Glasgow in September
In September, Glasgow averages 16°C (61°F) during the day and 10°C (50°F) at night, with frequent rain — about 14 days of the month see precipitation (125 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Plan for unsettled weather and bring rain gear.
September is one of the wetter and less comfortable months in Glasgow. If your dates are flexible, consider a different time of year.
How September compares to the rest of the year in Glasgow
September is in the middle of the year for warmth in Glasgow (4th of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature runs 3°C above the annual average (13°C). September runs 2°C cooler than August (18°C) and cools 3°C in October (13°C).
September sunrise & sunset in Glasgow
Times shown for Glasgow local time (Europe/London), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Glasgow — September
Golden-hour and blue-hour windows for the 15th of September, in Glasgow's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Glasgow in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Glasgow's popularity.
Crowds & pricing — September in Glasgow
Glasgow is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — September in Glasgow
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Glasgow in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 7°C / 45°F | 1°C / 34°F | 170 mm | 18 | 1 |
| February | 8°C / 46°F | 1°C / 34°F | 125 mm | 15 | 1 |
| March | 10°C / 50°F | 3°C / 37°F | 105 mm | 15 | 0 |
| April | 12°C / 54°F | 5°C / 41°F | 80 mm | 13 | 0 |
| May | 15°C / 59°F | 7°C / 45°F | 75 mm | 12 | 0 |
| June | 18°C / 64°F | 10°C / 50°F | 75 mm | 12 | 0 |
| July | 19°C / 66°F | 12°C / 54°F | 90 mm | 13 | 0 |
| August | 18°C / 64°F | 12°C / 54°F | 110 mm | 14 | 0 |
| September | 16°C / 61°F | 10°C / 50°F | 125 mm | 14 | 0 |
| October | 13°C / 55°F | 7°C / 45°F | 150 mm | 16 | 0 |
| November | 9°C / 48°F | 3°C / 37°F | 150 mm | 17 | 1 |
| December | 7°C / 45°F | 1°C / 34°F | 155 mm | 17 | 1 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Glasgow in September →
Frequently asked questions
How hot is Glasgow in September?
In September, Glasgow averages a high of 16°C (61°F) and a low of 10°C (50°F) — generally cool.
Does it rain a lot in Glasgow in September?
September can be fairly wet in Glasgow, with about 14 rainy days on average.
Is September a good time to visit Glasgow?
September is cool but on the rainy side. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Glasgow in September?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full September packing list for Glasgow for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.