Climate Chart of Glasgow, Great Britain
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Glasgow, Great Britain, the climate data describe 2013–2023. Monthly mean temperatures range from January at 4.0 °C to July at 15.2 °C, giving a broad sense of the year’s temperature range without describing daytime highs. The annual pattern also includes changing daily rainfall and sunshine averages, while recorded snowfall is part of the picture too. These figures are useful for setting expectations, but monthly averages do not predict the conditions on any particular day.
Climate overview
Temperature
The coolest monthly mean is 4.0 °C in January, while the warmest is 15.2 °C in July. These are averages across each month, not daytime maximum temperatures, so they describe the broad temperature pattern rather than the warmth reached on an individual afternoon. Across the calendar-month means, the unweighted mean is 9.1 °C. It offers a compact summary of the temperature figures, but it is not a day-weighted annual average and does not show how temperatures vary from day to day.
Rain
Mean daily rainfall is lowest in April, at 1.79 mm/day, making that month a possible choice for visitors who prioritise lower average rainfall. The highest monthly mean is 4.30 mm/day in October; this is a useful prompt to prepare for wet weather, not a measure of how often rain falls or a guarantee about any particular day. The unweighted mean across monthly daily-rainfall averages is 3.32 mm/day. These amounts are daily means, not monthly totals, and they cannot establish the length or timing of dry spells.
Sunshine
Mean daily sunshine reaches its highest value of 9.46 hours/day in June, and its lowest of 2.11 hours/day in December. Those averages can help with planning outdoor time, but sunshine duration is not the same as day length and does not guarantee clear skies on a given date. The unweighted mean of the monthly sunshine averages is 6.27 hours/day per day. It summarises the calendar-month figures, while actual sunshine can differ from the average.
Snow
The highest monthly mean daily snowfall is 2.82 mm/day in February. The unweighted mean across the monthly snowfall averages is 0.71 mm/day per day; these figures describe average amounts, not the number of snowy days, snow depth, snow cover or skiing conditions.
Best Travel Time Guide for Glasgow, Great Britain: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly averages, January is the relevant reference point, with a mean temperature of 4.0 °C; pack for the conditions you may encounter rather than treating the average as a daily forecast. If lower average rainfall is your priority, April is the conditional option, with mean daily rainfall of 1.79 mm/day. It does not guarantee dry days, while October has the highest monthly mean at 4.30 mm/day, making rain-ready clothing a sensible consideration when planning for that month. For outdoor sightseeing planned around average sunshine, June has the highest mean daily duration at 9.46 hours/day, while December has the lowest at 2.11 hours/day. These are sunshine-duration averages, not day-length figures or assurances of clear weather.
The recorded highest monthly mean daily snowfall is 2.82 mm/day in February. This average alone cannot tell you whether snow will fall during a visit or indicate snow depth or cover, so use it as background rather than a prediction of travel conditions.
Climate Data Overview for Glasgow, Great Britain
Explore the comprehensive climate data for Glasgow, Great Britain. 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 | 4.0 | 3.57 | 2.20 | 2.76 |
| Feb | 4.4 | 3.80 | 2.82 | 4.46 |
| Mar | 5.3 | 2.86 | 1.45 | 5.86 |
| Apr | 7.4 | 1.79 | 0.48 | 8.42 |
| May | 10.7 | 2.55 | 0.02 | 9.22 |
| Jun | 13.8 | 2.95 | 0.00 | 9.46 |
| Jul | 15.2 | 3.50 | 0.00 | 9.42 |
| Aug | 14.4 | 3.64 | 0.00 | 8.54 |
| Sep | 12.9 | 3.11 | 0.00 | 6.79 |
| Oct | 10.0 | 4.30 | 0.00 | 4.74 |
| Nov | 6.3 | 3.50 | 0.25 | 3.43 |
| Dec | 5.0 | 4.24 | 1.25 | 2.11 |
| Average | 9.1 | 3.32 | 0.71 | 6.27 |
