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Built 2026-10-19 (19 October 2026)

Sume (Sao Tome) Weather Records (BR038563140)

Record envelope, standing records and threshold days for Sume (Sao Tome) (BR038563140), Brazil, with 49 years of record.

Key Facts for Sume (Sao Tome)

  • Sume (Sao Tome) (BR038563140) is a weather station in Brazil at -7.65 latitude and -36.93 longitude, 510 m (1,673 ft) above sea level.
  • The station reports from 1931 to 1979, 49 years of record.
  • 0 records set at Sume (Sao Tome) still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Sume (Sao Tome) tied a daily record precipitation of 20.0 mm (0.8 in) on 26 April 1979.

About the Station

  • Location: Brazil, -7.65 latitude, -36.93 longitude.
  • Elevation: 510 m (1,673 ft).
  • Period of record: 1931 to 1979, 49 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Sume (Sao Tome), with 2026 drawn through them The band shows the record high and record low for each calendar day at Sume (Sao Tome). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Sume (Sao Tome). 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 Sume (Sao Tome), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Sume (Sao Tome) by the year they were set 0 records at Sume (Sao Tome) still stand. 00000000000
0 records at Sume (Sao Tome) still stand.
Standing records at Sume (Sao Tome) by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 129.0 mm (5.1 in)
Record daily precipitation for each month at Sume (Sao Tome) The wettest day on record for each calendar month at Sume (Sao Tome). The most was 129.0 mm (5.1 in) on 28 February 1959. 050100150 Jan: 111.2 mm (4.4 in), 30 January 1966 Jan Feb: 129.0 mm (5.1 in), 28 February 1959 Feb Mar: 104.2 mm (4.1 in), 8 March 1975 Mar Apr: 104.8 mm (4.1 in), 6 April 1944 Apr May: 79.0 mm (3.1 in), 9 May 1945 May Jun: 61.5 mm (2.4 in), 29 June 1974 Jun Jul: 52.0 mm (2.0 in), 7 July 1964 Jul Aug: 13.5 mm (0.5 in), 25 August 1949 Aug Sep: 25.8 mm (1.0 in), 25 September 1964 Sep Oct: 69.5 mm (2.7 in), 2 October 1973 Oct Nov: 82.3 mm (3.2 in), 27 November 1954 Nov Dec: 61.0 mm (2.4 in), 20 December 1972 Dec
The wettest day on record for each calendar month at Sume (Sao Tome). The most was 129.0 mm (5.1 in) on 28 February 1959.
Record daily precipitation for each month at Sume (Sao Tome)
MonthRecord daily precipitation (mm)Date
Jan111.2 mm (4.4 in)30 January 1966
Feb129.0 mm (5.1 in)28 February 1959
Mar104.2 mm (4.1 in)8 March 1975
Apr104.8 mm (4.1 in)6 April 1944
May79.0 mm (3.1 in)9 May 1945
Jun61.5 mm (2.4 in)29 June 1974
Jul52.0 mm (2.0 in)7 July 1964
Aug13.5 mm (0.5 in)25 August 1949
Sep25.8 mm (1.0 in)25 September 1964
Oct69.5 mm (2.7 in)2 October 1973
Nov82.3 mm (3.2 in)27 November 1954
Dec61.0 mm (2.4 in)20 December 1972

Latest Records

20
Latest records at Sume (Sao Tome)
DateStationRecordValueBeat old record byOld record stoodSignificance
26 April 1979Sume (Sao Tome), BRdaily rain (Tie)20.0 mm (0.8 in)tie32 years3 of 100 (Routine)
26 February 1979Sume (Sao Tome), BRdaily rain56.2 mm (2.2 in)41.7 mm (1.6 in)4 years27 of 100 (Routine)
25 February 1979Sume (Sao Tome), BRdaily rain32.4 mm (1.3 in)16.4 mm (0.6 in)44 years26 of 100 (Routine)
13 February 1979Sume (Sao Tome), BRdaily rain67.0 mm (2.6 in)45.5 mm (1.8 in)17 years34 of 100 (Routine)
23 January 1979Sume (Sao Tome), BRdaily rain49.4 mm (1.9 in)1.2 mm (0.05 in)1 year4 of 100 (Routine)
16 January 1979Sume (Sao Tome), BRdaily rain7.0 mm (0.28 in)4.0 mm (0.16 in)17 years11 of 100 (Routine)
4 June 1977Sume (Sao Tome), BRdaily rain17.8 mm (0.7 in)2.8 mm (0.11 in)12 years9 of 100 (Routine)
23 January 1977Sume (Sao Tome), BRdaily rain48.2 mm (1.9 in)6.2 mm (0.24 in)8 years9 of 100 (Routine)
29 July 1976Sume (Sao Tome), BRdaily rain9.3 mm (0.37 in)5.6 mm (0.22 in)26 years20 of 100 (Routine)
27 July 1975Sume (Sao Tome), BRdaily rain25.8 mm (1.0 in)13.8 mm (0.5 in)16 years34 of 100 (Routine)
17 July 1975Sume (Sao Tome), BRdaily rain30.0 mm (1.2 in)25.7 mm (1.0 in)44 years57 of 100 (Notable)
5 July 1975Sume (Sao Tome), BRdaily rain5.5 mm (0.22 in)0.5 mm (0.02 in)8 years6 of 100 (Routine)
3 July 1975Sume (Sao Tome), BRdaily rain13.6 mm (0.5 in)4.4 mm (0.17 in)5 years13 of 100 (Routine)
18 May 1975Sume (Sao Tome), BRdaily rain18.4 mm (0.7 in)1.3 mm (0.05 in)6 years7 of 100 (Routine)
8 March 1975Sume (Sao Tome), BRmonthly rain104.2 mm (4.1 in)2.7 mm (0.11 in)20 years21 of 100 (Routine)
26 February 1975Sume (Sao Tome), BRdaily rain14.5 mm (0.6 in)0.3 mm (0.01 in)0 years4 of 100 (Routine)
10 February 1975Sume (Sao Tome), BRdaily rain71.0 mm (2.8 in)44.5 mm (1.8 in)8 years30 of 100 (Routine)
6 December 1974Sume (Sao Tome), BRdaily rain19.2 mm (0.8 in)10.3 mm (0.4 in)20 years18 of 100 (Routine)
5 December 1974Sume (Sao Tome), BRdaily rain19.1 mm (0.8 in)17.1 mm (0.7 in)37 years20 of 100 (Routine)
4 December 1974Sume (Sao Tome), BRdaily rain0.5 mm (0.02 in)0.3 mm (0.01 in)24 years11 of 100 (Routine)

Extremes by Year

1931 to 1979
Yearly extremes at Sume (Sao Tome): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)129.0 mm (5.1 in)195967.8 mm (2.7 in)48
Wettest five days (Rx5day)238.5 mm (9.4 in)1948126.0 mm (5.0 in)48
Longest dry spell (CDD)265 days197266 days48

Wettest day (Rx1day)

Wettest day (Rx1day) at Sume (Sao Tome) by year The wettest day of the year at Sume (Sao Tome), 1931 to 1979. The record is 129.0 mm (5.1 in) in 1959, marked on the chart; the median year is 67.8 mm (2.7 in). 0501001501940195019601970Record: 129.0 mm (5.1 in) in 1959
The wettest day of the year at Sume (Sao Tome), 1931 to 1979. The record is 129.0 mm (5.1 in) in 1959, marked on the chart; the median year is 67.8 mm (2.7 in).
Wettest day (Rx1day) at Sume (Sao Tome) by year
YearWettest day (Rx1day)
193156.1 mm (2.2 in)
19328.0 mm (0.31 in)
19330.0 mm (0.00 in)
193458.1 mm (2.3 in)
193568.5 mm (2.7 in)
193685.0 mm (3.3 in)
193734.0 mm (1.3 in)
193824.0 mm (0.9 in)
193972.0 mm (2.8 in)
194087.9 mm (3.5 in)
194142.0 mm (1.7 in)
194248.0 mm (1.9 in)
194337.5 mm (1.5 in)
1944104.8 mm (4.1 in)
194579.0 mm (3.1 in)
194690.5 mm (3.6 in)
194756.0 mm (2.2 in)
194874.5 mm (2.9 in)
194927.0 mm (1.1 in)
195035.0 mm (1.4 in)
195140.5 mm (1.6 in)
1952100.3 mm (3.9 in)
195372.0 mm (2.8 in)
1954101.5 mm (4.0 in)
195577.5 mm (3.1 in)
195645.0 mm (1.8 in)
195798.0 mm (3.9 in)
195897.0 mm (3.8 in)
1959129.0 mm (5.1 in)
196080.4 mm (3.2 in)
196156.2 mm (2.2 in)
196230.2 mm (1.2 in)
196366.5 mm (2.6 in)
196452.5 mm (2.1 in)
1965100.3 mm (3.9 in)
1966111.2 mm (4.4 in)
196783.3 mm (3.3 in)
196851.9 mm (2.0 in)
196985.6 mm (3.4 in)
197092.0 mm (3.6 in)
197152.6 mm (2.1 in)
197261.0 mm (2.4 in)
197380.2 mm (3.2 in)
197484.5 mm (3.3 in)
1975104.2 mm (4.1 in)
19769.3 mm (0.37 in)
197748.2 mm (1.9 in)
197967.0 mm (2.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Sume (Sao Tome) by year The wettest five days of the year at Sume (Sao Tome), 1931 to 1979. The record is 238.5 mm (9.4 in) in 1948, marked on the chart; the median year is 126.0 mm (5.0 in). 01002003001940195019601970Record: 238.5 mm (9.4 in) in 1948
The wettest five days of the year at Sume (Sao Tome), 1931 to 1979. The record is 238.5 mm (9.4 in) in 1948, marked on the chart; the median year is 126.0 mm (5.0 in).
Wettest five days (Rx5day) at Sume (Sao Tome) by year
YearWettest five days (Rx5day)
193189.3 mm (3.5 in)
193211.0 mm (0.4 in)
19330.0 mm (0.00 in)
1934166.4 mm (6.6 in)
193568.5 mm (2.7 in)
1936165.0 mm (6.5 in)
193734.0 mm (1.3 in)
193825.5 mm (1.0 in)
1939146.2 mm (5.8 in)
1940150.0 mm (5.9 in)
194183.0 mm (3.3 in)
194249.0 mm (1.9 in)
194346.1 mm (1.8 in)
1944130.0 mm (5.1 in)
1945185.8 mm (7.3 in)
1946104.0 mm (4.1 in)
1947149.0 mm (5.9 in)
1948238.5 mm (9.4 in)
194970.9 mm (2.8 in)
195078.5 mm (3.1 in)
195180.0 mm (3.1 in)
1952151.8 mm (6.0 in)
195374.5 mm (2.9 in)
1954140.6 mm (5.5 in)
1955125.7 mm (4.9 in)
195673.5 mm (2.9 in)
1957166.6 mm (6.6 in)
1958195.7 mm (7.7 in)
1959159.5 mm (6.3 in)
1960171.8 mm (6.8 in)
1961138.2 mm (5.4 in)
196234.9 mm (1.4 in)
196386.1 mm (3.4 in)
196472.3 mm (2.8 in)
1965162.1 mm (6.4 in)
1966148.2 mm (5.8 in)
1967148.3 mm (5.8 in)
196896.2 mm (3.8 in)
1969158.6 mm (6.2 in)
1970137.2 mm (5.4 in)
1971126.2 mm (5.0 in)
197278.5 mm (3.1 in)
1973126.7 mm (5.0 in)
1974163.3 mm (6.4 in)
1975139.0 mm (5.5 in)
19769.3 mm (0.37 in)
197757.0 mm (2.2 in)
1979103.6 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Sume (Sao Tome) by year The longest dry spell of the year at Sume (Sao Tome), 1931 to 1979. The record is 265 days in 1972, marked on the chart; the median year is 66 days. 01002003001940195019601970Record: 265 days in 1972
The longest dry spell of the year at Sume (Sao Tome), 1931 to 1979. The record is 265 days in 1972, marked on the chart; the median year is 66 days.
Longest dry spell (CDD) at Sume (Sao Tome) by year
YearLongest dry spell (CDD)
1931131 days
1932157 days
193361 days
1934223 days
1935153 days
1936161 days
1937201 days
193879 days
193925 days
194060 days
194197 days
194248 days
194358 days
194441 days
194532 days
194688 days
194769 days
194858 days
194961 days
195080 days
1951149 days
1952128 days
195354 days
195496 days
195561 days
195668 days
1957104 days
195865 days
195935 days
196030 days
196198 days
196248 days
196328 days
196450 days
196548 days
196655 days
196787 days
196867 days
196944 days
197053 days
197168 days
1972265 days
197372 days
197467 days
197591 days
197663 days
197719 days
197919 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

41 years, 1931 to 1974

A day with at least 68.1 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 128.4 mm (5.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Sume (Sao Tome): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.1 mm (2.7 in)
5 years92.5 mm (3.6 in)
10 years104.5 mm (4.1 in)
25 years116.2 mm (4.6 in)
50 years123.0 mm (4.8 in)Longer than the 41 years of record
100 years128.4 mm (5.1 in)Longer than the 41 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, 41 years of values from 1931 to 1974.

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: 129.0 mm (5.1 in) in 1959; 111.2 mm (4.4 in) in 1966; 104.8 mm (4.1 in) in 1944.

Download the Data

  • Data for Sume (Sao Tome) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Sume (Sao Tome) 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

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