AI-generatedSiglufjörður at a glance
- Best time
- Jun – Aug
- Warmest month
- Aug · 12°
- Warmest sea
- Aug · 8.9°
- Sunshine a year
- 1,060 h
- Rain a year
- 1,131 mm
- Climate
- Maritime
- Time zone
- UTC+0
- Elevation
- 0 m
Climate in Siglufjörður
Siglufjörður has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 12 °C, while March is the coolest at 4 °C. With around 1,060 hours of sunshine a year, Siglufjörður is rather dull; June is the sunniest month with 6.3 hours a day.
Holiday weather through the year
Best time to visit Siglufjörður
The best time to visit Siglufjörður is from June to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 8.9 °C. Rain is frequent from September to May; the wettest month is October with 133 mm.
Siglufjörður through the seasons
How the weather changes over the seasons, with averages for each.
Siglufjörður in spring
Mar – May
Poor
- 4–8 °C by day
- Sea 4 °C
- 4.2 h of sun a day
- 45 rainy days in all
Siglufjörður in summer
Jun – Aug
Poor
- 11–12 °C by day
- Sea 8 °C
- 5.2 h of sun a day
- 38 rainy days in all
Siglufjörður in autumn
Sep – Nov
Poor
- 5–11 °C by day
- Sea 7 °C
- 1.7 h of sun a day
- 53 rainy days in all
Siglufjörður in winter
Dec – Feb
Poor
- 4 °C by day
- Sea 4 °C
- 0.6 h of sun a day
- 53 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
Sep – May
Rainy season or more than 12 rainy days
Snow
Sep – May
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Siglufjörður for you.
Your best months: May – July
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: June – August
Where to go in OctoberSea temperature in October
Keep in mindFrequent rainSnow
A typical day in October
- Morning, 08:00: about 3°
- Midday, 13:00: about 6°
- Afternoon, 16:00: about 7°
- Evening, 20:00: about 5°
- Night, 23:00: about 4°
08:0917:54
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:36–09:25 · evening 16:37–18:26
- Blue hour
- Morning 07:16–07:36 · evening 18:26–18:46
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Siglufjörður compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 9° at the start of the month to 6° at the end. The sea cools from 7° to 6°. The days get 3.6 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 9° | 6° |
| Night-time low | 4° | 1° |
| Sea | 7° | 6° |
| Daylight | 11.4 h | 7.8 h |
What is the weather like in Siglufjörður in October?
In October, Siglufjörður is cold: daytime highs average 7 °C, and nights cool down to about 3 °C. The sea averages 6.3 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. It rains often – on about 18 days, adding up to 133 mm. Snow falls on about 10 days. All in all, October is not an ideal month for a holiday in Siglufjörður.
More details for October
- Daylight
- 9 h 45 min08:09 – 17:54
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 82 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 10 days1 cm or more of fresh snowAll months
- Time zone
- UTC+0offset from UTC
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Compare two months in Siglufjörður
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Siglufjörður: score 41 against 0. In July, days are 5 °C warmer than in October. The sea is 2 °C warmer in July. July has 6 fewer rainy days. The sun shines 3 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 0 | 41better |
| Daytime high | 7° | 12° |
| Night-time low | 3° | 8° |
| Sea | 6.3° | 8.5° |
| Sunshine | 1.6 h | 4.8 hbetter |
| Rainy days | 18 | 12better |
| Rainfall | 133 mm | 73 mmbetter |
Based on the climate averages 1996–2025.
Siglufjörður month by month
The typical weather for every month at a glance.
1January4° · Sea 4° · 0.3 h
In January, Siglufjörður is cold: daytime highs average 4 °C, and nights often drop below freezing (−1 °C). The sea averages 3.7 °C – swimming is only for the hardy. The sun is scarce, with only about 0.3 hours a day. Precipitation falls on about 18 days, totalling 103 mm; on about 13 of them it snows. All in all, January is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in January2February4° · Sea 3° · 1.4 h
In February, Siglufjörður is cold: daytime highs average 4 °C, and nights often drop below freezing (−2 °C). The sea averages 3.2 °C – swimming is only for the hardy. The sun is scarce, with only about 1.4 hours a day. Precipitation falls on about 17 days, totalling 99 mm; on about 13 of them it snows. All in all, February is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in February1March4° · Sea 3° · 2.7 h
In March, Siglufjörður is cold: daytime highs average 4 °C, and nights often drop below freezing (−2 °C). The sea averages 3.0 °C – swimming is only for the hardy. The sun is scarce, with only about 2.7 hours a day. Precipitation falls on about 18 days, totalling 94 mm; on about 14 of them it snows. All in all, March is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in March14April5° · Sea 3° · 4.4 h
In April, Siglufjörður is cold: daytime highs average 5 °C, and nights cool down to about 0 °C. The sea averages 3.4 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 71 mm in total. Snow falls on about 9 days. All in all, April is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in April18May8° · Sea 5° · 5.4 h
In May, Siglufjörður is cold: daytime highs average 8 °C, and nights cool down to about 3 °C. The sea averages 4.7 °C – swimming is only for the hardy. Expect around 5.4 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 67 mm in total. Snow falls on about 5 days. All in all, May is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in May39June11° · Sea 7° · 6.3 h
In June, Siglufjörður is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 7.0 °C – swimming is only for the hardy. Expect around 6.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 62 mm in total. All in all, June is not an ideal month for a holiday in Siglufjörður – and yet one of the best months here.
Siglufjörður in June41July12° · Sea 9° · 4.8 h
In July, Siglufjörður is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 8.5 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 73 mm in total. All in all, July is a so-so month for a holiday in Siglufjörður – and yet one of the best months here.
Siglufjörður in July37August12° · Sea 9° · 4.4 h
In August, Siglufjörður is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 8.9 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. It rains often – on about 14 days, adding up to 88 mm. All in all, August is not an ideal month for a holiday in Siglufjörður – and yet one of the best months here.
Siglufjörður in August16September11° · Sea 8° · 2.9 h
In September, Siglufjörður is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 7.7 °C – swimming is only for the hardy. The sun is scarce, with only about 2.9 hours a day. It rains often – on about 18 days, adding up to 122 mm. Snow falls on about 4 days. All in all, September is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in September0October7° · Sea 6° · 1.6 h
In October, Siglufjörður is cold: daytime highs average 7 °C, and nights cool down to about 3 °C. The sea averages 6.3 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. It rains often – on about 18 days, adding up to 133 mm. Snow falls on about 10 days. All in all, October is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in October1November5° · Sea 5° · 0.5 h
In November, Siglufjörður is cold: daytime highs average 5 °C, and nights cool down to about 0 °C. The sea averages 5.4 °C – swimming is only for the hardy. The sun is scarce, with only about 0.5 hours a day. It rains often – on about 17 days, adding up to 113 mm. Snow falls on about 12 days. All in all, November is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in November0December4° · Sea 5° · 0.0 h
In December, Siglufjörður is cold: daytime highs average 4 °C, and nights often drop below freezing (−1 °C). The sea averages 4.5 °C – swimming is only for the hardy. There is practically no direct sunshine: the sun barely rises above the horizon. It rains often – on about 18 days, adding up to 105 mm. Snow falls on about 14 days. All in all, December is not an ideal month for a holiday in Siglufjörður.
Siglufjörður in DecemberClimate in detail
Year & climate tableWarmest in August: 12°
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Siglufjörður
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 3°. The room should be heated.
The coolest nights are in February (−2°), the warmest in August (8°). Nights fall below 8 °C on average from September to June, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 1 | 4° | −1° | 3.7° | 0.3 h | 18 | 103 |
| FebruaryFeb | 2 | 4° | −2° | 3.2° | 1.4 h | 17 | 99 |
| MarchMar | 1 | 4° | −2° | 3.0° | 2.7 h | 18 | 94 |
| AprilApr | 14 | 5° | 0° | 3.4° | 4.4 h | 14 | 71 |
| MayMay | 18 | 8° | 3° | 4.7° | 5.4 h | 13 | 67 |
| JuneJun | 39 | 11° | 6° | 7.0° | 6.3 h | 12 | 62 |
| JulyJul | 41 | 12° | 8° | 8.5° | 4.8 h | 12 | 73 |
| AugustAug | 37 | 12° | 8° | 8.9° | 4.4 h | 14 | 88 |
| SeptemberSep | 16 | 11° | 6° | 7.7° | 2.9 h | 18 | 122 |
| OctoberOct | 0 | 7° | 3° | 6.3° | 1.6 h | 18 | 133 |
| NovemberNov | 1 | 5° | 0° | 5.4° | 0.5 h | 17 | 113 |
| DecemberDec | 0 | 4° | −1° | 4.5° | 0.0 h | 18 | 105 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
66.15° N, 18.91° W · 0 m · Atlantic/Reykjavik
Sea temperatureUp to 9° in August
Sea temperature in Siglufjörður
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 5.2 – 7.5 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Siglufjörður ranges from 3.0 °C in March to 8.9 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
From November to December the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 7.9 and 9.9 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 3.7° | 2.9° | 4.6° | cold |
| FebruaryFeb | 3.2° | 2.5° | 4.1° | cold |
| MarchMar | 3.0° | 2.0° | 4.0° | cold |
| AprilApr | 3.4° | 2.3° | 4.4° | cold |
| MayMay | 4.7° | 3.4° | 5.9° | cold |
| JuneJun | 7.0° | 5.4° | 8.2° | cold |
| JulyJul | 8.5° | 7.4° | 9.6° | cold |
| AugustAug | 8.9° | 7.9° | 9.9° | cold |
| SeptemberSep | 7.7° | 6.9° | 8.8° | cold |
| OctoberOct | 6.3° | 5.2° | 7.5° | cold |
| NovemberNov | 5.4° | 4.0° | 6.3° | cold |
| DecemberDec | 4.5° | 3.1° | 5.4° | cold |
Sunshine1,060 hours a year
Sunshine hours in Siglufjörður
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 1.6 of 9.7 hours of daylight in Siglufjörður, 16 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain1,131 mm a year, most in October
Rain in Siglufjörður: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Siglufjörður has about 18 rainy days with 133 mm of rain in total.
UV indexUp to 4 in June
UV index in Siglufjörður
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 0 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 4).
Minutes until sunburn in October
- Very fair skin
- over 2 h
- Fair skin
- over 2 h
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & cloudsWindiest in February: 24 km/h
Wind and clouds in Siglufjörður
How breezy and how cloudy Siglufjörður is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Siglufjörður typically peaks at 22 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Sep – Apr.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 82 % of the sky over Siglufjörður: mostly overcast, with about 1.6 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
SnowChance of snow up to 64% in January
Snow in Siglufjörður
When Siglufjörður is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Siglufjörður has about 10 days with at least 1 cm of fresh snow, 49 cm in total. The chance of seeing snow during a week's stay is 61 out of 100: likely.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Siglufjörður
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Siglufjörður in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Siglufjörður has its best school-holiday weather during the summer holidays (score 38) and its weakest during October half-term (score 0).
- 10
Easter holidays
Mar – Apr
Poor
- 5 °C by day
- Sea 3 °C
- 3.9 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain, Snow
- 22
May half-term
May – Jun
Poor
- 8 °C by day
- Sea 5 °C
- 5.6 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Snow
- 38
Summer holidays
Jul – Aug
PoorBest holidays
- 12 °C by day
- Sea 9 °C
- 4.5 h of sun a day
- 13 rainy days a month
- 0
October half-term
Oct
Poor
- 7 °C by day
- Sea 6 °C
- 1.6 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain, Snow
- 1
Christmas holidays
Dec – Jan
Poor
- 4 °C by day
- Sea 4 °C
- 0.2 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 2 h 50 min
- Distance
- 1,930 km
- Time zone
- UTC+0
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Iceland
- Currency
- Icelandic Króna (ISK)
- Language
- Icelandic
- Sockets
- Type C, F · 230 V
- Traffic
- Drives on the right
- Dialling code
- +354
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Siglufjörður compared
Put Siglufjörður side by side with another destination.
Siglufjörður vs Akureyri
In October the holiday weather in Siglufjörður and Akureyri is about equally good (score 0 vs 0). During the day it is about as warm in Akureyri as in Siglufjörður. The sea in Akureyri is 1 °C warmer.
| in October | Siglufjörður | Akureyri |
|---|---|---|
| Holiday weather score | 0 | 0 |
| Daytime high | 7° | 7° |
| Sea | 6° | 7° |
| Sunshine | 2 h | 2 h |
| Rainy days | 18 | 19 |
| Best time | Jun – Aug | Jun – Jul |
Through the year
Best places in the country
Iceland in October: the best places
In October, Siglufjörður ranks 12 of 15 destinations in this country.
- Stykkishólmur7°7°7
- 2Reykjavík8°9°6
- 3Hafnarfjörður8°9°6
- 4Keflavík8°9°6
- 5Grindavík8°9°6
- 6Borgarnes8°8°5
- 7Ólafsvík8°9°4
- 8Hveragerði8°9°4
- 12SiglufjörðurThis page7°6°0
Places nearby4 places within 212 km
Near Siglufjörður
Other destinations close by.
Places with a similar climatee.g. Ísafjörður and Stykkishólmur
Places with a climate like Siglufjörður
Destinations whose weather through the year is closest to Siglufjörður's – good alternatives.
Frequently asked questions about Siglufjörður
When is the best time to visit Siglufjörður?
The best time to visit Siglufjörður is from June to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Siglufjörður?
The sea temperature in Siglufjörður ranges from 3.0 °C in March to 8.9 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Siglufjörður in October?
Only if you don't mind cold water: in October the sea averages just 6.3 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Siglufjörður?
August is the warmest month, with average highs of 12 °C and nights around 8 °C. March is the coolest month at 4 °C.
When does it rain most in Siglufjörður?
Rain is frequent from September to May; the wettest month is October with 133 mm. The driest month is June with 62 mm.
How many hours of sunshine does Siglufjörður get?
Siglufjörður gets around 1,060 hours of sunshine a year. The sunniest month is June with 6.3 hours a day; in December there is practically no direct sun.
What time zone is Siglufjörður in?
Siglufjörður is on UTC all year.
How long is the flight from London to Siglufjörður?
A nonstop flight from London to Siglufjörður takes about 2 h 50 min, for a straight-line distance of about 1,930 km.
Which school holidays are best for Siglufjörður?
Siglufjörður has its best school-holiday weather during the summer holidays (score 38) and its weakest during October half-term (score 0). Holiday ratings (0–100): Easter holidays 10, May half-term 22, summer holidays 38, October half-term 0, Christmas holidays 1.