Gloucester in Summer
In summer (June, July and August), Gloucester sees average daytime highs around 25°C and overnight lows near 14°C, with 276 mm of rain over about 34 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 25°C. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels dry.
Summer is Gloucester's best season of the year to visit on our travel score. For the whole year in context, see Gloucester's year-round climate.
- Avg daytime high
- 25°C
- warmest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 276 mm
- 34 wet days
- Avg wind
- 10 km/h
- Travel score
- 6.5
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Gloucester in Summer
Across summer, daytime highs hold fairly steady around 25°C.
A typical summer day in Gloucester reaches about 25°C and drops to 14°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Gloucester
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Gloucester weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -5° / -14° | 70 | 10.4 | 9.2 | 8.9 | 0.0 |
| Feb | -3° / -13° | 56 | 8.8 | 8 | 10.1 | 0.0 |
| Mar | 3° / -7° | 72 | 10.2 | 6.5 | 11.6 | 0.1 |
| Apr | 12° / 1° | 92 | 11.3 | 2.8 | 13.2 | 2.9 |
| May | 19° / 8° | 85 | 11.3 | 0.2 | 14.6 | 5.8 |
| Jun | 24° / 13° | 95 | 11.3 | 0 | 15.4 | 6.5 |
| Jul | 26° / 16° | 94 | 11.8 | 0 | 15.1 | 6.3 |
| Aug | 25° / 15° | 86 | 10.8 | 0 | 13.9 | 6.7 |
| Sep | 21° / 10° | 90 | 9.9 | 0 | 12.3 | 6.4 |
| Oct | 13° / 4° | 97 | 11.7 | 0.6 | 10.7 | 3.5 |
| Nov | 6° / -2° | 80 | 11.1 | 3.5 | 9.3 | 0.5 |
| Dec | -1° / -8° | 76 | 11.4 | 8.7 | 8.6 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Gloucester gets around 276 mm of rain over 34 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 12 min in early June to 13 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.7 kWh/m².
Is summer a good time to visit Gloucester?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Gloucester for sightseeing.
What to pack for Gloucester in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Gloucester sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 34 days see rain.
UV index in Gloucester in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gloucester peaks around July 13 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 4 | 6 | 7 | 8 | 5 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | Very high | Moderate | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 8 | Very high |
| Aug | 5 | Moderate |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Gloucester in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Gloucester is worst in June — around 15 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 11 | 13 | 11 | 13 | 15 | 14 | 13 | 10 | 7 | 7 | 7 |
| Level | Good | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 11 | Good |
| Mar | 13 | Moderate |
| Apr | 11 | Good |
| May | 13 | Moderate |
| Jun | 15 | Moderate |
| Jul | 14 | Moderate |
| Aug | 13 | Moderate |
| Sep | 10 | Good |
| Oct | 7 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Gloucester?
Gloucester sits at 45.4°N, 75.6°W, 93 m above sea level, in Canada. The nearest listed city is Alta Vista, 4.0 km away.
Topography around Gloucester
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gloucester.
Within 3 km, the terrain around Gloucester has only modest variations in elevation — a maximum elevation change of 45 m around an average of 96 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 167 m; within 80 km, significant variations in elevation — a maximum elevation change of 524 m.
The land around Gloucester is covered by trees (54%) and artificial surfaces (30%) within 3 km, trees (39%) and artificial surfaces (22%) within 16 km, and trees (61%) and cropland (22%) within 80 km.
Canada travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 83% of US
- price level, 2025
- GDP per capita
- $55,698
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 2
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Gloucester (45.35°, -75.6333°, elevation 93 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.