Glasgow Weather in May
May in Glasgow brings moderate temperatures, with daytime highs of 15°C (59°F) and nights around 7°C (45°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
Rainfall in Glasgow in May
Dry conditions dominate this month. A great time for outdoor fun and exploration. The climate data from previous years indicates about 17 days of rain, averaging 88 mm (3.5 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Glasgow in May
Daytime highs in Glasgow in May reach 15°C (59°F), with nights around 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Glasgow in May
The area enjoys a balanced 188 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you prefer dry days with pleasant temperatures, June typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Scotland, check out our Glasgow's climate page.
Glasgow Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
15°C (59°F)
Chance of Rain
56%
Precipitation
88 mm (3.5 in)
Rainy days
17 days
Humidity
68%
Sunshine
188 hours
Percentage Sunshine
37%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Glasgow typically stay consistent throughout May, with daily highs averaging around 15°C (59°F). Nights are cold, with lows typically ranging from 5°C (41°F) to 8°C (46°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Glasgow in May
Browse day-by-day weather records for Glasgow spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Glasgow historical weather extremes in May
Based on weather observations in Glasgow between 1976 and 2026, these are the recorded extremes during May.
- Glasgow recorded its highest May temperature of 27°C (81°F) on May 26, 2017.
- On May 14, 1993, Glasgow saw its coldest May day with temperatures maxing out at 5°C (41°F).
- The coldest night in May in Glasgow was on May 5, 2012, with a minimum of -4°C (25°F).
Best Places in Scotland in May
Find out more about the weather in Scotland and which places have the best travel conditions in this month. See all of Scotland in May →
perfect weather
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What to Wear in Glasgow in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Glasgow in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Scotland, check out our Glasgow's climate page.
Temperature Rainfall Sunshine Humidity
See the full Glasgow climate overview or explore weather in Scotland.
