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Haverfordwest weather & best time to visit

Sun, sea & sand

Haverfordwest at a glance

Best time
May – Aug
Warmest month
Jul · 20°
Warmest sea
Aug · 16.7°
Sunshine a year
1,870 h
Rain a year
1,018 mm
Climate
Maritime
Time zone
UTC+0 / UTC+1
Elevation
17 m

Climate in Haverfordwest

Haverfordwest has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 20 °C, while January is the coolest at 9 °C. With around 1,870 hours of sunshine a year, Haverfordwest is moderately sunny; June is the sunniest month with 8.1 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Haverfordwest

The best time to visit Haverfordwest is from May to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 16.7 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to June. Rain is frequent from September to March; the wettest month is November with 121 mm.

Haverfordwest through the seasons

How the weather changes over the seasons, with averages for each.

Haverfordwest in spring

Mar – May

20

Poor

  • 11–16 °C by day
  • Sea 10 °C
  • 6.4 h of sun a day
  • 36 rainy days in all

Haverfordwest in summer

Jun – Aug

26

Poor

  • 18–20 °C by day
  • Sea 15 °C
  • 7.6 h of sun a day
  • 37 rainy days in all

Haverfordwest in autumn

Sep – Nov

8

Poor

  • 12–18 °C by day
  • Sea 15 °C
  • 4.0 h of sun a day
  • 46 rainy days in all

Haverfordwest in winter

Dec – Feb

5

Poor

  • 9–10 °C by day
  • Sea 10 °C
  • 2.4 h of sun a day
  • 43 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Jun

15–28 °C and not too much rain

Rainy months

Sep – Mar

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Haverfordwest for you.

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

6

Holiday weather in October

Poor

Best time to visit: May – August

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 10°
  2. Midday, 13:00: about 14°
  3. Afternoon, 16:00: about 15°
  4. Evening, 20:00: about 13°
  5. Night, 23:00: about 12°

07:4218:29

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:21–08:28 · evening 17:42–18:50
Blue hour
Morning 07:08–07:21 · evening 18:50–19:03

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 Haverfordwest compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 16° at the start of the month to 13° at the end. The sea cools from 16° to 14°. The days get 1.9 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high16°13°
Night-time low11°9°
Sea16°14°
Daylight11.7 h9.8 h

What is the weather like in Haverfordwest in October?

In October, Haverfordwest is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 15.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3.9 hours a day. It rains often – on about 16 days, adding up to 118 mm. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, October is not an ideal month for a holiday in Haverfordwest.

More details for October

Daylight
10 h 46 min07:42 – 18:29
UV index
2 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
32 km/haverage daily peakAll months
Cloud cover
72 %on averageAll months
Hot days
0 days30 °C or more
Time zone
UTC+1offset from UTC

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %15 %
  • Few rainy daysweight 20 %14 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella
  • Windproof jacket

Compare two months in Haverfordwest

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Haverfordwest: score 28 against 6. In July, days are 5 °C warmer than in October. The sea is 1 °C warmer in July. July has 3 fewer rainy days. The sun shines 4 hours longer a day in July.

October vs July, Haverfordwest
MonthOctoberJuly
Holiday weather score628better
Daytime high15°20°
Night-time low10°14°
Sea15.1°15.7°
Sunshine3.9 h7.7 hbetter
Rainy days1613better
Rainfall118 mm68 mmbetter

Based on the climate averages 1996–2025.

Haverfordwest month by month

The typical weather for every month at a glance.

4January9° · Sea 9° · 2.1 h

In January, Haverfordwest is cold: daytime highs average 9 °C, and nights cool down to about 5 °C. The sea averages 9.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2.1 hours a day. It rains often – on about 15 days, adding up to 101 mm. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, January is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in January
9February9° · Sea 8° · 3.3 h

In February, Haverfordwest is cold: daytime highs average 9 °C, and nights cool down to about 5 °C. The sea averages 8.4 °C – swimming is only for the hardy. The sun is scarce, with only about 3.3 hours a day. Rain is frequent, with about 12 rainy days and 77 mm in total. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, February is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in February
13March11° · Sea 8° · 4.5 h

In March, Haverfordwest is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 8.3 °C – swimming is only for the hardy. Expect around 4.5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 68 mm in total. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, March is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in March
22April13° · Sea 9° · 6.8 h

In April, Haverfordwest is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sea averages 9.4 °C – swimming is only for the hardy. The sun shines for around 6.8 hours a day. Rain is frequent, with about 12 rainy days and 62 mm in total. All in all, April is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in April
26May16° · Sea 11° · 8.0 h

In May, Haverfordwest is cool: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 11.3 °C – swimming is only for the hardy. The sun shines for around 8.0 hours a day. Rain is frequent, with about 12 rainy days and 62 mm in total. All in all, May is not an ideal month for a holiday in Haverfordwest – and yet one of the best months here.

Haverfordwest in May
26June18° · Sea 14° · 8.1 h

In June, Haverfordwest is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 13.7 °C – swimming is only for the hardy. The sun shines for around 8.1 hours a day. Rain is frequent, with about 12 rainy days and 65 mm in total. All in all, June is not an ideal month for a holiday in Haverfordwest – and yet one of the best months here.

Haverfordwest in June
28July20° · Sea 16° · 7.7 h

In July, Haverfordwest is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 15.7 °C – swimming is only for the hardy. The sun shines for around 7.7 hours a day. Rain is frequent, with about 13 rainy days and 68 mm in total. All in all, July is not an ideal month for a holiday in Haverfordwest – and yet one of the best months here.

Haverfordwest in July
24August20° · Sea 17° · 7.1 h

In August, Haverfordwest is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 16.7 °C – swimming is only for the hardy. The sun shines for around 7.1 hours a day. Rain is frequent, with about 13 rainy days and 80 mm in total. All in all, August is not an ideal month for a holiday in Haverfordwest – and yet one of the best months here.

Haverfordwest in August
17September18° · Sea 17° · 5.7 h

In September, Haverfordwest is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 16.5 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 81 mm in total. All in all, September is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in September
6October15° · Sea 15° · 3.9 h

In October, Haverfordwest is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 15.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3.9 hours a day. It rains often – on about 16 days, adding up to 118 mm. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, October is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in October
1November12° · Sea 13° · 2.4 h

In November, Haverfordwest is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 13.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2.4 hours a day. It rains often – on about 18 days, adding up to 121 mm. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, November is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in November
3December10° · Sea 11° · 1.8 h

In December, Haverfordwest is cold: daytime highs average 10 °C, and nights cool down to about 6 °C. The sea averages 10.9 °C – swimming is only for the hardy. The sun is scarce, with only about 1.8 hours a day. It rains often – on about 16 days, adding up to 115 mm. It is often windy: on a typical day the wind peaks at around 35 km/h. All in all, December is not an ideal month for a holiday in Haverfordwest.

Haverfordwest in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Haverfordwest

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°

CoolOctober: nights around 10°. A duvet at night and a jumper for the evening.

The coolest nights are in February (5°), the warmest in August (14°). Nights fall below 8 °C on average from December to April, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 15°Night 10°Sea 15°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan49°5°9.2°2.1 h15101
FebruaryFeb99°5°8.4°3.3 h1277
MarchMar1311°5°8.3°4.5 h1368
AprilApr2213°7°9.4°6.8 h1262
MayMay2616°9°11.3°8.0 h1262
JuneJun2618°12°13.7°8.1 h1265
JulyJul2820°14°15.7°7.7 h1368
AugustAug2420°14°16.7°7.1 h1380
SeptemberSep1718°12°16.5°5.7 h1281
OctoberOct615°10°15.1°3.9 h16118
NovemberNov112°8°13.2°2.4 h18121
DecemberDec310°6°10.9°1.8 h16115

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

51.80° N, 4.97° W · 17 m · Europe/London

Sea temperature
Swimming calendar

Sea temperature in Haverfordwest

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October15.1°Ccold

8 in 10 years: 14.6 – 15.6 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 15.1°8 in 10 years 14.6° – 15.6°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Haverfordwest ranges from 8.3 °C in March to 16.7 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

The sea warms up slowly: it is warmest in August, while the air already peaks in July. From October to January 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 16.1 and 17.4 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan9.2°8.1°10.0°cold
FebruaryFeb8.4°7.4°9.1°cold
MarchMar8.3°7.5°9.1°cold
AprilApr9.4°8.5°10.3°cold
MayMay11.3°10.5°12.3°cold
JuneJun13.7°13.0°14.6°cold
JulyJul15.7°15.0°16.5°cold
AugustAug16.7°16.1°17.4°cold
SeptemberSep16.5°15.9°17.0°cold
OctoberOct15.1°14.6°15.6°cold
NovemberNov13.2°12.5°13.8°cold
DecemberDec10.9°10.1°11.5°cold
Sunshine
Sunshine

Sunshine hours in Haverfordwest

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,870 hours
Sunniest month
Jun · 8.1 h a day
Least sunshine
Dec · 1.8 h a day
OctoberSunshine 3.9 hDaylight 10.8 hShare of daylight 36 %
SunshineDaylight

In October, the sun shines for about 3.9 of 10.8 hours of daylight in Haverfordwest, 36 % 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.

Rain
Rain

Rain in Haverfordwest: 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.

Per year
1,018 mm on 162 days
Wettest month
Nov · 121 mm
Driest month
Apr · 62 mm
OctoberRainy days 16Rainfall 118 mm

In October, Haverfordwest has about 16 rainy days with 118 mm of rain in total.

UV index
Sun protection

UV index in Haverfordwest

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
2 · lowLittle protection needed; sunglasses on bright days.

The sun is strongest in June (UV 7).

Minutes until sunburn in October

Very fair skin
about 70 min
Fair skin
about 90 min
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 & clouds
Wind & clouds

Wind and clouds in Haverfordwest

How breezy and how cloudy Haverfordwest 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.

Year average
29 km/h · fresh breeze
Windiest month
Dec · 35 km/h
Calmest month
Jul · 24 km/h
OctoberWind 32 km/hBeaufort 5
20
WindBeaufort 4

In October, the wind in Haverfordwest typically peaks at 32 km/h during the day: Beaufort 5, fresh 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, and here it is that strong all year.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
68 % · mostly cloudy
Clearest month
Apr · 63 %
Cloudiest month
Nov · 73 %
OctoberCloud cover 72 %Sunshine 3.9 h

In October, cloud covers on average 72 % of the sky over Haverfordwest: mostly cloudy, with about 3.9 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.

Planning a trip to Haverfordwest

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Haverfordwest 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.

Haverfordwest has its best school-holiday weather during May half-term (score 26) and its weakest during the Christmas holidays (score 4).

  • Easter holidays

    Mar – Apr

    19

    Poor

    • 12 °C by day
    • Sea 9 °C
    • 6.1 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain

  • May half-term

    May – Jun

    26

    PoorBest holidays

    • 16 °C by day
    • Sea 12 °C
    • 8.0 h of sun a day
    • 12 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    25

    Poor

    • 20 °C by day
    • Sea 16 °C
    • 7.3 h of sun a day
    • 13 rainy days a month
  • October half-term

    Oct

    6

    Poor

    • 15 °C by day
    • Sea 15 °C
    • 3.9 h of sun a day
    • 16 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    4

    Poor

    • 9 °C by day
    • Sea 10 °C
    • 2.0 h of sun a day
    • 15 rainy days a month

    Keep in mind: Frequent rain

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
Short trip – train or car is often quicker
Distance
310 km
Time zone
UTC+1
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: United Kingdom

Currency
British Pound (GBP)
Language
English
Sockets
Type G · 230 V
Traffic
Drives on the left
Dialling code
+44
Emergency number
999 · 112

UK plugs fit

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

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Haverfordwest compared

Put Haverfordwest side by side with another destination.

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Haverfordwest vs Swansea

In October the holiday weather in Haverfordwest and Swansea is about equally good (score 6 vs 6). During the day it is about as warm in Swansea as in Haverfordwest. The sea is about equally warm.

Haverfordwest vs Swansea, in October
in OctoberHaverfordwestSwansea
Holiday weather score66
Daytime high15°15°
Sea15°15°
Sunshine4 h4 h
Rainy days1616
Best timeMay – AugMay – Sep

Through the year

OctoberHaverfordwest 15°Swansea 15°
HaverfordwestSwansea
Go to Swansea
Best places in the country
Ranking

United Kingdom in October: the best places

In October, Haverfordwest ranks 25 among the 31 nearest destinations in this country.

  1. Wells15°53
  2. 2Glastonbury16°52
  3. 3Bristol15°49
  4. 4Plymouth16°15°49
  5. 5Gloucester15°49
  6. 6Worcester15°49
  7. 7Hereford15°47
  8. 8Bath15°47
  9. 25HaverfordwestThis page15°15°6
All destinations: United Kingdom
Places nearby

Near Haverfordwest

Other destinations close by.

Places with a similar climate

Places with a climate like Haverfordwest

Destinations whose weather through the year is closest to Haverfordwest's – good alternatives.

  1. 86 % similar6LooeUnited Kingdom15°15°Best time: Jul – Aug
  2. 86 % similar50Saint HelierJersey16°16°Best time: Jun – Sep
  3. 85 % similar42LlanfairpwllgwyngyllUnited Kingdom14°14°Best time: May – Sep
  4. 84 % similar6FécampFrance16°16°Best time: Jul – Aug

Frequently asked questions about Haverfordwest

When is the best time to visit Haverfordwest?

The best time to visit Haverfordwest is from May to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Haverfordwest?

The sea temperature in Haverfordwest ranges from 8.3 °C in March to 16.7 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Haverfordwest in October?

Only if you don't mind cold water: in October the sea averages just 15.1 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Haverfordwest?

July is the warmest month, with average highs of 20 °C and nights around 14 °C. January is the coolest month at 9 °C.

When does it rain most in Haverfordwest?

Rain is frequent from September to March; the wettest month is November with 121 mm. The driest month is April with 62 mm.

How many hours of sunshine does Haverfordwest get?

Haverfordwest gets around 1,870 hours of sunshine a year. The sunniest month is June with 8.1 hours a day; in December there are 1.8 hours a day.

What time zone is Haverfordwest in?

Haverfordwest is on UTC+0 in January and UTC+1 in July.

Which school holidays are best for Haverfordwest?

Haverfordwest has its best school-holiday weather during May half-term (score 26) and its weakest during the Christmas holidays (score 4). Holiday ratings (0–100): Easter holidays 19, May half-term 26, summer holidays 25, October half-term 6, Christmas holidays 4.