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Weather in Cornwall for March 2026

Your guide to Cornwall weather in March - trends and predictions

    Official Weather Alert ⚠️

  • High Wind Watch - See hour by hour.

    • Snow Forecast ❄️

  • Cornwall is transformed into a snow paradise in March, with more than 20 snowy days on average.
    According to Cornwall snow forecast for March 2026, 9 snowy days are expected until the end of the month. The closest date with snow is Monday, 16 March.

    • Temperatures

  • Until now, March 2026 in Cornwall has been nearly identical to the historical average, with a temperature of 2.9 °C (showing only a slight deviation of -0.2 °C).

  • The forecast for the next days in Cornwall predicts temperatures to be around 2 °C, close to the historical average.

  • In general, the average temperature in Cornwall at the beginning of March is 2.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 4.7 °C by the end of March.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
6
Dry days
Average rainy days
3
Rainy days
Average snowy days
22
Snow days
Average temperatures
4°/-3°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Cornwall Weather March

Move between months or click on a day
February
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate snow
-2°
2
Light snow
-2°
3
Patchy moderate snow
0°
4
Moderate snow
5°
5
Light snow showers
7°
6
Moderate rain
4°
7
Overcast
4°
8
Overcast
4°
9
Overcast
6°
10
Freezing fog
4°
11
Moderate snow
6°
12
Overcast
2°
13
Overcast
3°
14
Heavy snow
6°
15
Weather Alert Partly cloudy
2°
16
Heavy rain
15°
17
Moderate or heavy snow showers
-6°
18
Light freezing rain
-3°
19
Light snow
2°
20
Fog
6°
21
Patchy rain possible
4°
22
Moderate snow
1°
23
Light freezing rain
-1°
24
Heavy snow
-1°
25
Cloudy
0°
26
Partly cloudy
7°
27
Patchy rain possible
3°
28
Sunny
5°
29
Moderate or heavy snow showers
5°
30
Light snow showers
3°
31
Heavy snow
10°

Temperatures trend during March in Cornwall

See the weather trend as well as the moving average line

March weather in Cornwall day by day

Click on a date for more information
February April
Date Weather Temperatures Rain Snow More
1 Mar. Moderate snow
Moderate snow
 -2° /-9° 7.3 mm 2.3 cm
2 Mar. Light snow
Light snow
 -2° /-10° 0.1 mm 0 cm
3 Mar. Patchy moderate snow
Patchy moderate snow
 0° /-10° 0.2 mm 0.1 cm
4 Mar. Moderate snow
Moderate snow
 5° /-3° 2.5 mm 0.2 cm
5 Mar. Light snow showers
Light snow showers
 7° /-1° 5.2 mm 0 cm
6 Mar. Moderate rain
Moderate rain
 4° /-5° 12.6 mm 0 cm
7 Mar. Overcast
Overcast
 4° /-4° 6.5 mm 0.1 cm
8 Mar. Overcast
Overcast
 4° /-4° 1.6 mm 0 cm
9 Mar. Overcast
Overcast
 6° /-3° 2.5 mm 0.2 cm
10 Mar. Freezing fog
Freezing fog
 4° /-4° 6.9 mm 2.3 cm
11 Mar. Moderate snow
Moderate snow
 6° /-3° 23.1 mm 0.4 cm
12 Mar. Overcast
Overcast
 2° /-4° 8.5 mm 0 cm
13 Mar. Overcast
Overcast
 3° /-4° 3.1 mm 2.1 cm
14 Mar. Heavy snow
Heavy snow
 6° /-2° 4.6 mm 2.9 cm
15 Mar. Partly cloudy
Partly cloudy
 2° /-7° 0 mm 0 cm
16 Mar. Heavy rain
Heavy rain
 15° /0° 22.9 mm 1.5 cm
17 Mar. Moderate or heavy snow showers
Moderate or heavy snow showers
 -6° /-9° 11.8 mm 5.7 cm
18 Mar. Light freezing rain
Light freezing rain
 -3° /-11° 0.5 mm 0.3 cm
19 Mar. Light snow
Light snow
 2° /-5° 2 mm 1.5 cm
20 Mar. Fog
Fog
 6° /1° 0 mm 0 cm
21 Mar. Patchy rain possible
Patchy rain possible
 4° /0° 2.2 mm 0.1 cm
22 Mar. Moderate snow
Moderate snow
 1° /-2° 1.6 mm 1.1 cm
23 Mar. Light freezing rain
Light freezing rain
 -1° /-5° 2.5 mm 1.8 cm
24 Mar. Heavy snow
Heavy snow
 -1° /-6° 4.1 mm 2.9 cm
25 Mar. Cloudy
Cloudy
 0° /-12° 0 mm 0 cm
26 Mar. Partly cloudy
Partly cloudy
 7° /1° 0 mm 0 cm
27 Mar. Patchy rain possible
Patchy rain possible
 3° /-1° 0.7 mm 0 cm
28 Mar. Sunny
Sunny
 5° /-5° 0 mm 0 cm
29 Mar. Moderate or heavy snow showers
Moderate or heavy snow showers
 5° /-2° 37.1 mm 27 cm
30 Mar. Light snow showers
Light snow showers
 3° /-3° 32.5 mm 3.9 cm
31 Mar. Heavy snow
Heavy snow
 10° /-1° 4.3 mm 0.7 cm
Next
Important Notice
Our weather forecast for Cornwall in March is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cornwall forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Cornwall in March - FAQ

What are the expected maximum and minimum temperatures in Cornwall during March?

Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Cornwall during March?

Significant rainfall exceeding 192.5 mm is expected in Cornwall during March, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Cornwall in March 2026?

Cornwall experiences an average snowfall of 57.86 cm during March, occurring over 22 days.

What are the typical wind conditions in Cornwall during March?

The average wind speed in Cornwall during March is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

Cornwall snow forecast March 2026

Track daily snowfall levels and discover Cornwall’s snowy potential this March ❄️
On average, Cornwall sees 22 snowy days during March, with approximately 57.9 cm of total snowfall.

March rainfall patterns in Cornwall

Explore the daily rainfall trends and prepare for Cornwalls March weather 💧
Typically, Cornwall has 3 rainy days in March with a total of 192.5 mm of rainfall.

Quick links

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Location coordinates Where is Cornwall?

Get accurate weather forecasts for Cornwall, located at latitude 45.018 and longitude -74.728. Stay updated with localized weather information tailored for Cornwall.

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