January in Cornwall — the hardest end of the year
Hardest · 1.6/10January averages 8°C (47°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 100 mm, so plan one flexible day in three; you still get about 0 sunny days and 8.3 hours of daylight.
It scores 1.6/10 here, 8th of 12 months, against 6.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Cornwall — 4.8 points higher on the same scale.
February in Cornwall — the hardest end of the year
Hardest · 1.3/10February averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 120 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 1.3/10 here, 10th of 12 months, against 6.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, August is materially better in Cornwall — 5.1 points higher on the same scale.
March in Cornwall — the hardest end of the year
Hardest · 2/10March averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 120 mm this is a genuinely wet month: about 4 sunny days in total, and outdoor plans need an indoor fallback.
It scores 2/10 here, 7th of 12 months, against 6.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, August is materially better in Cornwall — 4.4 points higher on the same scale.
April in Cornwall — the hardest end of the year
Hardest · 4.1/10April averages 10°C (51°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 80 mm, so plan one flexible day in three; you still get about 14 sunny days and 13.5 hours of daylight.
It scores 4.1/10 here, 5th of 12 months, against 6.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Cornwall — 2.3 points higher on the same scale.
May in Cornwall — workable with trade-offs
Trade-offs · 5.5/10May averages 13°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 62 mm, so plan one flexible day in three; you still get about 26 sunny days and 15.2 hours of daylight.
It scores 5.5/10 here, 4th of 12 months, against 6.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
June in Cornwall — workable with trade-offs
Trade-offs · 6.1/10June averages 16°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 50 mm, so plan one flexible day in three; you still get about 28 sunny days and 16.2 hours of daylight.
It scores 6.1/10 here, 2nd of 12 months, against 6.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
July in Cornwall — workable with trade-offs
Trade-offs · 6/10July averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 84 mm, so plan one flexible day in three; you still get about 24 sunny days and 15.8 hours of daylight.
It scores 6/10 here, 3rd of 12 months, against 6.4/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
August in Cornwall — the year's strongest window
Best window · 6.4/10August averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 63 mm, so plan one flexible day in three; you still get about 19 sunny days and 14.3 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Cornwall at 6.4/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
September in Cornwall — the hardest end of the year
Hardest · 3.3/10September averages 16°C (61°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 109 mm this is a genuinely wet month: about 7 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.3/10 here, 6th of 12 months, against 6.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, August is materially better in Cornwall — 3.1 points higher on the same scale.
October in Cornwall — the hardest end of the year
Hardest · 1.4/10October averages 14°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 123 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 1.4/10 here, 9th of 12 months, against 6.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, August is materially better in Cornwall — 5 points higher on the same scale.
November in Cornwall — the hardest end of the year
Hardest · 0.8/10November averages 12°C (53°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 162 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 0.8/10 here, 12th of 12 months, against 6.4/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, August is materially better in Cornwall — 5.6 points higher on the same scale.
December in Cornwall — the hardest end of the year
Hardest · 1/10December averages 9°C (49°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 134 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 1/10 here, 11th of 12 months, against 6.4/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
If your dates are flexible, August is materially better in Cornwall — 5.4 points higher on the same scale.
