Weather in Southampton in May 2025
- May is usually the driest month of the year in Southampton
Average weather
Average temperature in Southampton in May
The temperature in May is +18°C on average, with a range between a maximum of +22°C during the day and a minimum of +5°C at night.
The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +18°C to +20°C.
Is Southampton warm or cold in May?
Southampton is typically mild in May.
Maximum temperatures go up compared to the previous month from +13°C to +16°C. The minimum temperature also goes up from +5°C to +9°C.
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
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +13°C | +16°C | +19°C | ||||
| Min. temperature | ||||||
| -3°C | 0°C | +4°C | ||||
| Max. temperature | ||||||
| +24°C | +27°C | +30°C | ||||
| Rainfall | ||||||
| 57 mm | 62 mm | 56 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 78% | 77% | 78% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 4 | 4 | 4 | ||||
| Cloudy days | ||||||
| 9 | 10 | 9 | ||||
| Rainy days | ||||||
| 16 | 17 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +13°C to +16°C 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
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
How was the weather last May in Southampton?
Climate Change over Years
The climate in Southampton in May has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+12°C) and the highest in 2022 (+16°C). The driest year was 1990 with only 529 mm of rainfall, and the wettest year was 2020 with 1617 mm.
FAQ
Is May a good time to visit Southampton?
Can you sunbathe in Southampton in May?
Is Southampton rainy in May?
Is it sunny in Southampton in May?
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, 2023.
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.