- Book hotels in the UK for £35 or less (London from £49)
- Prices based on lowest saver room rates. T&Cs apply
- Travel before 20th March 2026 (inclusive)
Best time to visit Hertfordshire
The best times to visit Hertfordshire (Watford) are in July and August based on our default weather conditions. Update your weather preferences to see which months best match.
Hertfordshire by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Hertfordshire
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Top Hertfordshire destinations
When is the best time to visit Hertfordshire?
The best times to visit Hertfordshire (Watford) are in July and August based on the following average weather conditions.
Maximum daytime temperature = 22 - 30°C [remove]
Change the criteria to reflect your weather preferences.
Max Day Temperature (°C)
- Jan
7 - Feb7
- Mar
10 - Apr
13 - May
17 - Jun
20 - Jul
22 - Aug22
- Sep19
- Oct15
- Nov10
- Dec7
Best time to visit
The weather guide for Hertfordshire (Watford) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Hertfordshire
Explore our complete guide to Hertfordshire with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Hertfordshire.
- Essential information
- Ready to book?
- Top travel deals
- Travel advice
- Travel health
- Travel features
- FAQs
Hertfordshire essential information
Below is a beginner's guide to Hertfordshire with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.
| Hertfordshire - quick facts | |
|---|---|
| Time difference | UK +0 hours |
| Language(s) | English |
| Currency | Pound Sterling |
| Electricity | G plug (230V) |
| Driving side | Left |
Travelling to Hertfordshire?
Discover where to book holidays, flights, hotels and more from popular travel providers for your trip to Hertfordshire in 2026/2027.
Holidays to Hertfordshire
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Secret Escapes Members-only travel club offering exclusive deals on hand-picked luxury hotels and holidays to UK and more. |
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Spa Seekers Leading UK spa booking specialist offering spa days, overnight breaks and experiences to over 500 UK locations. |
Hotels in Hertfordshire
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Travelodge Britain's first budget hotel chain. Offers great-value accommodation across the UK, Ireland and Spain. |
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Hilton Leading global hospitality brand with a portfolio of 9,000 properties across 141 countries and territories including UK. |
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IHG Leading global hotel group with a portfolio of international brands including Holiday Inn, Crowne Plaza and more. |
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Marriott The world's largest hotel company with a portfolio of 30+ brands and almost 9,600 properties across 143 countries. |
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Best Western Well-known independent hotel group with over 4,000 hotels across 80+ countries including UK. |
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Premier Inn Find and book great-value rooms across the UK and beyond with the UK's biggest hotel brand. |
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Spabreaks.com Europe's largest spa booking agency offers low-cost spa days, holidays and retreats in Hertfordshire, UK and beyond. |
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Booking.com Leading global OTA founded in Amsterdam. Offers worldwide accommodation, flights, car hire, activities and more. |
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Hotels.com Part of Expedia Group, this major OTA offers deals and discounts on hotel rooms worldwide including in Hertfordshire, UK. |
Accommodation in Hertfordshire
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Hoseasons One of the UK's leading self-catering accommodation specialists with over 30,000 places to stay in England, Scotland and Wales. |
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Snaptrip Find your next UK holiday rental with this online travel marketplace offering cottages, lodges, hotels and villa holidays. |
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The Plum Guide Premium travel platform handpicking the best vacation rentals, holiday homes, short-term lets and Airbnbs across 25+ sites. |
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VRBO Owned by Expedia Group, this online holiday marketplace offers a unique selection of 2+ million homes worldwide. |
Things to do in Hertfordshire
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English Heritage This charity manages 400 historic sites across the UK. Sign up to enjoy unlimited days out – kids go free. |
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Viator |
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Get Your Guide Major global marketplace specialising in travel experiences. Covers tours and attractions across six continents. |
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RHS |
Buses & trains in Hertfordshire
Car hire in Hertfordshire
Money transfers to Hertfordshire
Airport taxis for Hertfordshire
Hertfordshire travel deals
Check out the latest deals, discount codes and special offers on holidays, flights, hotels and more for Hertfordshire in 2026/2027. Pay low deposits and save with last minute holidays, early bird offers and free kids places where available.
- Book hotels in the UK for £35 or less (London from £49)
- Prices based on lowest saver room rates. T&Cs apply
- Travel before 20th March 2026 (inclusive)
Expires at 23:59 on Friday 20th Mar 2026 · View all Travelodge offers
Hotel deal finder
- Save up to 30% on UK breaks in 2026 with Hoseasons
- Book holidays in Yorkshire, Cornwall, Lake District & more
- Travel before 31st December 2026 (inclusive)
Expires at 23:59 on Monday 2nd Feb 2026 · View all Hoseasons offers
- Save up 25% on day tickets at Hertfordshire Zoo
- Use promo code at check out for discount to apply
- Book days out and visit over 800 animals
Show discount code
******T25
******T25
Expires at 23:59 on Saturday 31st Jan 2026 · View all Hertfordshire Zoo offers
Hertfordshire travel advice
Check the latest travel advice and guidance on visiting Hertfordshire from official government sources (in english) from around the world including entry requirements and travel restrictions.
- Irish traveller advice for Hertfordshire - Department of Foreign Affairs, Ireland
- Canadian travel advice for Hertfordshire - Government of Canada
- US travel advisories for Hertfordshire - US Department of State
- Safe travel advisories for Hertfordshire - Ministry of Foreign Affairs, New Zealand
- Smarter traveller advice for Hertfordshire - Department of Foreign Affairs, Australia
Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Hertfordshire.
Note: UK FCDO - UK Foreign, Commonwealth & Development Office
Hertfordshire travel health
Find out more about staying safe when travelling to Hertfordshire with the latest guidance on required vaccinations and recommended medication to take with you.
- Vaccines & medicines for Hertfordshire - CDC
- Health & vaccinations for Hertfordshire - TravelHealthPro, NaTHNac
- How to stay safe & healthy in Hertfordshire - Fit for Travel, Public Health Scotland
Check out the general travel tips for staying safe and healthy in Hertfordshire, risks of preventable diseases and what to pack.
Note: CDC - Centers for Disease Control and Prevention
Hertfordshire travel features
Do you want to learn more about Hertfordshire? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Hertfordshire.
We don't currently have any travel features on Hertfordshire. Discover more about holiday destinations around the world with this selection of general travel articles.
Hertfordshire FAQs
Read our frequently asked questions about travelling to Hertfordshire including the current entry restrictions, driving side, electrical plugs used and much more.
Which is the hottest month in Hertfordshire?
The hottest time of year in Watford, Hertfordshire is normally July. Expect maximum daytime temperatures to reach 22°C.
Which month has the most rain in Hertfordshire?
In terms of rainfall, December is usually the wettest month in Watford, Hertfordshire with 64mm on average. There are normally 15 days in December with some rain.
When is it sunniest in Hertfordshire?
The sunniest time of year in Watford, Hertfordshire is normally August with bright sunshine on average for 41% of daylight hours; that's 6 hours of sunshine per day.
What is the time difference between Hertfordshire and the UK?
The time difference between Hertfordshire and the UK is UK time+0 hours.
What is the main language spoken in Hertfordshire?
The main language spoken in Hertfordshire is English.
Learn a language for Hertfordshire with Busuu*, Rocket Languages* and Rosetta Stone*.
What is the currency in Hertfordshire?
The currency in Hertfordshire is the Pound Sterling (GBP).
Send money to Hertfordshire with TransferGo*, Wise.com* and World Remit*.
Which plugs are used in Hertfordshire?
Hertfordshire uses electrical plug type G (230 Volts).
Which side of the road do they drive on in Hertfordshire?
They drive on the left side of the road in Hertfordshire.
Find out more about driving in UK with International Drivers Association*.
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