UK

Best Time to Dive in the Farne Islands

55.63°N 1.60°W

Dive it May to September for the long days — 15.4 hours of light against 9.5. The marine life holds steady all year, so the weather picks the month. The full season runs April to September.

Best time
May–Sep
Water
715 °C
Visibility
015 m
Season runs
Apr–Sep
Dived from
day boat
Tidal range
2.24.5 m
Species logged
8

Worth knowing: water around 10 °C.

Where it is

UK
25 kmN

111 km across · coastline from Natural Earth 10m

Diving in the Farne Islands — monthly breakdown

Best months at this destination

A year of scuba diving conditions at a glance. Hover a month to isolate it.

Month by month conditions, water temperature, visibility and marine life
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
ConditionsPoorPoorModerateGoodExcellentExcellentExcellentExcellentGoodModeratePoorPoor
Water temp (°C)8778101214151412119
Visibility (m)010515515515515515515515515
Marine lifePeakPeakPeakPeakPeakPeakPeakPeakPeakPeakPeakPeak
Best timePeakPeakPeakPeakPeak
Excellent Good Moderate PoorPeak season May–Sep

Long-term averages, 2016–2025. Visibility is estimated from satellite chlorophyll-a. Water temperature is the surface mean; it is cooler at depth.

The Farne Islands diving season

4 seasons

March · Shoulder season

1 month
Water temperature
77 °C
Visibility
515 m
Rain
14 days a month

Diving conditionsThe wind is up. The sea is rougher.

Marine lifeGrey seal (near-guaranteed) peaks at Farne Islands in these months.

April to September · Peak season

6 months
Water temperature
815 °C
Visibility
515 m
Rain
13 days a month

Diving conditionsThe wind eases. The sea is calmer.

Marine lifeGrey seal (near-guaranteed), Basking shark (likely) peak at Farne Islands in these months.

October · Shoulder season

1 month
Water temperature
1212 °C
Visibility
515 m
Rain
15 days a month

Diving conditionsExpect some swell.

Marine lifeGrey seal (near-guaranteed) peaks at Farne Islands in these months.

November to February · Off season

4 months
Water temperature
711 °C
Rain
13 days a month

Diving conditionsThe wind is up. The sea is rougher.

Marine lifeGrey seal (near-guaranteed) peaks at Farne Islands in these months.

  • Spring tides run 4.5 m against 2.2 m on neaps, so currents build around the full and new moon.
  • Water temperature is satellite sea-surface temperature, so expect it cooler below the thermocline.
  • Visibility is estimated from satellite chlorophyll-a.

Farne Islands water temperature and weather

9,670 underwater observation records · 32 surveyed years of ocean data · 10 years of sea temperature

Water & weather

Farne Islands water temperature by month

The dashed line is the monthly average. Eight days in ten fall inside the band.

6810121416JanFebMarAprMayJunJulAugSepOctNovDecSea temperature (°C)

10th to 90th percentile rangemonthly mean

9
rough days a month

Seas top 1.5 m on 31% of days. Enough to cancel a day boat

2
blowy days a month

Gusts over 40 km/h, about where a day boat stays in port

13
wet days a month

2 of them bring heavy rain

Monthly sea state, wind, rain, air temperature and daylight
MonthSwellGusts over 40 km/hWet daysHeavy rainAirDaylight
January2.8 m13%1127 °C7.4 h
February2.3 m15%1318 °C9.3 h
March2.4 m6%1419 °C11.4 h
April2.1 m3%10111 °C13.9 h
May1.8 m2%12114 °C16.0 h
June1.3 m1%11217 °C17.2 h
July1.4 m1%16219 °C16.7 h
August1.4 m1%15219 °C14.8 h
September2.1 m2%14217 °C12.4 h
October2.8 m8%15313 °C10.1 h
November2.8 m7%14310 °C7.9 h
December2.8 m13%1438 °C6.8 h

Swell is the rough end of the month: nine days in ten come in under it. Sea temperature covers 10 years, waves 4.

Pick your week

48 weeks from the daily record. Darker is better, against this site's own year. Pick a month for the detail.

Conditions by week, four weeks per month
Week 1January week 1: PoorFebruary week 1: PoorMarch week 1: PoorApril week 1: ModerateMay week 1: ExcellentJune week 1: GoodJuly week 1: ExcellentAugust week 1: ExcellentSeptember week 1: ExcellentOctober week 1: GoodNovember week 1: ModerateDecember week 1: Poor
Week 2January week 2: PoorFebruary week 2: PoorMarch week 2: PoorApril week 2: GoodMay week 2: ExcellentJune week 2: ExcellentJuly week 2: ExcellentAugust week 2: ExcellentSeptember week 2: ExcellentOctober week 2: GoodNovember week 2: ModerateDecember week 2: Poor
Week 3January week 3: ModerateFebruary week 3: ModerateMarch week 3: GoodApril week 3: ExcellentMay week 3: ExcellentJune week 3: ExcellentJuly week 3: ExcellentAugust week 3: ExcellentSeptember week 3: GoodOctober week 3: PoorNovember week 3: PoorDecember week 3: Moderate
Week 4January week 4: ModerateFebruary week 4: ModerateMarch week 4: GoodApril week 4: GoodMay week 4: GoodJune week 4: ExcellentJuly week 4: ExcellentAugust week 4: ExcellentSeptember week 4: ModerateOctober week 4: PoorNovember week 4: PoorDecember week 4: Poor
Excellent Good Moderate PoorBest week to go: fourth of August

August, week by week

WeekConditionsWaterSwellWindRain chance
Week 1Excellent15 °C1.5 m20 km/h59%
Week 2Excellent15 °C1.5 m21 km/h50%
Week 3Excellent15 °C1.4 m22 km/h48%
Week 4Excellent14 °C1.3 m21 km/h42%

10 years of daily records, averaged into weeks.

Gear & storms

What to wear

Off the coldest water of each month, not the average — that is what the suit has to cope with.

Wetsuit thickness by month
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
SuitJanuary: dryFebruary: dryMarch: dryApril: dryMay: dryJune: dryJuly: dryAugust: 7 mmSeptember: dryOctober: dryNovember: dryDecember: dry
  • Sep–Juldrysuit
  • Aug7 mm semi-dry

Swell through the year

The rough end of each month — nine days in ten come in under it.

JanJanuary: 2.8 metresFebFebruary: 2.3 metresMarMarch: 2.4 metresAprApril: 2.1 metresMayMay: 1.8 metresJunJune: 1.3 metresJulJuly: 1.4 metresAugAugust: 1.4 metresSepSeptember: 2.1 metresOctOctober: 2.8 metresNovNovember: 2.8 metresDecDecember: 2.8 metres

Amber is over 1.5 m.

Tides

springs 5.2 mneaps 1.8 mneapsone lunar month
Daily tidal range across one lunar month.

Tropical storms

No tropical storm has come within 250 km in 30 years of records. Swell and wind set the season, not cyclones.

  • NOAASea surface temperature, from OISST and MUR
  • ERA5Wind, waves, rain and air temperature, via Open-Meteo
  • OBISMarine species records within 60 km
  • IBTrACSTropical cyclone tracks, 1996 to 2025

Farne Islands marine life — what you'll see diving

9,670 records within 60 km
SpeciesWhenObserved windowReliabilityEvidenceRecords
Minke whaleJun–AugNear-guaranteed
30/32
327
Grey sealAll yearNear-guaranteed
29/32
7283
Bottlenose dolphinAll yearNear-guaranteed
25/32
1904
Basking sharkSepLikely
12/32
35
OrcaJun–AugHit-or-miss
7/32
39
Harbour sealJul–SepHit-or-miss
8/32
18
Humpback whaleFeb, Jun, SepHit-or-miss
9/32
25
Common dolphinMay, Jul–Aug, NovLikely
10/32
17
Peak Present
Observed window
Months with records. Peak is where most of them fall.
Reliability
  • Near-guaranteed in 60% of surveyed years or more
  • Likely 30% to 60%
  • Hit-or-miss under 30%
Evidence
Years it was seen, out of the years anyone surveyed.
Records
OBIS sightings within 60 km.

These are sightings people logged, not a full survey of the reef. A species missing from a month may just mean nobody recorded one.

Diving the Farne Islands — common questions

When is the best time to dive the Farne Islands?
Dive it May to September for the long days — 15.4 hours of light against 9.5. The marine life holds steady all year, so the weather picks the month. The full season runs April to September.
When is the diving season at the Farne Islands?
The diving season at the Farne Islands runs April to September, and it is at its best May to September.
Is the diving at the Farne Islands good for beginners?
Not really. It is for experienced divers, so it is not a place to learn or to make your first dives after certification.
How warm is the water at the Farne Islands?
Between 7 and 15 °C at the surface across the year, coldest in March and warmest in August. It runs cooler below the thermocline.
What wetsuit do I need at the Farne Islands?
A drysuit covers the coldest water of the year. In the warmest months a 7 mm semi-dry is enough.
What is the visibility like at the Farne Islands?
Roughly 0 to 15 m depending on the month. That is estimated from satellite chlorophyll-a rather than measured in the water.
What will I see diving the Farne Islands?
The most consistently recorded species are Minke whale (near-guaranteed), Grey seal (near-guaranteed) and Bottlenose dolphin (near-guaranteed), from 9,670 records within 60 km.
Does the Farne Islands get tropical storms?
No. None has passed within 250 km in 30 years of records.
Is there current at the Farne Islands?
The tide rises and falls 4.5 m around the full and new moon, against 2.2 m in between. How much of that becomes current depends on the shape of the channel.
When should I avoid the Farne Islands?
December is the weakest month for conditions.
How do you dive the Farne Islands?
Mostly from day boats. Trips run through the season, Apr–Sep.

Elsewhere in the UK

1 other site