Plymouth Weather Forecast, Devon PL4 8

Today 17 Aug South West England

Another dry day with strong sunshine for most, albeit occasionally hazy. Perhaps cloudier across the Isles of Scilly. Another breezy day for some with the easterly winds particularly gusty in parts of Cornwall and Devon. Very warm in sheltered spots. Maximum Temperature 25C.

Tonight 17 Aug South West England

Another sunny and warm evening and staying mainly dry overnight. Showers, perhaps with the odd rumble of thunder are possible across Cornwall by the morning. Rather windy and warm in the west and mild elsewhere. Minimum Temperature 13C.

Mon 18 Aug South West England

Another breezy day for some western areas and locally windy in Cornwall with a chance of heavy thundery showers at times. Hazy sunny periods elsewhere. Feeling warm in the sunshine. Maximum Temperature 25C.

Tue 19 Aug South West England

Showers are possible on Tuesday, though many places staying dry. Thereafter, dry with cloudy periods interspersed with sunny spells. Lower temperatures than of late but still warm at times.

Wed 20 Aug South West England

Showers are possible on Tuesday, though many places staying dry. Thereafter, dry with cloudy periods interspersed with sunny spells. Lower temperatures than of late but still warm at times.

Thu 21 Aug South West England

Showers are possible on Tuesday, though many places staying dry. Thereafter, dry with cloudy periods interspersed with sunny spells. Lower temperatures than of late but still warm at times.

Fri 22 Aug South West England

High pressure is likely to be the dominant feature at first bringing widely fine and dry weather whilst a generally northerly flow leads to rather cool conditions. This will be increasingly eroded from the west as frontal systems start to move in from the Atlantic through the weekend, leading to more changeable conditions. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Hurricane Erin. This likely progresses towards the UK through the early part of the week. The changeable period will likely continue through the last week of August, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Sat 23 Aug South West England

High pressure is likely to be the dominant feature at first bringing widely fine and dry weather whilst a generally northerly flow leads to rather cool conditions. This will be increasingly eroded from the west as frontal systems start to move in from the Atlantic through the weekend, leading to more changeable conditions. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Hurricane Erin. This likely progresses towards the UK through the early part of the week. The changeable period will likely continue through the last week of August, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Plymouth Weather Forecast

Today 17 Aug South West England

Tonight 17 Aug South West England

Mon 18 Aug South West England

Tue 19 Aug South West England

Wed 20 Aug South West England

Thu 21 Aug South West England

Fri 22 Aug South West England

Sat 23 Aug South West England

Temperature Forecast Met Office

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Plymouth Temperature Statistics

August Temperature

Mount Batten (2km)

Lowest 3 January, 2025

Average 2025

Highest 12 July, 2025

Lowest 3 July, 2025

Average July

Highest 12 July, 2025

Lowest 2 August, 2025

Average August

Highest 12 August, 2025

Climate (2020–Present)

Mount Batten (2km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025