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Climate in Penzance · Met Office 1991–2020 averages

Few UK towns have milder winter nights than Penzance

Sunny July days climb to about 19.2°C (67°F). By warm days alone, it ranks cooler than 93% of UK towns. Of all months, November brings the most rain and May the least. Long walks are most pleasant from June to September, when afternoons reach 17–19°C.

July afternoons: cooler than 88% of UK towns
January nights: milder than almost every UK town
Rain a year: wetter than 90% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Penzance at a glance

Each month’s typical high and low, in °C.

Jan10°C5°C
Feb9°C5°CColdest nights
Mar11°C5°C
Apr12°C7°C
May15°C9°C
Jun17°C11°C
Jul19°C13°CWarmest
Aug19°C13°C
Sep18°C12°C
Oct15°C10°C
Nov now12°C7°CWettest
Dec10°C6°C
A normal year

What a year in Penzance feels like

Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.

Winter
10°C / 5°C
50°F / 42°F · 385 mm of rain, the wettest season
Spring
13°C / 7°C
55°F / 44°F · 232 mm of rain
Summer
19°C / 13°C
65°F / 55°F · 2 days of 25°C+ a year
Autumn
15°C / 10°C
59°F / 50°F · 360 mm of rain
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 1,221 mm of rain a year

November is the wettest month and May the driest. About 36 days a year bring 10 mm (0.4 in) or more. 11th wettest of 35 Cornwall towns of 2,500+.

1,221 mm
Rain a year (48 in)
Wetter than 90% of UK towns
36
Days a year with 10 mm of rain or more
1,611 hrs
Sunshine a year at Camborne
12 miles away

Rain by month

Millimetres

148 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Camborne

208 h
JFMAMJJASOND
Frost & warm days

8 air frosts and 2 days of 25°C a year

On about 8 nights a year the air drops below freezing; days that stay below freezing are rare. About 2 days a year reach 25°C (77°F).

8
Air frosts a year (below 0°C)
Fewer frosts than almost every UK town
0
Days that stay below 0°C
2
Days of 25°C (77°F) or more
Fewer warm days than 93% of UK towns

Day counts are 1991–2020 averages from the Met Office’s 2 km grid. The Met Office calls a day of 25°C or more a summer day and a night below 0°C an air frost; ground frosts, on grass, come more often.

Weather station

The Met Office station at Camborne

Camborne is 12 miles north-east of Penzance, 87 m (285 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.

MonthHighLowRainAir frostsSun (hours)
January9.2°C4.9°C121 mm2.260
February9.1°C4.6°C95 mm2.182
March10.2°C5.4°C72 mm1.1121
April12.1°C6.6°C73 mm0.0181
May14.5°C8.8°C61 mm0.0208
June16.9°C11.2°C63 mm0.0205
July18.7°C13.2°C69 mm0.0190
August19.0°C13.4°C79 mm0.0180
September17.5°C12.0°C78 mm0.0154
October14.6°C10.0°C111 mm0.0108
November11.8°C7.4°C130 mm0.268
December9.9°C5.6°C126 mm1.754
Year13.6°C8.6°C1,076 mm71,611

Met Office historic station data, Camborne, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.

Compared with other towns

How Penzance compares

Against the 2,537 towns and cities of 2,500 or more across the UK, each with its own Met Office averages, and its place among Cornwall towns that size.

July afternoons19.2°C (67°F)
Cooler than 88% of UK towns25th warmest of 35 Cornwall towns
January nights5.3°C (42°F)
Milder than almost every UK townThe mildest of 35 Cornwall towns
Rain a year1,221 mm (48 in)
Wetter than 90% of UK towns11th wettest of 35 Cornwall towns
Air frosts a year8 nights
Fewer frosts than almost every UK town31st frostiest of 35 Cornwall towns
Days of 25°C or more2 days
Fewer warm days than 93% of UK towns22nd most 25°C days of 35 Cornwall towns
Next door

Nearby towns’ climate

The nearest towns of 1,000+ within 12 miles: a hill, a valley or the sea can make a real difference over a few miles.

TownJuly highJanuary lowRain a year
Penzance19.2°C5.3°C1,221 mm
Longrock 1.1 mi19.0°C about the same5.0°C about the same1,210 mm
Newlyn 1.3 mi19.2°C about the same5.2°C about the same1,228 mm
Marazion 3.3 mi19.3°C about the same5.2°C about the same1,094 mm
Crowlas 3.4 mi19.0°C about the same4.9°C about the same1,216 mm
Goldsithney 4.7 mi19.3°C about the same5.0°C about the same1,097 mm
St Erth 6.0 mi19.5°C about the same5.1°C about the same1,067 mm
Month by month

Penzance weather by month

Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).

MonthHighLowMeanRain
January9.9°C 50°F5.3°C 42°F7.6°C128 mm 5.0 in
February9.5°C 49°F4.8°C 41°F7.2°C110 mm 4.3 in
March10.5°C 51°F5.5°C 42°F8.0°C87 mm 3.4 in
April12.4°C 54°F6.5°C 44°F9.5°C78 mm 3.1 in
May14.9°C 59°F8.8°C 48°F11.8°C67 mm 2.6 in
June17.5°C 63°F11.3°C 52°F14.3°C70 mm 2.8 in
July19.2°C 67°F13.2°C 56°F16.1°C80 mm 3.1 in
August19.2°C 66°F13.3°C 56°F16.2°C94 mm 3.7 in
September17.7°C 64°F11.9°C 53°F14.8°C88 mm 3.5 in
October14.9°C 59°F10.0°C 50°F12.5°C124 mm 4.9 in
November12.2°C 54°F7.5°C 45°F9.8°C148 mm 5.8 in
December10.4°C 51°F5.8°C 42°F8.1°C148 mm 5.8 in
Year14.0°C8.7°C11.3°C1,221 mm
Sources

Where Penzance’s numbers come from

Averages over 30 years, not a forecast.

  • Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 1 Met Office 2 km grid square whose centre lies inside Penzance’s built-up area.
  • Highs and lows: the Met Office publishes average daily maxima and minima on its 12 km grid; each is moved by the difference between the town’s 2 km mean temperature and the 12 km square’s, which carries the town’s own height and setting over.
  • Weather station and sunshine: Met Office historic station data for Camborne, 12 miles away, months of 1991–2020 averaged.
  • Comparisons: every town and city of 2,500 or more across the UK, all four nations, read the same way.

Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.

Questions about Penzance’s climate

How warm does Penzance get in summer?

July is the warmest month, with average highs of 19.2°C (67°F). About 2 days a year reach 25°C (77°F), fewer than 93% of UK towns.

How cold does Penzance get in winter?

February nights average 4.8°C (41°F). The air drops below freezing on about 8 nights a year, and about 0 days a year stay below freezing all day.

How much rain does Penzance get?

About 1,221 mm (48 in) a year, more than 90% of UK towns. November is the wettest month (148 mm) and May the driest (67 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Camborne (12 miles away), averages 1,611 hours of bright sunshine a year. Sunshine isn’t on the town grid, so this is the station’s figure.

Where do these figures come from?

The Met Office’s HadUK-Grid 1991–2020 averages, which turn thousands of weather stations into a map of the UK in 2 km squares; the page reads the squares inside Penzance. They are 30-year averages, not a forecast.

Contains Met Office data © Crown copyright 2026, Open Government Licence v3.0. HadUK-Grid 1991–2020 averages via the Met Office Climate Data Portal; station averages from Met Office historic station data. Today’s forecast for Penzance →

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.