14 day weather forecast

Southend-on-Sea weather August 2026 — 14 day forecast · United Kingdom

18°

light drizzle · feels like 17°

Updated at
  • Live from Open-Meteo
  • Refreshed several times a day
  • 14 days ahead
  • No tracking · free
Warmest day
Thursday 3 Sept
23°C
highest maximum
Wettest day
Monday 7 Sept
8.4 mm
19% chance
Most sunshine
Sunday 6 Sept
12.8 hours
of sunshine
Trend
14 days
Unsettled
7 days with rain

The next 14 days

swipe →
Avg max, 3 days
21.7°C
Coldest night
11°C
Most sunshine
12.8 h
Wind from
the west

Overview table · August 2026

Southend-on-Sea 14 day forecast, day by day

The table below shows the full 14 day weather forecast for Southend-on-Sea (United Kingdom): the maximum and minimum temperature, rainfall in millimetres, the chance of rain, humidity, hours of sunshine and the UV index per day. Across the next two weeks the maximum temperature in Southend-on-Sea averages around 22°C and the minimum around 15°C, with roughly 29 mm of rain in total, 7 dry days and about 127 hours of sunshine.

Last updated:

14 day weather forecast for Southend-on-Sea (United Kingdom) per day: temperature, rainfall, chance of rain, humidity, sunshine hours and UV index. Updated in August 2026.
DayWeatherMaxMinRainChanceHumiditySunUV
Saturday29 AugShowers21°C18°C4.9 mm100%84%2 h2low
Sunday30 AugLight rain22°C17°C0.6 mm59%71%9.1 h3moderate
Monday31 AugShowers22°C15°C3.4 mm75%66%11.9 h4moderate
Tuesday1 SeptCloudy22°C14°C0 mm31%62%10.9 h5moderate
Wednesday2 SeptLight rain21°C14°C2.6 mm35%77%8.5 h5moderate
Thursday3 SeptLight rain23°C16°C1.3 mm13%79%12.7 h4moderate
Friday4 SeptMostly sunny23°C18°C0 mm33%71%11.3 h4moderate
Saturday5 SeptLight rain18°C14°C6 mm25%89%0 h3moderate
Sunday6 SeptCloudy21°C11°C0 mm24%74%12.8 h5moderate
Monday7 SeptLight rain23°C15°C8.4 mm19%83%6.4 h4moderate
Tuesday8 SeptCloudy21°C18°C0 mm22%72%12.4 h5moderate
Wednesday9 SeptCloudy22°C17°C0 mm16%78%4.8 h4moderate
Thursday10 SeptLight rain22°C15°C0.6 mm14%74%12.2 h4moderate
Friday11 SeptLight rain21°C13°C1.2 mm24%72%12.2 h5moderate

The first three to five days of the forecast for Southend-on-Sea are the most reliable; from day seven onwards it is an indicative trend. Click a day in the overview above for hourly detail. Source: Open-Meteo (Met Office, DWD, ECMWF).

Background & outlook

The weather in Southend-on-Sea

Current conditions and the 14 day forecast

Southend-on-Sea lies in England, an area with a maritime climate: mild winters, cool summers, changeable skies and rain spread across the whole year. That is exactly why a two-week outlook is useful here — it shows the pattern rather than one snapshot.

What is the weather like in Southend-on-Sea right now?

It is currently 18°C in Southend-on-Sea with light drizzle. It feels like 17°C, humidity is 92% and the wind is SSE 18 km/h.

Today (Saturday) reaches a maximum of 21°C and a minimum of 18°C, with 4.9 mm of rain and 2 hours of sunshine. Sunrise is at 06:05 and sunset at 19:50.

Southend-on-Sea weather tomorrow

Tomorrow (Sunday) the maximum temperature in Southend-on-Sea is 22°C and the minimum 17°C. Around 0.6 mm of rain is expected with 9.1 hours of sunshine, and the chance of rain is 59%. The data is refreshed several times a day through Open-Meteo.

Southend-on-Sea weather this week and next week

Over the coming week the average maximum temperature in Southend-on-Sea sits around 22°C and the average minimum around 16°C. Roughly 12.8 mm of rain is expected, spread across 4 days, with 1 largely sunny day.

The warmest day in the 14 day forecast for Southend-on-Sea is Thursday 3 Sept at 23°C. The coldest night falls on Sunday 6 Sept at 11°C. Click any day for hourly detail.

Rain, sunshine and UV in Southend-on-Sea

A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Southend-on-Sea is 5, which is low to moderate.

How reliable is a 14 day forecast?

The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.

Forecast for Southend-on-Sea last updated: 29 August 2026 at 14:25. See also all United Kingdom forecasts and the European weather map.

Frequently asked questions

Questions about the weather in Southend-on-Sea

What is the weather like in Southend-on-Sea in August 2026?

The forecast at the top of this page shows the current temperature in Southend-on-Sea plus the maximum and minimum for each of the next 14 days, with rainfall, chance of rain, sunshine hours and UV index. It is refreshed several times a day.

How accurate is the 14 day forecast for Southend-on-Sea?

The first three to five days for Southend-on-Sea are highly reliable. From day six onwards, read the forecast as a trend: it shows whether it turns warmer, cooler, wetter or drier rather than an exact value for that day.

Will it rain in Southend-on-Sea this week?

The rainfall chart on this page gives the expected millimetres per day for Southend-on-Sea, and each day card shows the chance of rain as a percentage. Below 20% with several hours of sunshine is a genuinely dry day.

How warm does it get in Southend-on-Sea over the next two weeks?

The temperature chart shows the maximum and minimum for every one of the next 14 days in Southend-on-Sea. The overview table underneath repeats the same figures day by day, together with the average across the fortnight.

Can I see the weather in Southend-on-Sea hour by hour?

Yes. The hourly chart covers the next 48 hours in Southend-on-Sea with temperature, feels-like temperature and chance of rain. Clicking any of the 14 days opens a panel with night, morning, afternoon and evening detail.

Where does the Southend-on-Sea forecast come from?

The data for Southend-on-Sea (England, United Kingdom) comes from Open-Meteo, which combines national weather models such as those of the Met Office, DWD, Météo-France and ECMWF and recomputes them several times a day.

What does the UV index for Southend-on-Sea mean?

The UV index runs from 0 to 11+. Up to 2 is low, 3 to 5 moderate, 6 to 7 high and 8 or more very high. From 6 upwards it is worth using sun protection in the middle of the day, even when it does not feel especially hot.

Is the Southend-on-Sea weather forecast free?

Yes. The full 14 day forecast for Southend-on-Sea is free, needs no account and carries no adverts inside the charts.