Hafnarfjörður in Spring
In spring (March, April and May), Hafnarfjörður sees average daytime highs around 6°C and overnight lows near 1°C, with 309 mm of precipitation over about 50 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 2°C in early March to 11°C by late May. The sky is clear or mostly clear about 11% of the time across spring, and the air most often feels dry.
Spring is Hafnarfjörður's 3rd-best season to visit on our travel score. For the whole year in context, see Hafnarfjörður's year-round climate.
- Avg daytime high
- 6°C
- 3rd-warmest season
- Avg overnight low
- 1°C
- Precipitation
- 309 mm
- 50 wet days
- Avg wind
- 16 km/h
- Travel score
- 0.7
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Hafnarfjörður in Spring
Over the season highs climb from about 2°C in early March to 11°C by late May.
A typical spring day in Hafnarfjörður reaches about 6°C and drops to 1°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Hafnarfjörður
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 72 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Hafnarfjörður weather by month
How the three spring months (March, April and May) 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 | 2° / -2° | 128 | 17.8 | 11.6 | 5 | 0.0 |
| Feb | 3° / -2° | 126 | 16.9 | 12.1 | 7.9 | 0.0 |
| Mar | 3° / -2° | 118 | 17.2 | 11.4 | 11.2 | 0.0 |
| Apr | 6° / 1° | 101 | 16.5 | 5.6 | 14.6 | 0.5 |
| May | 10° / 4° | 90 | 15.8 | 0.7 | 17.9 | 1.7 |
| Jun | 12° / 7° | 79 | 14.2 | 0.1 | 20.1 | 2.8 |
| Jul | 14° / 9° | 85 | 14.5 | 0 | 19.2 | 3.5 |
| Aug | 13° / 9° | 104 | 15.8 | 0 | 16.1 | 3.2 |
| Sep | 11° / 6° | 134 | 17.6 | 0.2 | 12.7 | 2.0 |
| Oct | 7° / 3° | 116 | 14.9 | 2.3 | 9.3 | 0.7 |
| Nov | 4° / 0° | 117 | 16.3 | 6.6 | 6 | 0.0 |
| Dec | 3° / -2° | 129 | 17.5 | 11 | 3.9 | 0.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 11% of the time across spring.
Chance of precipitation in Spring
Hafnarfjörður gets around 309 mm of rain and snow over 50 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 16 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 9 h 30 min in early March to 19 h 18 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 3.4 kWh/m².
Is spring a good time to visit Hafnarfjörður?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Hafnarfjörður.
What to pack for Hafnarfjörður in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Hafnarfjörður sees daytime highs around 6°C and nights near 1°C. Pack a warm layer and rain gear. Worth having: a heavy coat and sun protection. About 50 days see rain.
Sea temperature near Hafnarfjörður in Spring
The nearest coast averages about 6°C across spring — 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 11°C and coldest in March near 5°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 | 5 | 5 | 6 | 7 | 10 | 11 | 11 | 10 | 8 | 7 | 6 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 5 | Bracing |
| Feb | 5 | Bracing |
| Mar | 5 | Bracing |
| Apr | 6 | Bracing |
| May | 7 | Bracing |
| Jun | 10 | Bracing |
| Jul | 11 | Bracing |
| Aug | 11 | Bracing |
| Sep | 10 | Bracing |
| Oct | 8 | Bracing |
| Nov | 7 | Bracing |
| Dec | 6 | Bracing |
UV index in Hafnarfjörður in Spring
Clear-sky midday UV across spring averages around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hafnarfjörður peaks around June 21 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 3 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 0 | 1 | 2 | 4 | 5 | 4 | 3 | 2 | 1 | 0 | 0 |
| Level | Low | Low | Low | Moderate | Moderate | Moderate | Moderate | Moderate | Low | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 0 | Low |
| Mar | 1 | Low |
| Apr | 2 | Moderate |
| May | 4 | Moderate |
| Jun | 5 | Moderate |
| Jul | 4 | Moderate |
| Aug | 3 | Moderate |
| Sep | 2 | Low |
| Oct | 1 | Low |
| Nov | 0 | Low |
| Dec | 0 | Low |
Where is Hafnarfjörður?
Hafnarfjörður sits at 64.1°N, 21.9°W, 39 m above sea level, in Iceland. The nearest listed city is Kópavogur, 5.0 km away.
Topography around Hafnarfjörður
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hafnarfjörður.
Within 3 km, the terrain around Hafnarfjörður has only modest variations in elevation — a maximum elevation change of 149 m around an average of 39 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 614 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,332 m.
The land around Hafnarfjörður is covered by grassland (53%) and artificial surfaces (24%) within 3 km, grassland (52%) and water (36%) within 16 km, and water (51%) and grassland (36%) within 80 km.
Iceland travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 118% of US
- price level, 2025
- GDP per capita
- $98,323
- 2025
- Happiness
- 7.5 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 2
- 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 Hafnarfjörður (64.0671°, -21.9377°, elevation 39 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.