Millom, United Kingdom experiences average highs of 12°C (54°F) and lows of 8°C (46°F) throughout the year. Rainfall is frequent, averaging about 17 rainy days per month. Average highs have warmed by 0.7°C (1.3°F) across the available records.
Millom, United Kingdom Weather & Climate 2026
Monthly climate averages for Millom, United Kingdom. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Jul 
Wetter season: Aug–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 12°C / 8°C
Feels Like 9°C / 5°C
Rainy Days 17
Rainfall 138 mm
Sunshine 7 h
Humidity 82%
Wind Speed 26 km/h
Dew Point 7°C
Snow Days 2 days
Frost Days 2 days
Hottest Month
18°C
July
Avg Low14°C
Rain17days
Coldest Month
4°C
January
Avg High7°C
Rain17days
Driest Month
12days
April
Avg High11°C
Avg Low6°C
Windiest Month
31 km/h
February (Gusts 56)
Sea Temperature
6°C – 18°C
Warmest water: August (
17.9°C
)
Worst Time to Visit
Consider avoiding January, February, December due to very cold temperatures, heavy rainfall.
Sun Position
Sunrise 04:40
Daylight 17.2h
Sunset 21:49
Live conditions—
Millom on the map · live conditions
Millom, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Millom
- Population
- 6K
- Coordinates
- 54.21°, -3.27°
Seasonal Breakdown
Spring
Mar–May
Avg High 11°C
Avg Low 6°C
Rain 13 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 17°C
Avg Low 13°C
Rain 17 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 10°C
Rain 18 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 7°C
Avg Low 4°C
Rain 18 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 7°C / 4°C . Feb: 7°C / 4°C . Mar: 9°C / 4°C . Apr: 11°C / 6°C . May: 14°C / 9°C . Jun: 17°C / 12°C . Jul: 18°C / 14°C . Aug: 18°C / 14°C . Sep: 16°C / 12°C . Oct: 13°C / 10°C . Nov: 10°C / 7°C . Dec: 8°C / 5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 148 mm. Feb: 149 mm. Mar: 122 mm. Apr: 74 mm. May: 75 mm. Jun: 105 mm. Jul: 126 mm. Aug: 159 mm. Sep: 173 mm. Oct: 178 mm. Nov: 168 mm. Dec: 184 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 86%. Feb: 84%. Mar: 83%. Apr: 77%. May: 78%. Jun: 79%. Jul: 82%. Aug: 82%. Sep: 82%. Oct: 83%. Nov: 85%. Dec: 88%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 29 km/h . Feb: 31 km/h . Mar: 26 km/h . Apr: 23 km/h . May: 21 km/h . Jun: 22 km/h . Jul: 22 km/h . Aug: 24 km/h . Sep: 26 km/h . Oct: 29 km/h . Nov: 28 km/h . Dec: 29 km/h .
Sunshine
Sunshine
Sunshine: Jan: 3h. Feb: 5h. Mar: 7h. Apr: 10h. May: 11h. Jun: 11h. Jul: 10h. Aug: 10h. Sep: 7h. Oct: 5h. Nov: 4h. Dec: 3h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 6°C . Feb: 6°C . Mar: 7°C . Apr: 10°C . May: 13°C . Jun: 16°C . Jul: 18°C . Aug: 18°C . Sep: 17°C . Oct: 14°C . Nov: 11°C . Dec: 8°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 3. Apr: UV 4. May: UV 5. Jun: UV 6. Jul: UV 5. Aug: UV 5. Sep: UV 4. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 4 days. Feb: 3 days. Mar: 2 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 1 days.
Climate Trends
Average highs have warmed by 0.7°C (1.3°F) across the available records. Average rainfall is trending wetter by about 26 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 19°C | Jul · 18°C |
| Coldest month | Jan 2025 · 2°C | Jan · 4°C |
| Wettest month | Sep 2025 · 318 mm | Dec · 184 mm |
| Windiest month | Nov 2025 · 30 km/h | Feb · 31 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Fair June best
Good July best
Good August best
Wet September best
Wet October
Wet November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 4°C | 3°C / -1°C | 17days (148 mm) Wet | 3.2h Poor | 86% Very Muggy | 0.8 Low | Poor | View Details |
| February | 7°C / 4°C | 3°C / -1°C | 17days (149 mm) Wet | 4.9h Fair | 84% Humid | 1.4 Low | Poor | View Details |
| March | 9°C / 4°C | 5°C / 0°C | 16days (122 mm) Wet | 7h Good | 83% Humid | 3 Moderate | Poor | View Details |
| April | 11°C / 6°C | 8°C / 2°C | 12days (74 mm) Wet | 9.6h Good | 77% Humid | 4.2 Moderate | Poor | View Details |
| May best | 14°C / 9°C | 13°C / 6°C | 12days (75 mm) Wet | 11h Excellent | 78% Humid | 5.4 High | Fair | View Details |
| June best | 17°C / 12°C | 16°C / 10°C | 15days (105 mm) Wet | 11.2h Excellent | 79% Humid | 5.9 High | Good | View Details |
| July best | 18°C / 14°C | 17°C / 12°C | 17days (126 mm) Wet | 10.4h Excellent | 82% Humid | 5.3 High | Good | View Details |
| August best | 18°C / 14°C | 17°C / 12°C | 18days (159 mm) Wet | 9.5h Good | 82% Humid | 4.8 Moderate | Wet | View Details |
| September best | 16°C / 12°C | 14°C / 10°C | 18days (173 mm) Wet | 7.4h Good | 82% Humid | 3.5 Moderate | Wet | View Details |
| October | 13°C / 10°C | 10°C / 6°C | 19days (178 mm) Wet | 5.1h Fair | 83% Humid | 2 Low | Wet | View Details |
| November | 10°C / 7°C | 6°C / 2°C | 18days (168 mm) Wet | 3.6h Poor | 85% Humid | 1 Low | Wet | View Details |
| December | 8°C / 5°C | 4°C / 0°C | 20days (184 mm) Wet | 2.5h Poor | 88% Very Muggy | 0.6 Low | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Millom are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Millom, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Millom is July, with average daytime highs of 18°C (64°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Millom is January, with average overnight lows of 4°C (38°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Millom is December, averaging 184mm of precipitation across 20 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Millom runs through December, October, August, September, with the heaviest rainfall in December. Based on 10-year averages for Millom.
Millom receives approximately 85 sunshine hours per year. The sunniest month is June with around 11 hours. Based on climate data for Millom.
The least favorable months to visit Millom are January, February, December, primarily due to very cold temperatures, heavy rainfall. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Millom is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Millom is 82%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Sea temperatures in Summer average 12°C (54°F), which most swimmers will find too cold without a wetsuit.
Yes, Millom receives snow. Months with snowfall average 2 snow days and 2 cm (1 in) of accumulation, with about 2 frost days during winter.
Average wind speeds in Millom are 26 km/h (16 mph). The windiest month is February with peak winds reaching 31 km/h (19 mph) (gusts up to 56 km/h / 35 mph).
Millom averages 1 clear-sky days per month with overall cloud cover around 71%. The clearest skies occur in May.
The annual average dew point in Millom is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Millom has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Millom ranges from 5°C (41°F) to 9°C (48°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Millom. It earns a climate score of 6.5/10 with Good.
For June in Millom, pack Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. With average highs of 17°C (62°F) and 15 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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