Forth, United Kingdom experiences average highs of 11°C (52°F) and lows of 5°C (41°F) throughout the year. Rainfall is frequent, averaging about 15 rainy days per month. Average highs have warmed by 1.1°C (2.0°F) across the available records.
Forth, United Kingdom Weather & Climate 2026
Monthly climate averages for Forth, United Kingdom. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Nov 
Wetter season: Feb–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
3.7/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 11°C / 5°C
Feels Like 8°C / 2°C
Rainy Days 15
Rainfall 89 mm
Sunshine 7 h
Humidity 84%
Wind Speed 20 km/h
Dew Point 5°C
Snow Days 5 days
Frost Days 7 days
Hottest Month
17°C
July
Avg Low11°C
Rain16days
Coldest Month
0°C
January
Avg High5°C
Rain14days
Driest Month
11days
April
Avg High10°C
Avg Low3°C
Windiest Month
25 km/h
February (Gusts 53)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures, heavy rainfall.
Sun Position
Sunrise 04:31
Daylight 17.5h
Sunset 22:02
Live conditions—
Forth on the map · live conditions
Forth, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Forth
- Population
- 2.2K
- Coordinates
- 55.77°, -3.69°
Seasonal Breakdown
Spring
Mar–May
Avg High 10°C
Avg Low 3°C
Rain 13 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 16°C
Avg Low 10°C
Rain 16 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 11°C
Avg Low 6°C
Rain 15 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 5°C
Avg Low 1°C
Rain 15 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: 5°C / 0°C . Feb: 6°C / 1°C . Mar: 7°C / 2°C . Apr: 10°C / 3°C . May: 14°C / 6°C . Jun: 16°C / 9°C . Jul: 17°C / 11°C . Aug: 17°C / 11°C . Sep: 15°C / 9°C . Oct: 11°C / 6°C . Nov: 7°C / 3°C . Dec: 6°C / 2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 92 mm. Feb: 106 mm. Mar: 84 mm. Apr: 57 mm. May: 68 mm. Jun: 86 mm. Jul: 96 mm. Aug: 97 mm. Sep: 89 mm. Oct: 106 mm. Nov: 82 mm. Dec: 104 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 90%. Feb: 86%. Mar: 83%. Apr: 78%. May: 77%. Jun: 78%. Jul: 81%. Aug: 82%. Sep: 83%. Oct: 87%. Nov: 89%. Dec: 91%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 25 km/h . Mar: 21 km/h . Apr: 19 km/h . May: 18 km/h . Jun: 19 km/h . Jul: 18 km/h . Aug: 19 km/h . Sep: 20 km/h . Oct: 21 km/h . Nov: 20 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 3h. Feb: 5h. Mar: 6h. Apr: 9h. May: 10h. Jun: 10h. Jul: 9h. Aug: 9h. Sep: 7h. Oct: 5h. Nov: 4h. Dec: 2h.
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 5. Jul: UV 5. Aug: UV 5. Sep: UV 3. 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: 8 days. Feb: 8 days. Mar: 5 days. Apr: 2 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 2 days. Dec: 5 days.
Climate Trends
Average highs have warmed by 1.1°C (2.0°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 18°C | Jul · 17°C |
| Coldest month | Jan 2025 · 0°C | Jan · 0°C |
| Wettest month | Nov 2025 · 145 mm | Feb · 106 mm |
| Windiest month | Jun 2025 · 23 km/h | Feb · 25 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Fair June best
Good July best
Fair August best
Fair September best
Fair October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / 0°C | 1°C / -4°C | 14days (92 mm) Wet | 3h Poor | 90% Very Muggy | 0.8 Low | Poor | View Details |
| February | 6°C / 1°C | 1°C / -3°C | 16days (106 mm) Wet | 4.7h Fair | 86% Very Muggy | 1.2 Low | Poor | View Details |
| March | 7°C / 2°C | 3°C / -2°C | 15days (84 mm) Wet | 6.4h Fair | 83% Humid | 2.5 Moderate | Poor | View Details |
| April | 10°C / 3°C | 6°C / -1°C | 11days (57 mm) Wet | 8.9h Good | 78% Humid | 3.9 Moderate | Poor | View Details |
| May best | 14°C / 6°C | 11°C / 3°C | 13days (68 mm) Wet | 10h Excellent | 77% Humid | 5.1 High | Fair | View Details |
| June best | 16°C / 9°C | 14°C / 7°C | 15days (86 mm) Wet | 10.1h Excellent | 78% Humid | 5.4 High | Good | View Details |
| July best | 17°C / 11°C | 15°C / 9°C | 16days (96 mm) Wet | 9.1h Good | 81% Humid | 4.8 Moderate | Fair | View Details |
| August best | 17°C / 11°C | 15°C / 9°C | 16days (97 mm) Wet | 8.6h Good | 82% Humid | 4.5 Moderate | Fair | View Details |
| September best | 15°C / 9°C | 12°C / 6°C | 15days (89 mm) Wet | 6.8h Fair | 83% Humid | 3.3 Moderate | Fair | View Details |
| October | 11°C / 6°C | 8°C / 3°C | 17days (106 mm) Wet | 4.7h Fair | 87% Very Muggy | 1.7 Low | Poor | View Details |
| November | 7°C / 3°C | 4°C / -1°C | 14days (82 mm) Wet | 3.6h Poor | 89% Very Muggy | 0.9 Low | Poor | View Details |
| December | 6°C / 2°C | 2°C / -2°C | 16days (104 mm) Wet | 2.2h Poor | 91% Very Muggy | 0.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Forth 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 Forth, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Forth is July, with average daytime highs of 17°C (62°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Forth is January, with average overnight lows of 0°C (33°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Forth is February, averaging 106mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Forth runs through October, February, July, August, with the heaviest rainfall in October. Based on 10-year averages for Forth.
Forth receives approximately 78 sunshine hours per year. The sunniest month is June with around 10 hours. Based on climate data for Forth.
The least favorable months to visit Forth are January, February, March, 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 Forth is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Forth is 84%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes, Forth receives snow. Months with snowfall average 5 snow days and 7 cm (3 in) of accumulation, with about 7 frost days during winter.
Average wind speeds in Forth are 20 km/h (12 mph). The windiest month is February with peak winds reaching 25 km/h (15 mph) (gusts up to 53 km/h / 33 mph).
Forth averages 1 clear-sky days per month with overall cloud cover around 75%. The clearest skies occur in April.
The annual average dew point in Forth is 5°C (41°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Forth 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 Forth ranges from 2°C (36°F) to 8°C (46°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 Forth. It earns a climate score of 6.6/10 with Good.
For June in Forth, pack Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. With average highs of 16°C (61°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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