Knysna (Tnk) Weather Records (SF000140630)

Record envelope, standing records and threshold days for Knysna (Tnk) (SF000140630), South Africa, with 118 years of record.

Key Facts for Knysna (Tnk)

Knysna (Tnk) (SF000140630) is a weather station in South Africa at -34.05 latitude and 23.05 longitude, 15 m (49 ft) above sea level.
The station reports from 1880 to 1997, 118 years of record.
0 records set at Knysna (Tnk) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Knysna (Tnk) set a daily record precipitation of 32.2 mm (1.3 in) on 25 October 1997.

About the Station

Location: South Africa, -34.05 latitude, 23.05 longitude.
Elevation: 15 m (49 ft).
Period of record: 1880 to 1997, 118 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Knysna (Tnk). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Knysna (Tnk), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Knysna (Tnk) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Knysna (Tnk) between 4 May 1916 and 4 May 1916. Each dot is a new record.

Wettest Day of Each Month

May: 208.3 mm (8.2 in)

The wettest day on record for each calendar month at Knysna (Tnk). The most was 208.3 mm (8.2 in) on 4 May 1916.

Record daily precipitation for each month at Knysna (Tnk)
Month	Record daily precipitation (mm)	Date
Jan	63.0 mm (2.5 in)	3 January 1986
Feb	77.0 mm (3.0 in)	21 February 1955
Mar	90.5 mm (3.6 in)	7 March 1963
Apr	82.0 mm (3.2 in)	26 April 1981
May	208.3 mm (8.2 in)	4 May 1916
Jun	117.6 mm (4.6 in)	2 June 1951
Jul	118.1 mm (4.6 in)	24 July 1951
Aug	189.2 mm (7.4 in)	1 August 1951
Sep	163.5 mm (6.4 in)	23 September 1993
Oct	96.3 mm (3.8 in)	15 October 1992
Nov	124.0 mm (4.9 in)	5 November 1954
Dec	72.0 mm (2.8 in)	6 December 1970

Latest Records

Latest records at Knysna (Tnk)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 October 1997	Knysna (Tnk), ZA	daily rain	32.2 mm (1.3 in)	5.0 mm (0.20 in)	92 years	41 of 100 (Notable)
11 July 1995	Knysna (Tnk), ZA	daily rain	24.4 mm (1.0 in)	8.4 mm (0.33 in)	9 years	18 of 100 (Routine)
19 April 1995	Knysna (Tnk), ZA	daily rain	27.4 mm (1.1 in)	0.7 mm (0.03 in)	64 years	29 of 100 (Routine)
8 April 1995	Knysna (Tnk), ZA	daily rain	19.7 mm (0.8 in)	0.9 mm (0.04 in)	98 years	20 of 100 (Routine)
26 March 1995	Knysna (Tnk), ZA	daily rain	29.0 mm (1.1 in)	6.1 mm (0.24 in)	102 years	46 of 100 (Notable)
16 January 1995	Knysna (Tnk), ZA	daily rain (Tie)	16.5 mm (0.6 in)	tie	76 years	8 of 100 (Routine)
23 December 1994	Knysna (Tnk), ZA	daily rain	41.3 mm (1.6 in)	12.3 mm (0.5 in)	9 years	24 of 100 (Routine)
9 December 1994	Knysna (Tnk), ZA	daily rain	22.9 mm (0.9 in)	5.1 mm (0.20 in)	103 years	20 of 100 (Routine)
2 August 1994	Knysna (Tnk), ZA	daily rain	30.0 mm (1.2 in)	6.5 mm (0.26 in)	36 years	25 of 100 (Routine)
21 May 1994	Knysna (Tnk), ZA	daily rain	17.9 mm (0.7 in)	7.4 mm (0.29 in)	39 years	20 of 100 (Routine)
21 April 1994	Knysna (Tnk), ZA	daily rain	53.4 mm (2.1 in)	27.0 mm (1.1 in)	106 years	64 of 100 (Major)
1 December 1993	Knysna (Tnk), ZA	daily rain	59.6 mm (2.3 in)	11.3 mm (0.4 in)	103 years	52 of 100 (Notable)
10 November 1993	Knysna (Tnk), ZA	daily rain	40.7 mm (1.6 in)	2.6 mm (0.10 in)	76 years	35 of 100 (Notable)
23 September 1993	Knysna (Tnk), ZA	monthly rain	163.5 mm (6.4 in)	51.5 mm (2.0 in)	88 years	85 of 100 (Exceptional)
11 November 1992	Knysna (Tnk), ZA	daily rain	58.2 mm (2.3 in)	22.6 mm (0.9 in)	71 years	51 of 100 (Notable)
15 October 1992	Knysna (Tnk), ZA	monthly rain	96.3 mm (3.8 in)	15.3 mm (0.6 in)	13 years	38 of 100 (Notable)
8 August 1992	Knysna (Tnk), ZA	daily rain	58.5 mm (2.3 in)	27.5 mm (1.1 in)	24 years	36 of 100 (Notable)
7 August 1992	Knysna (Tnk), ZA	daily rain	95.8 mm (3.8 in)	68.6 mm (2.7 in)	64 years	69 of 100 (Major)
22 July 1992	Knysna (Tnk), ZA	daily rain	87.7 mm (3.5 in)	68.2 mm (2.7 in)	17 years	55 of 100 (Notable)
12 February 1992	Knysna (Tnk), ZA	daily rain	46.3 mm (1.8 in)	25.3 mm (1.0 in)	32 years	47 of 100 (Notable)

Extremes by Year

1880 to 1997

Yearly extremes at Knysna (Tnk): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	208.3 mm (8.2 in)	1916	54.4 mm (2.1 in)	100
Wettest five days (Rx5day)	272.1 mm (10.7 in)	1916	86.9 mm (3.4 in)	100
Longest dry spell (CDD)	43 days	1899	20 days	100

Wettest day (Rx1day)

The wettest day of the year at Knysna (Tnk), 1880 to 1997. The record is 208.3 mm (8.2 in) in 1916, marked on the chart; the median year is 54.4 mm (2.1 in).

Wettest day (Rx1day) at Knysna (Tnk) by year
Year	Wettest day (Rx1day)
1880	43.2 mm (1.7 in)
1882	38.1 mm (1.5 in)
1883	50.8 mm (2.0 in)
1884	54.4 mm (2.1 in)
1885	53.3 mm (2.1 in)
1886	54.6 mm (2.1 in)
1887	58.4 mm (2.3 in)
1888	83.8 mm (3.3 in)
1889	48.3 mm (1.9 in)
1890	47.0 mm (1.9 in)
1891	92.7 mm (3.6 in)
1892	42.2 mm (1.7 in)
1893	38.1 mm (1.5 in)
1894	70.1 mm (2.8 in)
1895	25.1 mm (1.0 in)
1896	78.5 mm (3.1 in)
1897	43.9 mm (1.7 in)
1898	83.8 mm (3.3 in)
1899	49.5 mm (1.9 in)
1900	54.6 mm (2.1 in)
1901	54.4 mm (2.1 in)
1902	71.9 mm (2.8 in)
1903	49.3 mm (1.9 in)
1904	82.8 mm (3.3 in)
1905	112.0 mm (4.4 in)
1906	62.7 mm (2.5 in)
1907	38.9 mm (1.5 in)
1908	33.0 mm (1.3 in)
1909	71.1 mm (2.8 in)
1910	43.2 mm (1.7 in)
1912	38.9 mm (1.5 in)
1913	81.3 mm (3.2 in)
1914	60.7 mm (2.4 in)
1915	23.1 mm (0.9 in)
1916	208.3 mm (8.2 in)
1917	73.7 mm (2.9 in)
1918	88.9 mm (3.5 in)
1919	25.1 mm (1.0 in)
1920	50.8 mm (2.0 in)
1921	36.8 mm (1.4 in)
1922	47.0 mm (1.9 in)
1923	47.0 mm (1.9 in)
1924	35.6 mm (1.4 in)
1925	90.2 mm (3.6 in)
1926	43.9 mm (1.7 in)
1927	64.0 mm (2.5 in)
1928	59.4 mm (2.3 in)
1929	31.8 mm (1.3 in)
1930	43.9 mm (1.7 in)
1931	39.9 mm (1.6 in)
1932	78.2 mm (3.1 in)
1933	62.5 mm (2.5 in)
1934	29.2 mm (1.1 in)
1951	189.2 mm (7.4 in)
1952	96.5 mm (3.8 in)
1953	64.0 mm (2.5 in)
1954	128.5 mm (5.1 in)
1955	77.0 mm (3.0 in)
1956	40.4 mm (1.6 in)
1957	45.0 mm (1.8 in)
1958	39.0 mm (1.5 in)
1959	53.5 mm (2.1 in)
1960	34.5 mm (1.4 in)
1961	64.0 mm (2.5 in)
1962	66.5 mm (2.6 in)
1963	90.5 mm (3.6 in)
1964	93.0 mm (3.7 in)
1965	68.0 mm (2.7 in)
1966	35.0 mm (1.4 in)
1967	75.5 mm (3.0 in)
1968	65.0 mm (2.6 in)
1969	113.0 mm (4.4 in)
1970	72.0 mm (2.8 in)
1971	52.0 mm (2.0 in)
1972	44.0 mm (1.7 in)
1973	43.5 mm (1.7 in)
1974	67.5 mm (2.7 in)
1975	38.0 mm (1.5 in)
1976	52.0 mm (2.0 in)
1977	75.0 mm (3.0 in)
1978	81.0 mm (3.2 in)
1979	42.0 mm (1.7 in)
1980	43.0 mm (1.7 in)
1981	91.0 mm (3.6 in)
1982	74.0 mm (2.9 in)
1983	76.0 mm (3.0 in)
1984	39.5 mm (1.6 in)
1985	68.0 mm (2.7 in)
1986	63.0 mm (2.5 in)
1987	86.0 mm (3.4 in)
1988	35.5 mm (1.4 in)
1989	65.0 mm (2.6 in)
1990	52.3 mm (2.1 in)
1991	54.0 mm (2.1 in)
1992	96.3 mm (3.8 in)
1993	163.5 mm (6.4 in)
1994	53.4 mm (2.1 in)
1995	38.3 mm (1.5 in)
1996	39.6 mm (1.6 in)
1997	32.2 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Knysna (Tnk), 1880 to 1997. The record is 272.1 mm (10.7 in) in 1916, marked on the chart; the median year is 86.9 mm (3.4 in).

Wettest five days (Rx5day) at Knysna (Tnk) by year
Year	Wettest five days (Rx5day)
1880	86.4 mm (3.4 in)
1882	47.2 mm (1.9 in)
1883	86.1 mm (3.4 in)
1884	107.0 mm (4.2 in)
1885	86.4 mm (3.4 in)
1886	75.6 mm (3.0 in)
1887	104.9 mm (4.1 in)
1888	116.6 mm (4.6 in)
1889	100.6 mm (4.0 in)
1890	50.5 mm (2.0 in)
1891	112.3 mm (4.4 in)
1892	60.7 mm (2.4 in)
1893	67.7 mm (2.7 in)
1894	83.3 mm (3.3 in)
1895	64.0 mm (2.5 in)
1896	103.9 mm (4.1 in)
1897	69.3 mm (2.7 in)
1898	100.1 mm (3.9 in)
1899	66.3 mm (2.6 in)
1900	73.4 mm (2.9 in)
1901	75.9 mm (3.0 in)
1902	95.8 mm (3.8 in)
1903	70.4 mm (2.8 in)
1904	107.7 mm (4.2 in)
1905	169.4 mm (6.7 in)
1906	111.5 mm (4.4 in)
1907	52.2 mm (2.1 in)
1908	76.2 mm (3.0 in)
1909	112.3 mm (4.4 in)
1910	73.2 mm (2.9 in)
1912	61.5 mm (2.4 in)
1913	82.8 mm (3.3 in)
1914	73.4 mm (2.9 in)
1915	42.7 mm (1.7 in)
1916	272.1 mm (10.7 in)
1917	84.9 mm (3.3 in)
1918	110.5 mm (4.4 in)
1919	54.6 mm (2.1 in)
1920	99.7 mm (3.9 in)
1921	72.8 mm (2.9 in)
1922	90.3 mm (3.6 in)
1923	69.8 mm (2.7 in)
1924	48.0 mm (1.9 in)
1925	160.0 mm (6.3 in)
1926	56.6 mm (2.2 in)
1927	117.0 mm (4.6 in)
1928	104.7 mm (4.1 in)
1929	62.3 mm (2.5 in)
1930	52.3 mm (2.1 in)
1931	58.3 mm (2.3 in)
1932	130.8 mm (5.1 in)
1933	124.7 mm (4.9 in)
1934	32.0 mm (1.3 in)
1951	210.5 mm (8.3 in)
1952	123.7 mm (4.9 in)
1953	145.0 mm (5.7 in)
1954	203.0 mm (8.0 in)
1955	144.0 mm (5.7 in)
1956	86.7 mm (3.4 in)
1957	71.5 mm (2.8 in)
1958	61.5 mm (2.4 in)
1959	93.0 mm (3.7 in)
1960	77.0 mm (3.0 in)
1961	86.5 mm (3.4 in)
1962	118.0 mm (4.6 in)
1963	148.5 mm (5.8 in)
1964	209.0 mm (8.2 in)
1965	92.0 mm (3.6 in)
1966	50.0 mm (2.0 in)
1967	92.0 mm (3.6 in)
1968	104.0 mm (4.1 in)
1969	140.0 mm (5.5 in)
1970	154.0 mm (6.1 in)
1971	91.5 mm (3.6 in)
1972	78.0 mm (3.1 in)
1973	51.5 mm (2.0 in)
1974	72.5 mm (2.9 in)
1975	67.0 mm (2.6 in)
1976	88.5 mm (3.5 in)
1977	151.0 mm (5.9 in)
1978	90.5 mm (3.6 in)
1979	76.5 mm (3.0 in)
1980	68.5 mm (2.7 in)
1981	169.5 mm (6.7 in)
1982	122.9 mm (4.8 in)
1983	119.0 mm (4.7 in)
1984	65.3 mm (2.6 in)
1985	87.0 mm (3.4 in)
1986	71.7 mm (2.8 in)
1987	145.2 mm (5.7 in)
1988	52.0 mm (2.0 in)
1989	94.0 mm (3.7 in)
1990	93.2 mm (3.7 in)
1991	71.2 mm (2.8 in)
1992	178.2 mm (7.0 in)
1993	226.5 mm (8.9 in)
1994	97.3 mm (3.8 in)
1995	59.3 mm (2.3 in)
1996	88.4 mm (3.5 in)
1997	61.8 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Knysna (Tnk), 1880 to 1997. The record is 43 days in 1899, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Knysna (Tnk) by year
Year	Longest dry spell (CDD)
1880	32 days
1882	27 days
1883	22 days
1884	21 days
1885	19 days
1886	24 days
1887	18 days
1888	19 days
1889	19 days
1890	17 days
1891	24 days
1892	26 days
1893	18 days
1894	21 days
1895	37 days
1896	16 days
1897	21 days
1898	15 days
1899	43 days
1900	20 days
1901	15 days
1902	17 days
1903	18 days
1904	16 days
1905	16 days
1906	14 days
1907	24 days
1908	16 days
1909	18 days
1910	22 days
1912	23 days
1913	42 days
1914	18 days
1915	14 days
1916	21 days
1917	31 days
1918	19 days
1919	20 days
1920	24 days
1921	24 days
1922	18 days
1923	21 days
1924	15 days
1925	19 days
1926	16 days
1927	25 days
1928	15 days
1929	14 days
1930	19 days
1931	15 days
1932	15 days
1933	25 days
1934	18 days
1951	13 days
1952	19 days
1953	31 days
1954	20 days
1955	18 days
1956	20 days
1957	20 days
1958	29 days
1959	15 days
1960	28 days
1961	21 days
1962	12 days
1963	22 days
1964	34 days
1965	30 days
1966	23 days
1967	25 days
1968	23 days
1969	25 days
1970	19 days
1971	30 days
1972	28 days
1973	17 days
1974	21 days
1975	24 days
1976	21 days
1977	12 days
1978	21 days
1979	24 days
1980	18 days
1981	16 days
1982	20 days
1983	16 days
1984	18 days
1985	19 days
1986	20 days
1987	18 days
1988	27 days
1989	23 days
1990	28 days
1991	24 days
1992	18 days
1993	21 days
1994	23 days
1995	23 days
1996	20 days
1997	20 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

88 years, 1883 to 1996

A day with at least 56.8 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 159.2 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Knysna (Tnk): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	56.8 mm (2.2 in)
5 years	79.2 mm (3.1 in)
10 years	95.9 mm (3.8 in)
25 years	119.2 mm (4.7 in)
50 years	138.4 mm (5.4 in)
100 years	159.2 mm (6.3 in)	Longer than the 88 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 88 years of values from 1883 to 1996.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 208.3 mm (8.2 in) in 1916; 163.5 mm (6.4 in) in 1993; 128.5 mm (5.1 in) in 1954.

Download the Data

Data for Knysna (Tnk) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Knysna (Tnk) threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a