Plymouth, United Kingdom Climate by Month
Plymouth, England, United Kingdom
Mild summers and cool winters, with rain spread through the year.
The climate in Plymouth is one of mild summers and cool winters, with rain spread through the year. July is the warmest month, with highs around 69°F (20°C); January is the coolest at 49°F (9°C), and nights dip to 40°F (4°C). It gets 39 in (993 mm) of rain a year, spread across the months. The air is humid, averaging 83% relative humidity.
- Warmest month
- 69°F(20°C)
- Average high, July
- Coldest nights
- 40°F(4°C)
- Average low, February
- Rain per year
- 39 in(993 mm)
- No clear rainy season
- Humidity
- 83%
- Sunniest: June
Best and worst months in Plymouth
Best for weatherJuly and August are the best time for weather in Plymouth: highs near 69°F (20°C) and about 2.9 in (73 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 49°F (9°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Plymouth weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 49°F(9°C) | 40°F(4°C) | 3.9 in(100 mm) | 90% | 0.8 |
| FebFebruary | 49°F(9°C) | 40°F(4°C) | 3.2 in(82 mm) | 81% | 1.5 |
| MarMarch | 52°F(11°C) | 41°F(5°C) | 2.6 in(66 mm) | 84% | 2.6 |
| AprApril | 56°F(13°C) | 43°F(6°C) | 2.6 in(66 mm) | 83% | 4.1 |
| MayMay | 61°F(16°C) | 48°F(9°C) | 2.3 in(59 mm) | 76% | 5.0 |
| JunJune | 65°F(19°C) | 53°F(12°C) | 2.3 in(59 mm) | 81% | 5.5 |
| JulJulyBest | 69°F(20°C) | 56°F(14°C) | 2.8 in(70 mm) | 78% | 5.0 |
| AugAugustBest | 69°F(20°C) | 56°F(14°C) | 3.0 in(75 mm) | 83% | 4.3 |
| SepSeptember | 65°F(18°C) | 53°F(12°C) | 2.6 in(65 mm) | 82% | 3.2 |
| OctOctober | 59°F(15°C) | 49°F(10°C) | 4.5 in(114 mm) | 83% | 1.8 |
| NovNovember | 54°F(12°C) | 44°F(7°C) | 4.7 in(119 mm) | 84% | 1.0 |
| DecDecember | 50°F(10°C) | 41°F(5°C) | 4.6 in(118 mm) | 86% | 0.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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