Colchester in Summer
In summer (June, July and August), Colchester sees average daytime highs around 77°F and overnight lows near 59°F, with 10.2 in of rain over about 35 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs climb from about 71°F in early June to 75°F by late August. The sky is clear or mostly clear about 28% of the time across summer, and the air most often feels dry.
Summer is Colchester's best season of the year to visit on our travel score. For the whole year in context, see Colchester's year-round climate.
- Avg daytime high
- 77°F
- warmest season of the year
- Avg overnight low
- 59°F
- Rainfall
- 10.2 in
- 35 wet days
- Avg wind
- 5 mph
- Travel score
- 6.5
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Colchester in Summer
Over the season highs climb from about 71°F in early June to 75°F by late August.
A typical summer day in Colchester reaches about 77°F and drops to 59°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Colchester
Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Colchester 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 (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 27° / 13° | 2.5 | 10.1 | 9.3 | 9 | 0.0 |
| Feb | 29° / 13° | 2.2 | 8.9 | 8.1 | 10.1 | 0.0 |
| Mar | 38° / 23° | 2.9 | 11 | 7 | 11.6 | 0.1 |
| Apr | 53° / 36° | 3.4 | 11.6 | 2.7 | 13.2 | 2.7 |
| May | 65° / 46° | 3.4 | 11.9 | 0.1 | 14.6 | 5.6 |
| Jun | 74° / 55° | 3.8 | 12 | 0 | 15.3 | 6.4 |
| Jul | 79° / 61° | 3.3 | 11.8 | 0 | 15 | 6.4 |
| Aug | 77° / 60° | 3.1 | 11.4 | 0 | 13.9 | 6.7 |
| Sep | 69° / 53° | 3.3 | 9.8 | 0 | 12.3 | 6.4 |
| Oct | 56° / 42° | 4.2 | 12.4 | 0.5 | 10.7 | 3.6 |
| Nov | 44° / 32° | 3.2 | 12.5 | 4 | 9.4 | 0.7 |
| Dec | 33° / 22° | 3.0 | 12.1 | 9.3 | 8.7 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 28% of the time across summer.
Chance of precipitation in Summer
Colchester gets around 10.2 in of rain over 35 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 5 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 06 min in early June to 13 h 06 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 5.6 kWh/m².
Hazard calendar for Colchester
In summer, Colchester overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Colchester sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Colchester?
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 Colchester for sightseeing.
What to pack for Colchester in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Colchester sees daytime highs around 77°F and nights near 59°F. Worth packing: light clothes, rain gear and sun protection. About 35 days see rain.
UV index in Colchester in Summer
Clear-sky midday UV across summer averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Colchester 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 December 22 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 | 4 | 5 | 7 | 6 | 8 | 3 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | Moderate | High | High | Very high | Moderate | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 3 | Moderate |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Colchester?
Colchester sits at 44.5°N, 73.1°W, 272 ft above sea level, in United States. The nearest listed city is South Burlington, 5.6 mi away.
Topography around Colchester
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Colchester.
Within 2 miles, the terrain around Colchester has only modest variations in elevation — a maximum elevation change of 591 ft around an average of 305 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,496 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,266 ft.
The land around Colchester is covered by trees (73%) within 2 miles, trees (56%) and water (23%) within 10 miles, and trees (77%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- 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 Colchester (44.5439°, -73.1479°, elevation 272 ft), 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.