England · United Kingdom
Plymouth in September
In September, Plymouth averages a daytime high of 18 °C and a night-time low of 11 °C, with about 93 mm of rain over the month. It falls outside Plymouth's most comfortable months, June.
- Average high
- 18 °C
- Average low
- 11 °C
- Rain in the month
- 93 mm
- Daylight on 15 Sep
- 12 h 30 min
- Comfortable month
- No
- Places to stay
- 81
When to go
How September compares with the rest of the year in Plymouth
September is the 4th warmest month in Plymouth by average daytime high; across the year the highs run from 9 °C to 20 °C and the lows from 4 °C to 13 °C. By day, September is 2 °C cooler than August, and October is 3 °C cooler than September.
September brings 93 mm of rain, less than the monthly average of 113 mm (1358 mm a year); it is the 8th wettest month.
On 15 September the sun is up for about 12 h 30 min, against 8 h at the shortest and 16 h 20 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 9 °C | 4 °C | 158 mm | |
| February | 9 °C | 4 °C | 120 mm | |
| March | 11 °C | 5 °C | 96 mm | |
| April | 13 °C | 6 °C | 83 mm | |
| May | 16 °C | 9 °C | 75 mm | |
| June | 19 °C | 11 °C | 76 mm | Yes |
| July | 20 °C | 13 °C | 88 mm | |
| August | 20 °C | 13 °C | 100 mm | |
| September | 18 °C | 11 °C | 93 mm | |
| October | 15 °C | 9 °C | 143 mm | |
| November | 12 °C | 7 °C | 158 mm | |
| December | 9 °C | 5 °C | 168 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is September a good time to visit Plymouth?
Not by the measure used here: about 93 mm of rain is 80 mm or more. The comfortable months in Plymouth are June; the nearest is June.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
When to go
Destinations near Plymouth that are comfortable in September
Within 300 km, nearest first, by the same measure.
Where to stay
Where to stay in Plymouth
This guide lists 81 places to stay in Plymouth: 5 chain properties with their details and own websites, and 76 hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 17; 1–3 km, 8; 3–10 km, 17; 10 km or more, 39.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; places to stay from each operator's own public pages and Wikidata. How this guide is made.