Temperature Today in Portsmouth, NH: Real-Time Weather Forecast
Temperature today in Portsmouth, New Hampshire delivers live current temperature observations, hourly forecast trendlines, and 7-day extended outlooks for Portsmouth residents and visitors.
Hourly Temperature Forecast (Next 24 Hours)
7-Day Extended Weather & Temperature Outlook
Current Weather Metrics & Atmospheric Conditions
Wind movement is creating a cooler sensation on exposed skin.
Optimal comfort range for indoor and outdoor activity.
Minimal sun protection needed. Safe for outdoor activities.
Moderate breeze. Leaves and twigs in constant motion.
High pressure system promoting stable, clear weather.
Visibility range: 27 km
What to Wear Today (61°) & Daily Comfort Guidance
Recommended Outfit
Light cotton shirt, denim or chinos, and a breathable light cardigan.
Umbrella Advised
Rain precipitation is recorded or probable today. Carry an umbrella or waterproof hooded jacket.
Fitness Outlook:
Wet SurfaceRain showers active. Ensure water-resistant gear and slip-resistant footwear.
Temperature Today in Portsmouth, NH: Climate & Weather Profile
Detailed meteorological analysis, seasonal baselines, and diurnal patterns for residents and travelers in Portsmouth, New Hampshire.
Atmospheric Dynamics & Microclimates
Portsmouth is moderated by maritime ocean currents, generating a temperate maritime or Mediterranean profile with tempered seasonal fluctuations, gentle sea breezes, and reduced extreme temperature variance compared to inland basins.
Regional Microclimate Note
Coastal marine layers and localized morning fog frequently roll onshore, moderating morning temperatures before burning off into sunny, temperate afternoons across the Portsmouth metro area.
Seasonal Norms
Geographical Positioning
Proximity to the Pacific/Atlantic ocean acts as a giant thermal buffer, stabilizing air temperatures and producing steady diurnal ventilation across New Hampshire's coastal corridors.
Clothing & Thermal Comfort Guide
Breathable layers are ideal. A light windbreaker or sweater is recommended for early morning coastal fog or late evening ocean onshore breezes.
Other Major Cities in New Hampshire
Frequently Asked Questions About Portsmouth Weather
Local answers regarding temperature trends, humidity, and forecast updates in Portsmouth, New Hampshire.
The current temperature today in Portsmouth, New Hampshire is updated live every 10 minutes using automated weather sensors and regional airport stations. You can toggle between Fahrenheit (°F) and Celsius (°C) using the unit selector at the top.
Portsmouth experiences a maritime humid continental atlantic harbor climate. Daily temperatures vary based on seasonal fronts, local elevation, and regional atmospheric currents across New Hampshire. Check the 24-hour thermal graph above for immediate trends.
Apparent temperature ("feels like") in Portsmouth calculates the combined biological impact of air temperature, relative humidity, and surface wind speed. In warmer months, high humidity elevates the heat index; during cooler months, brisk winds accelerate skin heat loss (wind chill).
The interactive 24-hour bar and 7-day daily outlook above provide real-time precipitation probabilities, cloud cover percentages, UV index peaks, and expected day highs and night lows for Portsmouth.