
Gwennap Head
- Annual mean
- 12.3 °C
- Warmest month
- August
- Wettest month
- November
Long term climate patterns including average temperatures, precipitation, and wind speeds
Explore the climate profile of Mounts Bay Marine Conservation Zone through long term averages from 1991 to 2020. Measurements include mean, minimum, and maximum temperatures alongside daily precipitation, relative humidity, wind speed, and daylight hours at a single representative coordinate. Data provides a comprehensive look at atmospheric patterns across the full calendar year for this protected marine area in Cornwall.

Analysis of average monthly thermal ranges and daily precipitation rates across twelve months
Analyze long term temperature bounds, daily precipitation rates, wind speeds, and calculated daylight
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 9.3 °C5.2° to 12.3° | 3.5 mm/day | 82.7% | 9.4 m/s | 8.4 hours |
| February | 8.8 °C4.7° to 11.5° | 3 mm/day | 82.7% | 8.9 m/s | 9.8 hours |
| March | 9 °C5.5° to 11.5° | 2.4 mm/day | 84.6% | 8 m/s | 11.6 hours |
| April | 10 °C6.6° to 12.7° | 2.3 mm/day | 84.5% | 7.1 m/s | 13.5 hours |
| May | 11.9 °C8.9° to 15.2° | 2 mm/day | 85.9% | 6.6 m/s | 15.2 hours |
| June | 14.3 °C11.5° to 17.3° | 2 mm/day | 86.8% | 6.2 m/s | 16.1 hours |
| July | 16.3 °C13.8° to 19° | 2.2 mm/day | 87% | 6.1 m/s | 15.7 hours |
| August | 16.7 °C14.4° to 18.9° | 2.4 mm/day | 85.8% | 6.3 m/s | 14.2 hours |
| September | 15.6 °C13° to 18° | 2.3 mm/day | 85.2% | 6.8 m/s | 12.3 hours |
| October | 13.7 °C10.7° to 16.1° | 3.3 mm/day | 84.1% | 8 m/s | 10.4 hours |
| November | 11.7 °C8.1° to 14.5° | 3.9 mm/day | 82.8% | 8.8 m/s | 8.8 hours |
| December | 10.1 °C6.2° to 13.1° | 3.8 mm/day | 82.4% | 9.4 m/s | 7.9 hours |
Comparing long term monthly averages for temperature, precipitation, wind, humidity, and daylight duration
Interactive climate map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Analyze monthly temperature, precipitation, and wind patterns across different coastal landscapes.







Trace the underwater boundaries and physical features of this protected marine area off the coast of Cornwall. Gain insight into the varied seabed composition and seagrass habitats that define this important region within the MoriAtlas database of protected lands. Use these mapped geographic insights to understand the ecological character of the South Cornwall coast.