Climate averages 1991–2020
Atlantis weather
in May.
A mild, moderately wet month: the 8th warmest and the 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Atlantis: daytime highs average 19.4°C and nights cool to about 10.3°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 47 mm of rain on roughly 7 days, which makes May a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 25 min on an average May day.
The nearest other city in this atlas is Cape Town (40 km away). In May its highs average 19.3°C, about as warm as Atlantis, with 67 mm of rain.
Among the 95 cities listed in South Africa, Atlantis ranks joint 80th of 95 for the warmest May highs and 90th of 95 for the driest May (rainfall, lowest first). The mean May high of those 95 cities is 21.0°C; Atlantis is 1.6°C cooler than that mean.
From May to June, average highs fall by 2.9°C to 16.5°C, and monthly rainfall rises from 47 mm to 76 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Atlantis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.9°C16.1°C | 16.1°C | 9.8 | 2.2 | 14.114 h |
| February | 27.1°C16.3°C | 16.3°C | 9.8 | 1.9 | 13.313 h |
| March | 25.6°C15.0°C | 15.0°C | 11 | 2.2 | 12.312 h |
| April | 22.6°C12.5°C | 12.5°C | 31 | 4.2 | 11.311 h |
| May, selected | 19.4°C10.3°C | 10.3°C | 47 | 6.5 | 10.410 h |
| June | 16.5°C7.9°C | 7.9°C | 76 | 9.4 | 10.010 h |
| July | 16.1°C7.1°C | 7.1°C | 69 | 8.2 | 10.210 h |
| August | 16.2°C7.5°C | 7.5°C | 59 | 8.4 | 10.911 h |
| September | 17.9°C9.0°C | 9.0°C | 36 | 6.3 | 11.912 h |
| October | 21.0°C11.2°C | 11.2°C | 23 | 4.1 | 12.913 h |
| November | 23.0°C12.8°C | 12.8°C | 21 | 4.0 | 13.814 h |
| December | 25.4°C14.9°C | 14.9°C | 12 | 2.9 | 14.314 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Cape Town in MaySouth Africa · 40 kmHigh 19.3°C · Low 12.1°C · 67 mm rain
- Paarl in MaySouth Africa · 49 kmHigh 21.4°C · Low 11.1°C · 98 mm rain
- Stellenbosch in MaySouth Africa · 54 kmHigh 20.6°C · Low 11.4°C · 90 mm rain
- Somerset West in MaySouth Africa · 65 kmHigh 20.4°C · Low 13.2°C · 90 mm rain
- Worcester, South Africa in MaySouth Africa · 90 kmHigh 21.3°C · Low 12.2°C · 39 mm rain
- Oudtshoorn in MaySouth Africa · 344 kmHigh 22.2°C · Low 9.1°C · 25 mm rain
- Mossel Bay in MaySouth Africa · 345 kmHigh 20.8°C · Low 12.8°C · 40 mm rain
- George in MaySouth Africa · 370 kmHigh 19.5°C · Low 11.8°C · 45 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Atlantis) is explained once on the Atlantis year overview and on the Sources, method and limits page.