Port St Johns weather in May 2025

Expect daytime maximum temperatures of 23°C in Port St Johns, South Africa in May based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 58 mm of rainfall in the month.

  • 23°C maximum daytime temperature in May in Port St Johns23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in May in Port St Johns6
    6 days with some rainfall
  • 15°C minimum night-time temperature in May in Port St Johns15
    15°C min night temperature
  • 11 hours of daylight per day in May in Port St Johns11
    11 hours of daylight per day
  • No heat & humidity in May in Port St Johns0
    No heat & humidity
  • 58 mm monthly rainfall in May in Port St Johns58
    58 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Port St Johns4
    4 (Moderate) UV index
  • 23°C sea temperature in May in Port St Johns23
    23°C sea temperature

More about Port St Johns

Port St Johns by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for South Africa

Avis sale: up to 10% off car hire

  • Save up to 10% on car hire for select destinations
  • Book car hire in Europe, Australia, New Zealand & more
  • Travel: 1 Mar-14 Dec 2025. Black out periods apply
Go to Avis deal >>

Expires at 23:59 on Tuesday 18th Mar 2025 · View all Avis offers

AvisCar hire finder

The May weather guide for South Africa (Port St Johns) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about South Africa

How hot is it in Port St Johns in May?

Daytime temperatures usually reach 23°C in Port St Johns in May, falling to 15°C at night.

How sunny is it in Port St Johns in May?

There are normally 7 hours of bright sunshine each day in Port St Johns in May - that's 67% of daylight hours.

How warm is the sea around Port St Johns in May?

The average sea temperature around Port St Johns in May is 23°C.

Does it rain in Port St Johns in May?

There are usually 6 days with some rain in Port St Johns in May and the average monthly rainfall is 58mm.

Port St Johns May sunrise & sunset times

Browse the sunrise and sunset times for Port St Johns in May 2025. Select a month to view Port St Johns sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:33 17:24
Friday, 16th May 2025 06:43 17:13
Saturday, 31st May 2025 06:53 17:06

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^