this month are expected to have rain, averaging 54 mm (2.1 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Portsmouth in March

March in Portsmouth sees highs of 11°C (52°F) and lows of 5°C (41°F) overnight. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Portsmouth in March

The month brings about 119 hours of sunlight, offering a comfortable mix of sun and overcast.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Portsmouth.