Monmouth weather in July 2026

Expect daytime maximum temperatures of 21°C in Monmouth, Wales in July based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 48 mm of rainfall in the month.

  • 21°C maximum daytime temperature in July in Monmouth21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in July in Monmouth12
    12 days with some rainfall
  • 11°C minimum night-time temperature in July in Monmouth11
    11°C min night temperature
  • 16 hours of daylight per day in July in Monmouth16
    16 hours of daylight per day
  • No heat & humidity in July in Monmouth0
    No heat & humidity
  • 48 mm monthly rainfall in July in Monmouth48
    48 mm of monthly rainfall
  • UV (maximum) index 6 (High) in July in Monmouth6
    6 (High) UV index

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The July 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 / mm)  |  Imperial (°F / inches)

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More about Wales

How hot is it in Monmouth in July?

Daytime temperatures usually reach 20°C in Monmouth in July, falling to 12°C at night.

How sunny is it in Monmouth in July?

There are normally 6 hours of bright sunshine each day in Monmouth in July - that's 39% of daylight hours.

How warm is the sea around Monmouth in July?

The average sea temperature around Monmouth in July is 17°C.

Does it rain in Monmouth in July?

There are usually 13 days with some rain in Monmouth in July and the average monthly rainfall is 66mm.

Monmouth July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st July 2026 03:56 20:33
Thursday, 16th July 2026 04:11 20:22
Friday, 31st July 2026 04:32 20:02

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