Monmouth weather in May 2026

Expect daytime maximum temperatures of 61°F in Monmouth, Wales in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 2.6 inches of rainfall in the month.

  • 61°F maximum daytime temperature in May in Monmouth61
    61°F max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in May in Monmouth15
    15 days with some rainfall
  • 45°F minimum night-time temperature in May in Monmouth45
    45°F min night temperature
  • 16 hours of daylight per day in May in Monmouth16
    16 hours of daylight per day
  • No heat & humidity in May in Monmouth0
    No heat & humidity
  • 2.6 inches monthly rainfall in May in Monmouth2.6
    2.6 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Monmouth5
    5 (Moderate) UV index

More about Monmouth

Monmouth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

Forest Holidays: Sign up & get 10% off holidays

  • Sign up to receive Forest Holidays newsletter
  • Save 10% on selected bookings in 2025/2026
  • Stay: 22 Sep 2025 & 17 Dec 2026. Black out dates apply
Go to Forest Holidays deal >>

Expires at 23:59 on Thursday 30th Oct 2025 · View all Forest Holidays offers

The May weather guide for Wales (Monmouth) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about Wales

How warm is it in Monmouth in May?

Daytime temperatures usually reach 61°F in Monmouth in May, falling to 45°F at night.

How sunny is it in Monmouth in May?

There are normally 6 hours of bright sunshine each day in Monmouth in May - that's 41% of daylight hours.

How warm is the sea around Monmouth in May?

The average sea temperature around Monmouth in May is 54°F.

Does it rain in Monmouth in May?

There are usually 15 days with some rain in Monmouth in May and the average monthly rainfall is 2.6 inches.

Monmouth May sunrise & sunset times

Browse the sunrise and sunset times for Monmouth in May 2026. Select a month to view Monmouth sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:42 19:35
Saturday, 16th May 2026 04:16 19:59
Sunday, 31st May 2026 03:59 20:19

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^