Monthly climate averages for Gloucester, United States. Based on 10-year ERA5 reanalysis data.
Cfa Humid Subtropical
Climate OverviewGloucester, United States in August has warm conditions, with highs averaging 24°C (75°F). Sea temperature stays cool at 18.5°C (65°F).
This month falls at the end of Summer.
Temperatures remain fairly steady throughout August, with daily highs around 24°C (75°F).
August sees fairly even rainfall, totalling about 66 mm across the month.
Expect around 11.9h of sunshine at the start of August, decreasing to 10.8h by the end.
The warmest days tend to fall around the 12th, averaging 25°C (77°F).
Temperatures begin dropping heading into September.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 24°C (75°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
1 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 3°C / -3°C | -3°C / -10°C | 11days (118 mm) Wet | 5.9h Fair | 68% Muggy | 2.2 Moderate | Poor | View Details |
| February | 4°C / -2°C | -1°C / -9°C | 10days (107 mm) Wet | 6.7h Fair | 70% Muggy | 3.1 Moderate | Poor | View Details |
| March | 7°C / 1°C | 2°C / -6°C | 13days (124 mm) Wet | 7.9h Good | 68% Muggy | 4.1 Moderate | Poor | View Details |
| April | 11°C / 5°C | 7°C / 0°C | 12days (134 mm) Wet | 8.6h Good | 72% Muggy | 5.2 High | Poor | View Details |
| May | 16°C / 10°C | 14°C / 7°C | 11days (95 mm) Wet | 10h Excellent | 76% Humid | 6.2 High | Good | View Details |
| June best | 21°C / 16°C | 21°C / 14°C | 9days (74 mm) Wet | 11.2h Excellent | 78% Humid | 6.7 High | Excellent | View Details |
| July best | 24°C / 20°C | 26°C / 20°C | 9days (84 mm) Wet | 11.3h Excellent | 79% Humid | 7.1 Very High | Excellent | View Details |
| August best | 24°C / 19°C | 26°C / 20°C | 8days (65 mm) Wet | 11h Excellent | 78% Humid | 6.6 High | Excellent | View Details |
| September best | 21°C / 16°C | 21°C / 15°C | 10days (89 mm) Wet | 8.8h Good | 78% Humid | 5.2 High | Excellent | View Details |
| October best | 16°C / 11°C | 14°C / 8°C | 10days (140 mm) Wet | 7.2h Good | 75% Muggy | 3.8 Moderate | Good | View Details |
| November | 10°C / 5°C | 6°C / -1°C | 9days (94 mm) Wet | 6.5h Fair | 69% Muggy | 2.6 Moderate | Poor | View Details |
| December | 5°C / 0°C | 0°C / -7°C | 11days (144 mm) Wet | 5.5h Fair | 70% Muggy | 1.9 Low | Poor | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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