Portishead Climate by Month
Portishead, England, United Kingdom
Mild summers and cool winters, with rain spread through the year.
Mild summers and cool winters, with rain spread through the year: that's Portishead's climate in short. July is the warmest month, with highs around 71°F (21°C); January is the coolest at 47°F (8°C), and nights dip to 37°F (3°C). It gets 36 in (921 mm) of rain a year, spread across the months. The air is humid, averaging 81% relative humidity.
- Warmest month
- 71°F(21°C)
- Average high, July
- Coldest nights
- 37°F(3°C)
- Average low, February
- Rain per year
- 36 in(921 mm)
- No clear rainy season
- Humidity
- 81%
- Sunniest: June
Best and worst months in Portishead
Best for weatherThe most comfortable weather comes in July and August, with highs around 70°F (21°C) and about 2.9 in (74 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 47°F (8°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)
Portishead weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 47°F(8°C) | 37°F(3°C) | 3.4 in(87 mm) | 88% | 0.8 |
| FebFebruary | 47°F(9°C) | 37°F(3°C) | 2.6 in(65 mm) | 88% | 1.4 |
| MarMarch | 51°F(11°C) | 39°F(4°C) | 2.6 in(65 mm) | 78% | 2.5 |
| AprApril | 56°F(14°C) | 42°F(6°C) | 2.2 in(56 mm) | 76% | 3.9 |
| MayMay | 62°F(17°C) | 47°F(8°C) | 2.4 in(60 mm) | 76% | 5.0 |
| JunJune | 67°F(20°C) | 52°F(11°C) | 2.5 in(64 mm) | 75% | 5.3 |
| JulJulyBest | 71°F(21°C) | 56°F(13°C) | 2.6 in(65 mm) | 76% | 5.1 |
| AugAugustBest | 70°F(21°C) | 55°F(13°C) | 3.2 in(82 mm) | 78% | 4.2 |
| SepSeptember | 65°F(19°C) | 52°F(11°C) | 2.9 in(74 mm) | 83% | 3.0 |
| OctOctober | 59°F(15°C) | 47°F(8°C) | 3.9 in(100 mm) | 81% | 1.7 |
| NovNovember | 52°F(11°C) | 42°F(6°C) | 4.1 in(104 mm) | 91% | 0.9 |
| DecDecember | 48°F(9°C) | 38°F(4°C) | 3.9 in(99 mm) | 85% | 0.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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