Hafnarfjörður weather in March

In March, Hafnarfjörður sees average daytime highs of 3°C and overnight lows near -2°C, with 118 mm of precipitation across 17.2 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 2°C in the first days to 4°C by the end. The sky is clear or mostly clear about 12% of the time in March, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of March to 12 h 54 min by month's end. Set against the rest of the year, March is Hafnarfjörður's 5th-clearest and 4th-windiest month. For the whole year in context, see Hafnarfjörður's year-round climate.

Daytime high
9th warmest
Overnight low
-2°
3rd coldest
Precipitation
118 mm
17.2 wet days
Daylight
11 h 12 min
8:01 AM – 7:13 PM
Cloud cover
76%
5th clearest
Wind
17 km/h
4th windiest
Solar energy
1.94 kWh/m²
Travel score
0.0
out of 10

Hafnarfjörður is town of Iceland.

Air quality
Excellent
PM2.5 4.5 µg/m³ · 2019
Density
181/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 2°C in the first days to 4°C by the end.

A typical March day in Hafnarfjörður reaches about 3°C in the afternoon and slips back to -2°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 8°C. Set against its neighbours, March runs about 1°C warmer than February and about 3°C cooler than April.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
12-3
22-3
32-3
42-2
53-2
63-2
73-2
83-2
93-2
103-2
113-2
123-2
133-2
143-2
153-2
163-2
173-1
184-1
194-1
204-1
214-1
224-1
234-1
244-1
254-1
264-1
274-1
284-1
294-1
3050
3150

How March really feels in Hafnarfjörður

Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in March is cold — wind chill drags the overnight "feels like" below the raw low.

Hafnarfjörður weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°12817.811.650.0
Feb / -2°12616.912.17.90.0
Mar / -2°11817.211.411.20.0
Apr / 10116.55.614.60.5
May10° / 9015.80.717.91.7
Jun12° / 7914.20.120.12.8
Jul14° / 8514.5019.23.5
Aug13° / 10415.8016.13.2
Sep11° / 13417.60.212.72.0
Oct / 11614.92.39.30.7
Nov / 11716.36.660.0
Dec / -2°12917.5113.90.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 11% of March, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22872
32773
42674
52773
62773
72575
82575
92575
102476
112377
122377
132377
142179
152179
162080
172080
182080
192179
202179
212179
222179
232080
242278
252278
262278
272278
282278
292278
302278
312278

Chance of precipitation in March

Any precipitationSnow

Hafnarfjörður gets around 118 mm of rain and snow over 17.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 56% and peaks near 59% on the wettest days, and about 11 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
15439
25439
35440
45440
55440
65440
75440
85540
95540
105640
115640
125740
135740
145840
155839
165838
175938
185937
195936
205836
215835
225734
235734
245633
255633
265632
275531
285531
295530
305430
315429

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in March

Winds average 17 km/h in March.

Across March, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 9 h 30 min at the start of March to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 204 minutes over March. Sunrise moves from 8:55 AM to 7:07 AM, and sunset from 6:27 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.58:556:27
29.68:516:30
39.88:486:33
49.98:446:36
510.08:416:40
610.18:376:43
710.28:346:46
810.38:306:49
910.48:276:52
1010.58:236:55
1110.68:196:58
1210.88:167:01
1310.98:127:04
1411.08:097:07
1511.18:057:10
1611.28:017:13
1711.37:587:16
1811.47:547:19
1911.57:517:22
2011.67:477:25
2111.87:437:28
2211.97:407:31
2312.07:367:34
2412.17:327:37
2512.27:297:40
2612.37:257:43
2712.47:227:46
2812.57:187:49
2912.67:147:52
3012.77:117:55
3112.97:077:58

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 1.94 kWh/m².

For context, solar energy here swings from a low near 0.05 kWh/m² to a high of 5.21 kWh/m² in June across the year — March's 1.94 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.4Dim
41.4Dim
51.4Dim
61.5Dim
71.5Dim
81.6Dim
91.6Dim
101.7Dim
111.7Dim
121.7Dim
131.8Dim
141.8Dim
151.9Dim
161.9Dim
172.0Dim
182.0Moderate
192.0Moderate
202.1Moderate
212.1Moderate
222.2Moderate
232.3Moderate
242.3Moderate
252.4Moderate
262.4Moderate
272.5Moderate
282.5Moderate
292.6Moderate
302.6Moderate
312.7Moderate
Planning a trip in March

Is March a good time to visit Hafnarfjörður?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
8th-best month of the year
Beach & pool
never really warm enough

March is a weaker month for outdoor sightseeing in Hafnarfjörður.

What to pack for Hafnarfjörður in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Hafnarfjörður sees daytime highs around 3°C and nights near -2°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 17 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Hafnarfjörður in March

The nearest coast averages about 5°C in March — 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.

4°6°8°10°12°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°C)Comfort
Jan5Bracing
Feb5Bracing
Mar5Bracing
Apr6Bracing
May7Bracing
Jun10Bracing
Jul11Bracing
Aug11Bracing
Sep10Bracing
Oct8Bracing
Nov7Bracing
Dec6Bracing

UV index in Hafnarfjörður in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 1. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 21UV 4Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun5Moderate
Jul4Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low
Location & terrain

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.

KeflavikReykjanesbærVikAkureyri

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.

3 km
149 m
16 km
614 m
80 km
1,332 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmoss and lichen
March weather nearby: Kópavogur 5.0 km · Reykjavik 8.0 km · Keflavik 31 km · Reykjanesbær 31 km · Vik 161 km · Akureyri 256 km · Tórshavn 796 km · Isle of Lewis 1,053 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
Evangelical Lutheran Church of Iceland 59%other or unspecified 19%none 8%Independent Congregation of Reykjavik 3%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).