Southend-on-Sea weather and climate in 2025
Day
22 °C
Night
13 °C
Sea
18 °C
Precipitation
53 mm
in month
Rainy days
9 days
in month
Daylight
14 hours
average
Sunshine
6 hours
average
Humidity
80 %
Day
22 °C
Night
13 °C
Sea
18 °C
Precipitation
53 mm
in month
Rainy days
9 days
in month
Daylight
14 hours
average
Sunshine
6 hours
average
Humidity
80 %
Overview: Southend-on-Sea
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Weather overview for Southend-on-Sea
Weather overview
Embracing the temperate maritime climate, Southend-on-Sea experiences mild fluctuations in its weather patterns throughout the year. The town is caressed by the North Sea, with the water temperatures reaching their pinnacle in August at 18 °C (64 °F). The daytime temperatures peak in July, averaging at 22 °C (72 °F), while the chillier winter nights of February have the mercury dipping to 2 °C (36 °F). Rainfall is fairly consistent, most abundant in October, and the wind often sweeps through the esplanade, shaping the coastal ambiance.
January weather
January greets Southend-on-Sea with a crisp air, with average daytime temperatures barely crawling to 8 °C (46 °F). The nights can feel bitingly cold, averaging at 2 °C (36 °F), urging residents to wrap up in their warmest layers. The North Sea is unwelcoming for swimmers, registering temperatures at a chilling 8 °C (46 °F).
February weather
As February unfolds, the temperatures in Southend-on-Sea remain chilly with a daytime average of 8 °C (46 °F). The winds gently subside, but the nights are still cold, averaging 2 °C (36 °F), ensuring that warm pyjamas are a must. Sea temperatures stay frigid at 6 °C (44 °F), deterring all but the bravest of winter swimmers.
March weather
March marks the beginning of spring in Southend-on-Sea, with daylight temperatures showing a gentle increase to 11 °C (51 °F). The nights, averaging 4 °C (38 °F), are less harsh. Wet days are not uncommon, so a waterproof jacket continues to be an essential item. The sea temperature inches up slightly to 7 °C (44 °F).
April weather
April sees further warming in Southend-on-Sea with average daytime temperatures of 13 °C (55 °F). The evenings, now at 5 °C (41 °F), are noticeably milder. The North Sea slowly warms to 9 °C (48 °F). Rain persists through the month, warranting a sturdy umbrella on hand.
May weather
The merry month of May brightens Southend-on-Sea with daytime temperatures averaging 16 °C (62 °F), and evenings warming to a cozy 8 °C (46 °F). The North Sea's temperature also climbs to 11 °C (52 °F). Pleasant weather stimulates an increase in outdoor pursuits, though an occasional shower may still occur.
June weather
June's sun beams on Southend-on-Sea with increased vigor, pushing daytime temperatures to an average high of 20 °C (67 °F). The nights become balmy at an average of 11 °C (52 °F). With the sea reaching 14 °C (57 °F), locals begin to flock to the beaches. Rainstill sprinkles across the month, maintaining lush greenery.
July weather
The zenith of summer, July in Southend-on-Sea, brings the highest temperatures of the year, peaking at an average of 22 °C (72 °F) during the day. The North Sea invites with its warmest waters at 16 °C (61 °F), while the evenings remain comfortable at 13 °C (56 °F).
August weather
As August rolls in, Southend-on-Sea sustains its summery warmth with daytime temperatures steadying at 22 °C (72 °F). The sea achieves its highest annual temperature at 18 °C (64 °F), and nights are temperate at 13 °C (56 °F). Even though rain is not frequent, it's still a possibility.
September weather
September sees a gradual cooling in Southend-on-Sea, with daytime highs dipping to 19 °C (67 °F). The nights become crisper at 11 °C (52 °F), and the North Sea starts to lose its summertime warmth, now at 17 °C (62 °F). While the weather remains largely fair, there's an uptick in rainy days.
October weather
Autumn's touch is felt in Southend-on-Sea during October, where the average daytime temperature settles at 15 °C (59 °F). Chilly nights average 8 °C (47 °F) and sea temperatures start to cool significantly, noted at 15 °C (59 °F). October sees the highest rainfall of the year, so waterproof attire is essential.
November weather
November's crisp air brings daytime temperatures down to 11 °C (51 °F) in Southend-on-Sea. The nights draw in colder at 5 °C (41 °F), as the sea temperature continues its decline to 12 °C (54 °F). Rain and overcast skies are common, suggesting indoor activities might be more appealing.
December weather
December's winter chill descends upon Southend-on-Sea, with average daytime temperatures dropping to 8 °C (46 °F). Nights are chilly, dipping to an average of 3 °C (37 °F). The holiday season casts a festive glow despite the cold, and the sea temperature slides to 9 °C (49 °F).
FAQs
How many layers should I wear in Southend-on-Sea during January?
With January averaging day temperatures of 8 °C (46 °F) and night temperatures dropping to 2 °C (36 °F), you should dress in multiple layers, including a warm coat, hat, gloves, and a scarf to stay comfortably insulated.
Is February much warmer than January in Southend-on-Sea?
February is still brisk in Southend-on-Sea with similar temperatures to January, offering little respite from the cold with average daytime temperatures of 8 °C (46 °F).
How does the weather change in Southend-on-Sea during March?
March in Southend-on-Sea brings a slight increase in warmth with daytime temperatures climbing to 11 °C (51 °F) and nighttime averages at 4 °C (38 °F). Layers can be peeled back, but a spring jacket is still recommended.
What kind of temperatures can I expect in Southend-on-Sea during April?
April offers a more comfortable climate in Southend-on-Sea, with daily highs averaging 13 °C (55 °F) and nightly lows at 5 °C (41 °F), making it ideal for outdoor activities such as walks along the pier.
Is May warm enough for outdoor activities in Southend-on-Sea?
Absolutely, May's average daily temperature of 16 °C (62 °F) coupled with warmer nights at 8 °C (46 °F) provide an excellent climate for enjoying the outdoors in Southend-on-Sea.
How do the temperatures trend in Southend-on-Sea in June?
June in Southend-on-Sea is warm and inviting, with temperatures climbing to an enjoyable daytime average of 20 °C (67 °F), while nighttime temperatures are pleasant at 11 °C (52 °F).
How hot does it get in Southend-on-Sea in July?
July is the warmest month in Southend-on-Sea, with delightful daytime temperatures reaching an average peak of 22 °C (72 °F), making it perfect for beach-goers and sun-seekers alike.
What is the typical weather like in Southend-on-Sea during August?
August in Southend-on-Sea offers consistent summer weather with warm days averaging 22 °C (72 °F), while evenings stay mild, making it a popular time for outdoor dining and strolls on the promenade.
Is September still a good month for outdoor activities in Southend-on-Sea?
September still basks in warm weather, with average daytime temperatures of 19 °C (67 °F), providing ample opportunity for outdoor pursuits in Southend-on-Sea.
Should I expect many rainy days in Southend-on-Sea during October?
October is the wettest month in Southend-on-Sea, with around 11 likely to be rainy and an expected total rainfall of 60 mm (2.34 in).
Is November very wet in Southend-on-Sea?
November can be quite damp in Southend-on-Sea with an average of 12 experiencing rain and typical total precipitation of 55 mm (2.15 in).
How does Southend-on-Sea feel in December?
December has a distinct winter chill with daytime temperatures hovering around 8 °C (46 °F); layers, a warm coat, and hot drinks are the order of the season in Southend-on-Sea.
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