Cities / Dominica / Saint John Parish

28°

🌤️ Portsmouth weather

Mostly clear. No rain expected in the next few hours.

Feels like 30° Wind 31 km/h E Humidity 83% UV 6 Air Good ☀ 05:53 - 18:11

Right now it is 28° in Portsmouth with mostly clear skies, today's high is 28° with an overnight low of 27° and about 1.2 mm of rain is expected. The sun rises at 05:53 and sets at 18:11, giving 12h 18m of daylight. Over the coming week highs range from 28° to 28° - a steady stretch with little day-to-day change.

Portsmouth is in Saint John Parish, Dominica, sitting 1 m above sea level, with a population of about 4,000. Local time is America/Dominica (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

27° 29° 31° 28° 27° 09:00 · 27.7° · 0 mm 10:00 · 27.8° · 0.1 mm 11:00 · 28° · 0 mm 12:00 · 28° · 0 mm 13:00 · 27.9° · 0 mm 14:00 · 27.9° · 0 mm 15:00 · 27.7° · 0 mm 16:00 · 27.7° · 0 mm 17:00 · 27.6° · 0 mm 18:00 · 27.7° · 0.1 mm 19:00 · 27.8° · 0.1 mm 20:00 · 27.7° · 0.1 mm 21:00 · 27.7° · 0.1 mm 22:00 · 27.7° · 0.2 mm 23:00 · 27.8° · 0.2 mm 00:00 · 27.7° · 0.2 mm 01:00 · 27.7° · 0.2 mm 02:00 · 27.6° · 0.2 mm 03:00 · 27.6° · 0.2 mm 04:00 · 27.5° · 0.1 mm 05:00 · 27.4° · 0.1 mm 06:00 · 27.1° · 0.1 mm 07:00 · 27.8° · 0.1 mm 08:00 · 27.2° · 0 mm

Precipitation

09:00 · 0 mm 09:00 10:00 · 0.1 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm 18:00 · 0.1 mm 18:00 19:00 · 0.1 mm 20:00 · 0.1 mm 21:00 · 0.1 mm 21:00 22:00 · 0.2 mm 23:00 · 0.2 mm 00:00 · 0.2 mm 00:00 01:00 · 0.2 mm 02:00 · 0.2 mm 03:00 · 0.2 mm 03:00 04:00 · 0.1 mm 05:00 · 0.1 mm 06:00 · 0.1 mm 06:00 07:00 · 0.1 mm 08:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
09:00 🌤️ 27.7° 27.7° - Mostly clear
10:00 🌦️ 27.8° 28° 0.1 mm Light rain
11:00 🌤️ 28° 27.8° - Mostly clear
12:00 ☀️ 28° 28.1° - Clear sky
13:00 ☀️ 27.9° 28.4° - Clear sky
14:00 🌤️ 27.9° 28.7° - Mostly clear
15:00 🌤️ 27.7° 28.5° - Mostly clear
16:00 🌤️ 27.7° 28.6° - Mostly clear
17:00 🌤️ 27.6° 28.1° - Mostly clear
18:00 🌦️ 27.7° 28.1° 0.1 mm Light rain
19:00 🌦️ 27.8° 27.9° 0.1 mm Light rain
20:00 🌦️ 27.7° 27.5° 0.1 mm Light rain

Next 16 days

Today🌦️ 28°27°1.2mm Fri 11🌦️ 28°27°2mm Sat 12🌦️ 28°27°4.6mm Sun 13🌦️ 28°27°0.8mm Mon 14🌦️ 28°27°0.8mm Tue 15☁️ 28°27°0.6mm Wed 16🌦️ 28°27°2.1mm Thu 17🌦️ 28°27°1.2mm Fri 18☁️ 28°27° Sat 19🌦️ 28°27°0.9mm Sun 20🌦️ 28°27°0.9mm Mon 21🌦️ 28°27°4.2mm Tue 22🌤️ 28°27°0.9mm Wed 23🌦️ 28°28°1.8mm Thu 24🌦️ 28°28°2.4mm Fri 25🌦️ 28°27°4.8mm
🌦️ TodaySeptember 10th Avg 28° Low 27° at 04:00 High 28° at 11:00 1.2 mm rain Wind ~35 km/h
Rain Clear Clear Clear Rain
00:00 28° 0.1mm
02:00 28° 0.1mm
04:00 27°
06:00 28°
08:00 28°
10:00 28° 0.1mm
12:00 28°
14:00 28°
16:00 28°
18:00 28° 0.1mm
20:00 28° 0.1mm
22:00 28° 0.2mm
🌦️ FridaySeptember 11th Avg 28° Low 27° at 06:00 High 28° at 18:00 2 mm rain Wind ~40 km/h
Rain Rain Clear Rain
00:00 28° 0.2mm
02:00 28° 0.2mm
04:00 28° 0.1mm
06:00 27° 0.1mm
08:00 27°
10:00 27° 0.1mm
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28° 0.1mm
22:00 28° 0.1mm
🌦️ SaturdaySeptember 12th Avg 27° Low 27° at 13:00 High 28° at 00:00 4.6 mm rain Wind ~36 km/h
Clear Rain Rain
00:00 28° 0.1mm
02:00 28°
04:00 27° 0.1mm
06:00 28° 0.1mm
08:00 28° 0.1mm
10:00 28°
12:00 27° 0.1mm
14:00 27° 0.4mm
16:00 27° 0.2mm
18:00 27° 0.2mm
20:00 27° 0.6mm
22:00 28° 0.3mm
🌦️ SundaySeptember 13th Avg 27° Low 27° at 02:00 High 28° at 05:00 0.8 mm rain Wind ~33 km/h
Rain Cloudy
00:00 27° 0.1mm
02:00 27° 0.1mm
04:00 28°
06:00 28°
08:00 27°
10:00 28°
12:00 28°
14:00 27° 0.1mm
16:00 28° 0.1mm
18:00 28°
20:00 28°
22:00 28°
🌦️ MondaySeptember 14th Avg 27° Low 27° at 03:00 High 28° at 18:00 0.8 mm rain Wind ~34 km/h
Rain Cloudy Cloudy
00:00 27°
02:00 27° 0.1mm
04:00 27° 0.2mm
06:00 27°
08:00 27°
10:00 28° 0.1mm
12:00 28°
14:00 27°
16:00 28°
18:00 28°
20:00 28°
22:00 28°
☁️ TuesdaySeptember 15th Avg 28° Low 27° at 02:00 High 28° at 17:00 0.6 mm rain Wind ~29 km/h
Cloudy Rain Cloudy Partly Cloudy Rain Partly Cloudy
00:00 27°
02:00 27°
04:00 27° 0.1mm
06:00 27°
08:00 28°
10:00 28°
12:00 28°
14:00 28°
16:00 28° 0.1mm
18:00 28°
20:00 28°
22:00 28°
🌦️ WednesdaySeptember 16th Avg 27° Low 27° at 02:00 High 28° at 10:00 2.1 mm rain Wind ~30 km/h
Rain Rain Clear
00:00 28° 0.1mm
02:00 27° 0.1mm
04:00 27° 0.1mm
06:00 27° 0.3mm
08:00 28° 0.3mm
10:00 28° 0.1mm
12:00 28°
14:00 28°
16:00 28° 0.1mm
18:00 28°
20:00 27°
22:00 27°
🌦️ ThursdaySeptember 17th Avg 28° Low 27° at 01:00 High 28° at 13:00 1.2 mm rain Wind ~36 km/h
Rain Partly Cloudy Clear
00:00 27° 0.1mm
02:00 27° 0.1mm
04:00 27° 0.2mm
06:00 27° 0.1mm
08:00 28° 0.1mm
10:00 28°
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28°
22:00 28°
☁️ FridaySeptember 18th Avg 28° Low 27° at 04:00 High 28° at 17:00 Wind ~32 km/h
Partly Cloudy Cloudy Partly Cloudy Cloudy
00:00 28°
02:00 28°
04:00 27°
06:00 27°
08:00 28°
10:00 28°
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28°
22:00 28°
🌦️ SaturdaySeptember 19th Avg 27° Low 27° at 05:00 High 28° at 11:00 0.9 mm rain Wind ~32 km/h
Rain Cloudy Partly Cloudy Cloudy
00:00 27° 0.1mm
02:00 28° 0.1mm
04:00 27° 0.2mm
06:00 27°
08:00 27°
10:00 28°
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28°
22:00 27°
🌦️ SundaySeptember 20th Avg 28° Low 27° at 00:00 High 28° at 14:00 0.9 mm rain Wind ~32 km/h
Rain Cloudy Rain
00:00 27° 0.2mm
02:00 27° 0.2mm
04:00 27°
06:00 28°
08:00 28°
10:00 28°
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28°
22:00 28° 0.1mm
🌦️ MondaySeptember 21st Avg 28° Low 27° at 03:00 High 28° at 13:00 4.2 mm rain Wind ~33 km/h
Rain
00:00 28° 0.3mm
02:00 27° 0.3mm
04:00 27° 0.2mm
06:00 27° 0.1mm
08:00 28° 0.1mm
10:00 28° 0.2mm
12:00 28° 0.2mm
14:00 28° 0.2mm
16:00 28° 0.1mm
18:00 28° 0.2mm
20:00 28° 0.2mm
22:00 28° 0.1mm
🌤️ TuesdaySeptember 22nd Avg 28° Low 27° at 01:00 High 28° at 11:00 0.9 mm rain Wind ~35 km/h
Partly Cloudy Clear Rain
00:00 28°
02:00 27°
04:00 27°
06:00 28°
08:00 28°
10:00 28°
12:00 28°
14:00 28°
16:00 28° 0.1mm
18:00 28° 0.1mm
20:00 28° 0.1mm
22:00 28° 0.1mm
🌦️ WednesdaySeptember 23rd Avg 28° Low 28° at 00:00 High 28° at 14:00 1.8 mm rain Wind ~36 km/h
Rain Cloudy Rain
00:00 28° 0.1mm
02:00 28° 0.1mm
04:00 28° 0.1mm
06:00 28° 0.2mm
08:00 28° 0.2mm
10:00 28° 0.1mm
12:00 28°
14:00 28°
16:00 28°
18:00 28°
20:00 28°
22:00 28° 0.1mm
🌦️ ThursdaySeptember 24th Avg 28° Low 28° at 17:00 High 28° at 13:00 2.4 mm rain Wind ~36 km/h
Rain Cloudy Rain
00:00 28° 0.2mm
02:00 28° 0.2mm
04:00 28° 0.2mm
06:00 28° 0.1mm
08:00 28° 0.1mm
10:00 28°
12:00 28°
14:00 28°
16:00 28° 0.1mm
18:00 28° 0.1mm
20:00 28° 0.1mm
22:00 28° 0.1mm
🌦️ FridaySeptember 25th Avg 27° Low 27° at 16:00 High 28° at 11:00 4.8 mm rain Feels 26° Wind ~40 km/h
Rain
00:00 27° 0.2mm
02:00 27° 0.2mm
04:00 27° 0.2mm
06:00 28° 0.3mm
08:00 28° 0.3mm
10:00 28° 0.1mm
12:00 28° 0.1mm
14:00 27° 0.1mm
16:00 27° 0.2mm
18:00 27° 0.2mm
20:00 27° 0.2mm
22:00 27° 0.3mm

Sun

☀️ Sunrise 05:53 · Sunset 18:11

12h 18m of daylight · America/Dominica

Air quality

PM2.5 8.8 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Lagon · 0.4 km Glanvillia · 1.8 km Tanetane · 2.2 km Guillet · 2.5 km Toucari · 3.3 km Picard · 3.4 km

Tools for Portsmouth

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Portsmouth weather

Will it rain in Portsmouth today?

Yes - about 1.2 mm of rain is expected in Portsmouth today.

What is the temperature in Portsmouth right now?

It is 28° in Portsmouth right now, though it feels closer to 30°. Today runs between a low of 27° and a high of 28°.

What time is sunrise and sunset in Portsmouth?

The sun rises at 05:53 and sets at 18:11 local time in Portsmouth today, giving 12h 18m of daylight.

What is the air quality in Portsmouth?

PM2.5 in Portsmouth is currently 8.8 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Portsmouth forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Portsmouth best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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