Weather in Swansea in July

A good month. July works. It is not the peak, but nothing about it fights you. You should expect rain on 15 days of the month, which is more days wet than dry.

July is the highest-scoring month of the twelve. The nearest rival is September, and the month at the other end of the year is January.

This is persistent light rain rather than storms: 15 wet days but only 2 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average July reaches 30 °C; the day barely swings — 5.1 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest July day reached 27.6 °C and the coldest night fell to 10.3 °C, and the wettest single day dropped 31 mm — roughly 36% of the month's rain in one day.

July is moderately variable: 36 mm in the driest year against 185 mm in the wettest, around an average of 87 mm. Roughly two Julys in three land near that average, and the third does something else entirely.

Wind is light at 13.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 84%, high enough to notice on the warm days without dominating them.

How July sits in the year

Temperatures hold steady either side: 17.4 °C in June, 19 here, 19 in August. Nothing about the timing within the month matters much.

Daylight in July

July is at or near the longest days of Swansea's year: 16.2 hours of daylight, losing 1 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

An inland climate

Despite being inland, the year stays fairly even: 14.8 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Swansea versus nearby

If Swansea is one option among several, the nearby comparison is worth making. Birmingham is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Manchester is close enough to be a coin toss — within a degree on temperature, 3 days more rain.

So: July is the answer for Swansea. If it is booked out or priced out, September is the next best thing at 1 points behind, and January is the month to keep off the shortlist.

Every month in Swansea

See all twelve months in Swansea, or where else to go in July.