Live Weather & Forecast
Weather in Harpenden
England, United Kingdom · Real-time conditions & 3-day outlook
3°C
Feels like 2°C
37°F / Feels 36°F
Sunny
Harpenden, England
🌞 Daytime
Updated: 2026-04-13 08:00
Humidity
100%
Wind
4.3 km/h SSW
Wind Gust
6.7 km/h
Pressure
1013 mb
Visibility
10 km
UV Index
0.4
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
2.8°C
Wind Degree
195°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
184.9 μg/m³
NO₂
19.3 μg/m³
O₃
37 μg/m³
SO₂
2.1 μg/m³
PM 2.5
10 μg/m³
PM 10
17.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Harpenden, England
12 AM
5°
Clear
1 AM
5°
Clear
2 AM
4°
Clear
3 AM
4°
Clear
4 AM
4°
Clear
5 AM
3°
Clear
6 AM
3°
Clear
7 AM
4°
Sunny
8 AM
3°
Sunny
9 AM
7°
Sunny
10 AM
9°
Sunny
11 AM
10°
Patchy rain nearby
12 PM
11°
Patchy rain nearby
1 PM
11°
Patchy rain nearby
2 PM
12°
Patchy rain nearby
3 PM
12°
Patchy rain nearby
4 PM
12°
Patchy rain nearby
5 PM
12°
Patchy rain nearby
6 PM
11°
Patchy rain nearby
7 PM
10°
Patchy rain nearby
8 PM
8°
Patchy rain nearby
9 PM
7°
Clear
10 PM
6°
Clear
11 PM
6°
Clear
3-Day Forecast
Daily overview for Harpenden, England
Today
Patchy rain nearby
12°
/
3°
🌧️ 92% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 1.32 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:09 AM
🌇 Sunset: 07:56 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
14°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 20.5 km/h
🌧️ Total precip: 0.06 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:07 AM
🌇 Sunset: 07:57 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Patchy rain nearby
13°
/
8°
🌧️ 88% chance of rain
💧 Avg. humidity: 93%
💨 Max wind: 25.6 km/h
🌧️ Total precip: 2.83 mm
☀️ UV Index: 0.5
🌅 Sunrise: 06:05 AM
🌇 Sunset: 07:59 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Harpenden
Plan your trip to Harpenden, United Kingdom around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Harpenden?
Current conditions in Harpenden: Sunny, temperature 3°C, humidity 100%.
What is the best time to visit Harpenden?
The best time to visit Harpenden is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Harpenden?
Harpenden is located at approximately 51.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Harpenden?
The wettest period in Harpenden is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Harpenden?
For visits to Harpenden during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Harpenden in?
Harpenden is located in United Kingdom, in the state of England.
What are the public holidays in Harpenden in 2026?
View the 2026 public holidays for Harpenden on our Holidays page.
What are the GPS coordinates used for the weather forecast in Harpenden?
The weather forecast for Harpenden uses coordinates 51.8145, -0.3549.