Harstad in Summer
In summer (June, July and August), Harstad sees average daytime highs around 14°C and overnight lows near 9°C, with 292 mm of precipitation over about 46 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 11°C in early June to 14°C by late August. The sky is clear or mostly clear about 12% of the time across summer, and the air most often feels dry.
Summer is Harstad's best season of the year to visit on our travel score. For the whole year in context, see Harstad's year-round climate.
- Avg daytime high
- 14°C
- warmest season of the year
- Avg overnight low
- 9°C
- Precipitation
- 292 mm
- 46 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Harstad in Summer
Over the season highs climb from about 11°C in early June to 14°C by late August.
A typical summer day in Harstad reaches about 14°C and drops to 9°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Harstad
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.
Harstad 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 | -3° / -8° | 108 | 15 | 15 | 1.4 | 0.0 |
| Feb | -3° / -8° | 94 | 14.2 | 14.7 | 6.7 | 0.0 |
| Mar | 0° / -6° | 101 | 15.8 | 16 | 11 | 0.0 |
| Apr | 4° / -2° | 78 | 14.6 | 11.9 | 15.3 | 0.1 |
| May | 9° / 3° | 88 | 16 | 4.9 | 20.4 | 1.5 |
| Jun | 13° / 7° | 91 | 15.4 | 0.2 | 24 | 2.9 |
| Jul | 16° / 10° | 99 | 14.8 | 0 | 22.9 | 4.1 |
| Aug | 15° / 9° | 102 | 16.1 | 0 | 17.3 | 3.8 |
| Sep | 11° / 6° | 121 | 17.1 | 1.1 | 12.9 | 2.2 |
| Oct | 5° / 1° | 116 | 16.9 | 6.9 | 8.6 | 0.4 |
| Nov | 2° / -3° | 95 | 15.2 | 10.9 | 3.4 | 0.0 |
| Dec | -1° / -6° | 111 | 16 | 15.2 | 0 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 12% of the time across summer.
Chance of precipitation in Summer
Harstad gets around 292 mm of rain and snow over 46 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 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 24 hours in early June to 15 hours 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 4.2 kWh/m².
Is summer a good time to visit Harstad?
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 weaker month for outdoor sightseeing in Harstad.
What to pack for Harstad in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Harstad sees daytime highs around 14°C and nights near 9°C. Pack rain gear. Worth having: a warm layer and sun protection. About 46 days see rain.
Sea temperature near Harstad in Summer
The nearest coast averages about 11°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 12°C and coldest in March near 3°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 5 | 4 | 3 | 4 | 6 | 9 | 11 | 12 | 11 | 9 | 7 | 6 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 5 | Bracing |
| Feb | 4 | Bracing |
| Mar | 3 | Bracing |
| Apr | 4 | Bracing |
| May | 6 | Bracing |
| Jun | 9 | Bracing |
| Jul | 11 | Bracing |
| Aug | 12 | Bracing |
| Sep | 11 | Bracing |
| Oct | 9 | Bracing |
| Nov | 7 | Bracing |
| Dec | 6 | Bracing |
UV index in Harstad in Summer
Clear-sky midday UV across summer averages around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Harstad peaks around July 14 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 2 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 0 | 1 | 2 | 3 | 3 | 4 | 3 | 1 | 0 | 0 | 0 |
| Level | Low | Low | Low | Low | Moderate | Moderate | Moderate | Moderate | Low | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 0 | Low |
| Mar | 1 | Low |
| Apr | 2 | Low |
| May | 3 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 3 | Moderate |
| Sep | 1 | Low |
| Oct | 0 | Low |
| Nov | 0 | Low |
| Dec | 0 | Low |
Where is Harstad?
Harstad sits at 68.8°N, 16.5°E, 1 m above sea level, in Norway. The nearest listed city is Lofoten, 102 km away.
Topography around Harstad
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Harstad.
Within 3 km, the terrain around Harstad has significant variations in elevation — a maximum elevation change of 338 m around an average of 59 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 983 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,766 m.
The land around Harstad is covered by trees (47%) and water (34%) within 3 km, water (52%) and trees (25%) within 16 km, and water (45%), trees (21%) and grassland (21%) within 80 km.
Norway travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 91% of US
- price level, 2025
- GDP per capita
- $94,594
- 2025
- Happiness
- 7.2 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 2.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 613
- 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 Harstad (68.7983°, 16.5417°, elevation 1 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.