Weather in Portsmouth in March

Portsmouth, United States averages a high of 14.8°C (58.6°F) and low of 5.2°C (41.4°F) in March, with 10 rain days and 8.6 hours of daily sunshine. Travel score: 65.7/100 (Good). The best time to visit Portsmouth is May.

High
15°C59°F
Low
5°C41°F
🌧️
10
rain days
☀️
8.6
hrs/day sunshine
💧
69%
humidity
66Good

March in Portsmouth is cool and occasionally wet — good for most activities.

What are the average temperatures in Portsmouth?

JanFebMar15°5°AprMayJunJulAugSepOctNovDec

How much does it rain in Portsmouth in March?

Portsmouth receives an average of 96.2mm of rainfall across 10 rainy days in March. The annual total is 1149.2mm.

JanFebMar10dAprMayJunJulAugSepOctNovDec

What should I pack for Portsmouth in March?

Essentials

👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 15°C
🧶
Sweaters and warm layers
Layer up for comfort

🎉Visiting United States in March?

Don't miss any public holidays — check before you book!

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Data based on 1994–2024 averages · Last updated: 2024-12-31