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Southampton in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Southampton in May will be like? Take a look at our weather guide for Southampton, based on historical data.
Check flight prices to Southampton on Avionero:
May

Weather in Southampton in May 2025

OK Weather
Mild
🌧️
Rainy
Southampton in May usually sees fair weather conditions, with an average daily high temperature of +61°F and roughly 4 sunny days. However, you should prepare for about 17 rainy days with an average precipitation of 62 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • May is usually the driest month of the year in Southampton

Average weather

☀️
+61°F
Avg. max. temperature
+32°F
Min.
+81°F
Max.
62 mm
Total precipitation
77%
Avg. humidity
4 m/s
Avg. wind
4 ☀️
Sunny Days
10 ⛅️
Cloudy
17 🌦
Rainy
Our opinion: Southampton has OK weather in May.

Average temperature in Southampton in May

Here are the expected maximum, average and minimum temperatures in Southampton for May based on the historical data.
Last Year
Historical Data

The temperature in May is +64°F on average, with a range between a maximum of +72°F during the day and a minimum of +41°F at night.

The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +64°F to +68°F.

Is Southampton warm or cold in May?

Southampton is typically mild in May.

Maximum temperatures go up compared to the previous month from +55°F to +61°F. The minimum temperature also goes up from +41°F to +48°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Southampton:

Climate in Southampton in May

Southampton weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+55°F+61°F+66°F
Min. temperature
+27°F+32°F+39°F
Max. temperature
+75°F+81°F+86°F
Rainfall
57 mm62 mm56 mm
Wind
4 m/s4 m/s4 m/s
Humidity
78%77%78%
Air pressure
1014 HPa1015 HPa1016 HPa
Sunny days
444
Cloudy days
9109
Rainy days
161716
Snowy days
000

May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +55°F to +61°F during the day. Prepare for more rain. Average rainfall goes from 57 mm to 62 mm. It feels drier, as humidity decreases from 78% to 77%. The average wind speed doesn’t change much during May, staying around 4 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.

June brings much the same weather, it remains ok.

Wind

Wind speed in Southampton in May based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Southampton is gradually increasing during May, going from 2 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Southampton based on historical data.
Last Year
Historical Data
Typically, there is a 39% chance of rain on an average day in May, with total rainfall of approximately 69 mm. The maximum amount of rainfall per day is around 17 mm, which is considered light rain. May is a pretty wet month with over 12 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Southampton wettest month is October, where a typical day has a 55% chance of precipitation and 87 mm of rainfall per day. February, on the other hand, is the driest month with a mere 48% chance of precipitation and 53 mm of rainfall per day.

How was the weather last May in Southampton?

This is the weather in Southampton in May 2023:
1 May
☁️
+64°F
2 May
☁️
+61°F
3 May
☀️
+62°F
4 May
☁️
+64°F
5 May
☁️
+63°F
6 May
☁️
+57°F
7 May
☁️
+67°F
8 May
☁️
+57°F
9 May
🌧️
+65°F
10 May
☁️
+63°F
11 May
🌧️
+63°F
12 May
☁️
+60°F
13 May
☀️
+64°F
14 May
☀️
+68°F
15 May
☀️
+60°F
16 May
☀️
+62°F
17 May
☀️
+63°F
18 May
🌧️
+64°F
19 May
☀️
+66°F
20 May
☀️
+66°F
21 May
☀️
+67°F
22 May
☀️
+69°F
23 May
☀️
+66°F
24 May
☀️
+70°F
25 May
☀️
+68°F
26 May
☀️
+67°F
27 May
☀️
+69°F
28 May
☀️
+71°F
29 May
☀️
+67°F
30 May
☀️
+69°F
31 May
☀️
+69°F
In May 2023 Southampton had 19 sunny days, 9 cloudy days, and 3 rainy days. The average maximum temperature was +64°F, with an absolute maximum of +72°F and a minimum of +57°F. The average humidity was 77%, with a maximum of 100% and a minimum of 41%. The average wind speed was 2 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change Over the Years

This is how Southampton climate has changed over the last 43 years.

The climate in Southampton in May has not changed that much over the last 43 years.

The average temperature was the lowest in 1979 (+54°F) and the highest in 2022 (+60°F). The driest year was 1990 with only 529 mm of rainfall, and the wettest year was 2020 with 1617 mm.

FAQ

Frequently asked questions about the weather in Southampton in May:

Is May a good time to visit Southampton?

It’s always a good time to visit Southampton, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Southampton in May?

May has mild temperatures in Southampton. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Southampton rainy in May?

Southampton is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Southampton in May?

Usually, it’s not very sunny in Southampton in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in United Kingdom

Check out the weather for other cities in United Kingdom.

Monthly weather in Southampton

Source of the data

For this page, we’ve looked at the typical weather in Southampton, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.