Southend-on-Sea weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: May – September
What is the weather like in Southend-on-Sea in July?
In July, Southend-on-Sea is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 59 mm in total. All in all, July is a good month for a holiday in Southend-on-Sea.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 16 h 13 min04:56 – 21:10
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %47 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Southend-on-Sea in July: quick answers
Is Southend-on-Sea hot in July?
No. In July, Southend-on-Sea is mild: daytime highs average 21 °C and nights drop to about 14 °C.
Can you swim in Southend-on-Sea in July?
Only if you don't mind cold water: in July the sea averages just 17.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Southend-on-Sea in July?
Rain is frequent, with about 11 rainy days and 59 mm in total.
Southend-on-Sea month by month
The whole year in Southend-on-SeaAll destinations: United KingdomWhere to go in JulySea temperature in July
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences