Port St Johns weather in May 2025

Expect 73°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Port St Johns in May. Check more long-term weather averages for Port St Johns in May before you book your next holiday to South Africa in 2025/2026.

  • 73°F maximum daytime temperature in May in Port St Johns73
    73°F 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
  • 59°F minimum night-time temperature in May in Port St Johns59
    59°F 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
  • 2.3 inches monthly rainfall in May in Port St Johns2.3
    2.3 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Port St Johns4
    4 (Moderate) UV index
  • 73°F sea temperature in May in Port St Johns73
    73°F sea temperature

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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)  |  Imperial (°F)

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More about South Africa

How hot is it in Port St Johns in May?

Daytime temperatures usually reach 73°F in Port St Johns in May, falling to 59°F 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 73°F.

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 2.3 inches.

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

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