Western Cape · South Africa
Knysna in May
In May, Knysna averages a daytime high of 21 °C and a night-time low of 13 °C, with about 60 mm of rain over the month. By the measure used here it is one of the most comfortable months to visit; they run September and December to July.
- Average high
- 21 °C
- Average low
- 13 °C
- Rain in the month
- 60 mm
- Daylight on 15 May
- 10 h 20 min
- Comfortable month
- Yes
- Places to stay
- 80
When to go
How May compares with the rest of the year in Knysna
May is tied for the 6th warmest month in Knysna by average daytime high; across the year the highs run from 19 °C to 25 °C and the lows from 10 °C to 17 °C. By day, May is 1 °C cooler than April, and June is 2 °C cooler than May.
May brings 60 mm of rain, less than the monthly average of 72 mm (860 mm a year); it is the 11th wettest month.
On 15 May the sun is up for about 10 h 20 min, against 9 h 50 min at the shortest and 14 h 20 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 24 °C | 17 °C | 69 mm | Yes |
| February | 25 °C | 17 °C | 61 mm | Yes |
| March | 24 °C | 16 °C | 74 mm | Yes |
| April | 23 °C | 14 °C | 65 mm | Yes |
| May | 21 °C | 13 °C | 60 mm | Yes |
| June | 20 °C | 11 °C | 59 mm | Yes |
| July | 19 °C | 10 °C | 71 mm | Yes |
| August | 19 °C | 10 °C | 84 mm | |
| September | 19 °C | 11 °C | 72 mm | Yes |
| October | 21 °C | 13 °C | 91 mm | |
| November | 21 °C | 14 °C | 82 mm | |
| December | 23 °C | 15 °C | 72 mm | Yes |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is May a good time to visit Knysna?
Yes, by the measure used here: in May the average high of 21 °C is between 18 °C and 29 °C and the 60 mm of rain is under 80 mm. The comfortable months in Knysna are September and December to July.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in South Africa in May
Nationwide public holidays; shops and offices may close on these dates.
When to go
Destinations near Knysna that are comfortable in May
Within 300 km, nearest first, by the same measure.
Where to stay
Where to stay in Knysna
This guide lists 80 places to stay in Knysna, hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 10; 1–3 km, 28; 3–10 km, 33; 10 km or more, 9.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from the OpenHolidays API (ODbL); places to stay from each operator's own public pages and Wikidata. How this guide is made.