Climate Chart of Douglas, Isle of Man
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Douglas, Isle of Man, the climate data cover 2013–2023.
Climate overview
Temperature
Monthly mean temperatures are highest in July / August at 15.1 °C, while the coolest monthly mean is in February at 6.2 °C. These are averages for each month, not daytime high temperatures, so they describe the broad monthly pattern rather than the range a visitor might experience on a particular day. The unweighted mean of the monthly temperature means is 10.4 °C; it summarizes the calendar-month means and is not a day-weighted annual average.
Rain
Mean daily rainfall is lowest in April at 1.72 mm/day and highest in November at 4.54 mm/day. These are average daily amounts, not monthly totals, and a lower mean does not guarantee that a given day will be dry. Across the calendar months, the unweighted mean of those monthly rainfall means is 3.25 mm/day. It provides a summary of the monthly averages, not a measure of rain frequency or a day-weighted annual figure.
Sunshine
Mean daily sunshine reaches its highest monthly average in June at 11.48 hours/day, and its lowest in December at 2.85 hours/day. Sunshine duration indicates average hours of sunshine, not day length. The unweighted mean of monthly sunshine-duration means is 7.57 hours/day per day, a summary across calendar months rather than a day-weighted annual average.
Best Travel Time Guide for Douglas, Isle of Man: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly averages, February is the relevant choice in the temperature data, with a monthly mean of 6.2 °C. This average cannot predict the temperature on a particular day, so check conditions close to travel and bring layers suited to changing weather. If lower average rainfall is a priority, April is the option indicated by the lowest mean daily rainfall, 1.72 mm/day. It does not promise dry days or show how often rain falls; for rain preparation, note that the highest monthly mean daily rainfall is in November at 4.54 mm/day.
For outdoor plans shaped around average sunshine, June has the highest mean daily duration at 11.48 hours/day, while December has the lowest at 2.85 hours/day. These figures can help compare typical sunshine duration, but they are not day length and cannot guarantee conditions on a sightseeing day; carry flexible plans and clothing rather than relying on the monthly average alone.
Climate Data Overview for Douglas, Isle of Man
Explore the comprehensive climate data for Douglas, Isle of Man. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 6.4 | 3.48 | 0.41 | 3.52 |
| Feb | 6.2 | 3.64 | 1.06 | 5.50 |
| Mar | 6.5 | 2.78 | 1.65 | 7.26 |
| Apr | 8.1 | 1.72 | 0.28 | 9.67 |
| May | 10.8 | 2.08 | 0.00 | 11.18 |
| Jun | 13.7 | 2.46 | 0.00 | 11.48 |
| Jul | 15.1 | 2.95 | 0.00 | 11.21 |
| Aug | 15.1 | 3.28 | 0.00 | 10.07 |
| Sep | 14.0 | 3.33 | 0.00 | 8.20 |
| Oct | 11.9 | 4.42 | 0.00 | 5.73 |
| Nov | 9.0 | 4.54 | 0.03 | 4.15 |
| Dec | 7.6 | 4.32 | 0.51 | 2.85 |
| Average | 10.4 | 3.25 | 0.33 | 7.57 |
