Portsmouth Weather History Saint John, Dominica

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Mon 15 Dec, 2025 Weather in Portsmouth

Sunrise: 06:25 AM Sunset: 05:38 PM	Moonrise: 02:39 AM Moonset: 02:19 PM	Max: 26.5 °c	Min: 24.5 °c	Avg: 25.5 °c	Precip: 6.90 mm	Max Wind: 15.1 kph

	Mon 15 0:00 am	Mon 15 3:00 am	Mon 15 6:00 am	Mon 15 9:00 am	Mon 15 12:00 pm	Mon 15 3:00 pm	Mon 15 6:00 pm	Mon 15 9:00 pm
Icon
Temp	25.0°c	24.9°c	24.9°c	26.0°c	26.5°c	26.3°c	25.4°c	24.8°c
Wind	14.0 kmph	15.1 kmph	12.6 kmph	13.3 kmph	9.7 kmph	12.6 kmph	10.8 kmph	13.3 kmph
Precip	0.50 mm	0.50 mm	0.40 mm	0.10 mm	0.20 mm	0.60 mm	0.10 mm	0.00 mm
Cloud	85%	72%	74%	88%	71%	83%	71%	80%
Humidity	83%	83%	83%	77%	73%	73%	75%	81%
Pressure	1015 mb	1013 mb	1015 mb	1017 mb	1015 mb	1013 mb	1014 mb	1015 mb

Portsmouth Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	25°C / 77°F	23°C / 74°F	24°C / 75°F	167 hours	34.81 mm / 1.37 In	1 days	1016 mb / 30 In
February	25°C / 76°F	23°C / 73°F	24°C / 75°F	166 hours	31.89 mm / 1.26 In	1 days	1015 mb / 30 In
March	25°C / 77°F	23°C / 74°F	24°C / 75°F	179 hours	32.67 mm / 1.29 In	1 days	1015 mb / 30 In
April	26°C / 78°F	24°C / 74°F	24°C / 76°F	142 hours	50.80 mm / 2.00 In	2 days	1015 mb / 30 In
May	26°C / 79°F	24°C / 76°F	25°C / 78°F	126 hours	65.90 mm / 2.59 In	4 days	1015 mb / 30 In
June	27°C / 80°F	25°C / 77°F	26°C / 78°F	117 hours	56.42 mm / 2.22 In	4 days	1016 mb / 30 In
July	27°C / 80°F	25°C / 77°F	26°C / 79°F	120 hours	98.99 mm / 3.90 In	6 days	1016 mb / 30 In
August	27°C / 81°F	25°C / 77°F	26°C / 79°F	132 hours	144.61 mm / 5.69 In	9 days	1014 mb / 30 In
September	27°C / 81°F	26°C / 78°F	26°C / 80°F	143 hours	139.05 mm / 5.47 In	8 days	1013 mb / 30 In
October	27°C / 81°F	25°C / 78°F	26°C / 79°F	135 hours	131.66 mm / 5.18 In	10 days	1012 mb / 30 In
November	26°C / 79°F	25°C / 76°F	26°C / 78°F	119 hours	119.15 mm / 4.69 In	6 days	1012 mb / 30 In
December	25°C / 78°F	24°C / 75°F	25°C / 76°F	153 hours	57.80 mm / 2.28 In	3 days	1014 mb / 30 In

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