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Weather in Penzance for September 2026

Your guide to Penzance weather in September - trends and predictions

    Temperatures

  • So far, September 2026 in Penzance is slightly warmer than the historical average by 0.6 °C.

  • The forecast for the next days in Penzance predicts temperatures to be around 17 °C, close to the historical average.

  • In general, the average temperature in Penzance at the beginning of September is 17.4 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 17.4 °C by the end of September.

    • Rain 🌧️

  • Penzance experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 135.9 mm.

    • More

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

Average dry days
8
Dry days
Average rainy days
22
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/13°
Temperatures
Average wind speed
32 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Penzance Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
17°
2
Patchy rain possible
18°
3
Patchy rain possible
18°
4
Patchy rain possible
17°
5
Moderate or heavy rain shower
17°
6
Heavy rain at times
18°
7
Moderate rain at times
17°
8
Moderate or heavy rain shower
16°
9
Overcast
16°
10
Moderate rain at times
17°
11
Patchy rain possible
16°
12
Moderate rain at times
16°
13
Partly cloudy
16°
14
Sunny
17°
15
Patchy rain possible
17°
16
Patchy rain possible
16°
17
Partly cloudy
16°
18
Sunny
18°
19
Sunny
18°
20
Overcast
18°
21
Sunny
17°
22
Sunny
17°
23
Overcast
17°
24
Sunny
17°
25
Sunny
17°
26
Sunny
18°
27
Overcast
17°
28
Sunny
18°
29
Overcast
18°
30
Overcast
17°

Temperatures trend during September in Penzance

See the weather trend as well as the moving average line

September weather in Penzance day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 17° /15° 3.3 mm 3
2 Sept. Patchy rain possible
Patchy rain possible
 18° /15° 5.4 mm 3
3 Sept. Patchy rain possible
Patchy rain possible
 18° /15° 6 mm 3
4 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 3.7 mm 3
5 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /14° 4.9 mm 4
6 Sept. Heavy rain at times
Heavy rain at times
 18° /15° 0.7 mm 4
7 Sept. Moderate rain at times
Moderate rain at times
 17° /14° 4.7 mm 3
8 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /14° 14.8 mm 3
9 Sept. Overcast
Overcast
 16° /14° 5.7 mm 4
10 Sept. Moderate rain at times
Moderate rain at times
 17° /14° 3.2 mm 3
11 Sept. Patchy rain possible
Patchy rain possible
 16° /14° 2.3 mm 3
12 Sept. Moderate rain at times
Moderate rain at times
 16° /14° 4 mm 3
13 Sept. Partly cloudy
Partly cloudy
 16° /14° 1.7 mm 3
14 Sept. Sunny
Sunny
 17° /14° 2.3 mm 4
15 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 2.3 mm 3
16 Sept. Patchy rain possible
Patchy rain possible
 16° /14° 2 mm 3
17 Sept. Partly cloudy
Partly cloudy
 16° /14° 1.3 mm 3
18 Sept. Sunny
Sunny
 18° /14° 0.4 mm 3
19 Sept. Sunny
Sunny
 18° /15° 0.1 mm 5
20 Sept. Overcast
Overcast
 18° /17° 0.2 mm 4.1
21 Sept. Sunny
Sunny
 17° /16° 0 mm 4.3
22 Sept. Sunny
Sunny
 17° /16° 0 mm 4.1
23 Sept. Overcast
Overcast
 17° /15° 0 mm 3.6
24 Sept. Sunny
Sunny
 17° /15° 0 mm 5
25 Sept. Sunny
Sunny
 17° /16° 0 mm 5
26 Sept. Sunny
Sunny
 18° /16° 0 mm 5
27 Sept. Overcast
Overcast
 17° /16° 0.8 mm 4
28 Sept. Sunny
Sunny
 18° /17° 0.1 mm 5
29 Sept. Overcast
Overcast
 18° /17° 0 mm 5
30 Sept. Overcast
Overcast
 17° /17° 0 mm 4
Next
Important Notice
Our weather forecast for Penzance in September 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 Penzance forecast closer to your planned date for the most up-to-date weather information.
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Penzance in September - FAQ

What are the expected maximum and minimum temperatures in Penzance during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Penzance during September?
Significant rainfall exceeding 135.9 mm is expected in Penzance during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Penzance during September?
The average wind speed in Penzance during September is 32 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Penzance

Explore the daily rainfall trends and prepare for Penzances September weather 💧
Typically, Penzance has 22 rainy days in September with a total of 135.9 mm of rainfall.

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Location coordinates Where is Penzance?

Get accurate weather forecasts for Penzance, located at latitude 50.119 and longitude -5.537. Stay updated with localized weather information tailored for Penzance.

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