Sunyani Weather Records (GHM00065439)

Record envelope, standing records and threshold days for Sunyani (GHM00065439), Ghana, with 49 years of record.

Key Facts for Sunyani

Sunyani (GHM00065439) is a weather station in Ghana at 7.36 latitude and -2.33 longitude, 309 m (1,014 ft) above sea level.
The station reports from 1977 to 2025, 49 years of record.
1,464 records set at Sunyani still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Ghana, 7.36 latitude, -2.33 longitude.
Elevation: 309 m (1,014 ft).
Period of record: 1977 to 2025, 49 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

34 days at or beyond a record

The band shows the record high and record low for each calendar day at Sunyani. The lines show the 2026 daily maximum and minimum. 34 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Sunyani, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.3 C (100.9 F)	13.2 C (55.8 F)	36.2 C (97.2 F)	15.8 C (60.4 F)
Feb	40.5 C (104.9 F)	12.1 C (53.8 F)	37.8 C (100.0 F)	19.6 C (67.3 F)
Mar	38.2 C (100.8 F)	15.0 C (59.0 F)	37.5 C (99.5 F)	20.1 C (68.2 F)
Apr	38.0 C (100.4 F)	18.5 C (65.3 F)	36.8 C (98.2 F)	22.5 C (72.5 F)
May	36.0 C (96.8 F)	19.5 C (67.1 F)	34.1 C (93.4 F)	21.1 C (70.0 F)
Jun	34.7 C (94.5 F)	16.6 C (61.9 F)	32.6 C (90.7 F)	20.0 C (68.0 F)
Jul	36.5 C (97.7 F)	18.0 C (64.4 F)	30.3 C (86.5 F)	20.2 C (68.4 F)
Aug	38.0 C (100.4 F)	16.5 C (61.7 F)	29.0 C (84.2 F)	20.9 C (69.6 F)
Sep	38.5 C (101.3 F)	17.5 C (63.5 F)	n/a	n/a
Oct	36.3 C (97.3 F)	17.9 C (64.2 F)	n/a	n/a
Nov	35.4 C (95.7 F)	18.1 C (64.6 F)	n/a	n/a
Dec	36.0 C (96.8 F)	14.5 C (58.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sunyani still stand. 2020 holds the most, with 151.

Standing records at Sunyani by the year they were set
Year set	Standing records
1977	1
1989	1
1990	3
1991	2
1992	1
1993	4
1994	4
1995	6
1997	5
1998	4
2002	1
2004	13
2005	31
2006	22
2007	3
2008	32
2009	82
2010	81
2011	61
2012	44
2013	22
2014	29
2015	38
2016	86
2017	85
2018	69
2019	109
2020	151
2021	99
2022	71
2023	138
2024	116
2025	50

Wettest Day of Each Month

Apr: 120.9 mm (4.8 in)

The wettest day on record for each calendar month at Sunyani. The most was 120.9 mm (4.8 in) on 22 April 2024.

Record daily precipitation for each month at Sunyani
Month	Record daily precipitation (mm)	Date
Jan	37.1 mm (1.5 in)	12 January 2021
Feb	72.9 mm (2.9 in)	27 February 2013
Mar	82.0 mm (3.2 in)	25 March 2020
Apr	120.9 mm (4.8 in)	22 April 2024
May	61.0 mm (2.4 in)	20 May 2009
Jun	103.1 mm (4.1 in)	26 June 2024
Jul	86.1 mm (3.4 in)	16 July 2010
Aug	103.1 mm (4.1 in)	25 August 2018
Sep	87.9 mm (3.5 in)	14 September 2011
Oct	115.1 mm (4.5 in)	5 October 2020
Nov	61.0 mm (2.4 in)	25 November 2023
Dec	50.0 mm (2.0 in)	13 December 1993

Period of Record Coverage

1977 to 2025

35 years of record at Sunyani, 1977 to 2025. 35 years have data for under 90 percent of days and are left out of rankings: 1977, 1978, 1989, 1990, 1991, 1992, 1993, 1994 and others.

Days with data per year at Sunyani
Year	Days with data	Share of year	Complete
1977	1	0%	No
1978	1	0%	No
1989	1	0%	No
1990	13	4%	No
1991	3	1%	No
1992	2	1%	No
1993	11	3%	No
1994	8	2%	No
1995	12	3%	No
1997	5	1%	No
1998	3	1%	No
2000	2	1%	No
2003	2	1%	No
2004	37	10%	No
2005	89	24%	No
2006	45	12%	No
2007	15	4%	No
2008	72	20%	No
2009	183	50%	No
2010	200	55%	No
2011	117	32%	No
2012	120	33%	No
2013	64	18%	No
2014	91	25%	No
2015	79	22%	No
2016	176	48%	No
2017	207	57%	No
2018	182	50%	No
2019	223	61%	No
2020	290	79%	No
2021	252	69%	No
2022	247	68%	No
2023	298	82%	No
2024	309	84%	No
2025	190	52%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1977 to 2025

Yearly extremes at Sunyani: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.5 C (104.9 F)	2023	36.5 C (97.7 F)	35
Coldest night (TNn)	12.1 C (53.8 F)	2011	17.0 C (62.6 F)	37
Wettest day (Rx1day)	120.9 mm (4.8 in)	2024	45.0 mm (1.8 in)	34
Wettest five days (Rx5day)	138.5 mm (5.5 in)	2025	74.6 mm (2.9 in)	16
Longest dry spell (CDD)	8 days	2023	2 days	30

Hottest day (TXx)

The hottest day of the year at Sunyani, 1977 to 2025. The record is 40.5 C (104.9 F) in 2023, marked on the chart; the median year is 36.5 C (97.7 F).

Hottest day (TXx) at Sunyani by year
Year	Hottest day (TXx)
1977	31.0 C (87.8 F)
1978	35.0 C (95.0 F)
1989	25.0 C (77.0 F)
1990	35.6 C (96.1 F)
1991	32.8 C (91.0 F)
1992	32.0 C (89.6 F)
1993	35.0 C (95.0 F)
1994	34.0 C (93.2 F)
1995	37.1 C (98.8 F)
1997	32.8 C (91.0 F)
1998	35.7 C (96.3 F)
1999	n/a
2000	31.0 C (87.8 F)
2002	n/a
2003	32.2 C (90.0 F)
2004	36.5 C (97.7 F)
2005	36.3 C (97.3 F)
2006	36.2 C (97.2 F)
2007	36.5 C (97.7 F)
2008	33.8 C (92.8 F)
2009	37.5 C (99.5 F)
2010	38.3 C (100.9 F)
2011	38.5 C (101.3 F)
2012	38.0 C (100.4 F)
2013	36.6 C (97.9 F)
2014	35.7 C (96.3 F)
2015	36.2 C (97.2 F)
2016	39.0 C (102.2 F)
2017	37.7 C (99.9 F)
2018	37.6 C (99.7 F)
2019	38.0 C (100.4 F)
2020	38.8 C (101.8 F)
2021	37.5 C (99.5 F)
2022	38.0 C (100.4 F)
2023	40.5 C (104.9 F)
2024	39.3 C (102.7 F)
2025	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Sunyani, 1977 to 2025. The record is 12.1 C (53.8 F) in 2011, marked on the chart; the median year is 17.0 C (62.6 F).

Coldest night (TNn) at Sunyani by year
Year	Coldest night (TNn)
1977	21.0 C (69.8 F)
1978	22.0 C (71.6 F)
1989	21.3 C (70.3 F)
1990	20.4 C (68.7 F)
1991	20.6 C (69.1 F)
1992	20.0 C (68.0 F)
1993	19.8 C (67.6 F)
1994	15.4 C (59.7 F)
1995	20.0 C (68.0 F)
1997	20.2 C (68.4 F)
1998	14.5 C (58.1 F)
1999	22.8 C (73.0 F)
2000	21.2 C (70.2 F)
2002	21.8 C (71.2 F)
2003	23.2 C (73.8 F)
2004	19.5 C (67.1 F)
2005	16.9 C (62.4 F)
2006	14.3 C (57.7 F)
2007	17.9 C (64.2 F)
2008	15.4 C (59.7 F)
2009	14.5 C (58.1 F)
2010	15.6 C (60.1 F)
2011	12.1 C (53.8 F)
2012	15.0 C (59.0 F)
2013	13.4 C (56.1 F)
2014	15.6 C (60.1 F)
2015	15.6 C (60.1 F)
2016	18.3 C (64.9 F)
2017	17.0 C (62.6 F)
2018	13.2 C (55.8 F)
2019	19.7 C (67.5 F)
2020	16.1 C (61.0 F)
2021	15.0 C (59.0 F)
2022	17.0 C (62.6 F)
2023	15.0 C (59.0 F)
2024	15.5 C (59.9 F)
2025	15.8 C (60.4 F)

Wettest day (Rx1day)

The wettest day of the year at Sunyani, 1977 to 2025. The record is 120.9 mm (4.8 in) in 2024, marked on the chart; the median year is 45.0 mm (1.8 in).

Wettest day (Rx1day) at Sunyani by year
Year	Wettest day (Rx1day)
1977	0.0 mm (0.00 in)
1978	0.0 mm (0.00 in)
1989	2.0 mm (0.08 in)
1990	25.9 mm (1.0 in)
1991	2.0 mm (0.08 in)
1992	0.0 mm (0.00 in)
1993	50.0 mm (2.0 in)
1994	11.9 mm (0.5 in)
1995	19.1 mm (0.8 in)
1997	16.0 mm (0.6 in)
1998	0.0 mm (0.00 in)
1999	n/a
2000	27.9 mm (1.1 in)
2002	n/a
2003	n/a
2004	27.9 mm (1.1 in)
2005	61.0 mm (2.4 in)
2006	82.0 mm (3.2 in)
2007	11.9 mm (0.5 in)
2008	33.0 mm (1.3 in)
2009	61.0 mm (2.4 in)
2010	86.1 mm (3.4 in)
2011	87.9 mm (3.5 in)
2012	49.0 mm (1.9 in)
2013	72.9 mm (2.9 in)
2014	23.1 mm (0.9 in)
2015	58.9 mm (2.3 in)
2016	40.9 mm (1.6 in)
2017	35.1 mm (1.4 in)
2018	103.1 mm (4.1 in)
2019	53.1 mm (2.1 in)
2020	115.1 mm (4.5 in)
2021	67.1 mm (2.6 in)
2022	67.1 mm (2.6 in)
2023	63.0 mm (2.5 in)
2024	120.9 mm (4.8 in)
2025	87.1 mm (3.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sunyani, 1977 to 2025. The record is 138.5 mm (5.5 in) in 2025, marked on the chart; the median year is 74.6 mm (2.9 in).

Wettest five days (Rx5day) at Sunyani by year
Year	Wettest five days (Rx5day)
1977	n/a
1978	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2002	n/a
2003	n/a
2004	n/a
2005	75.7 mm (3.0 in)
2006	n/a
2007	n/a
2008	24.8 mm (1.0 in)
2009	102.9 mm (4.1 in)
2010	66.9 mm (2.6 in)
2011	n/a
2012	100.0 mm (3.9 in)
2013	n/a
2014	n/a
2015	54.9 mm (2.2 in)
2016	33.0 mm (1.3 in)
2017	38.9 mm (1.5 in)
2018	86.1 mm (3.4 in)
2019	102.9 mm (4.1 in)
2020	57.6 mm (2.3 in)
2021	73.5 mm (2.9 in)
2022	73.2 mm (2.9 in)
2023	131.1 mm (5.2 in)
2024	111.8 mm (4.4 in)
2025	138.5 mm (5.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sunyani, 1977 to 2025. The record is 8 days in 2023, marked on the chart; the median year is 2 days.

Longest dry spell (CDD) at Sunyani by year
Year	Longest dry spell (CDD)
1977	1 day
1978	1 day
1989	n/a
1990	1 day
1991	1 day
1992	1 day
1993	2 days
1994	n/a
1995	1 day
1997	n/a
1998	1 day
1999	n/a
2000	n/a
2002	n/a
2003	n/a
2004	3 days
2005	4 days
2006	1 day
2007	1 day
2008	2 days
2009	4 days
2010	3 days
2011	2 days
2012	3 days
2013	1 day
2014	2 days
2015	2 days
2016	3 days
2017	3 days
2018	1 day
2019	4 days
2020	4 days
2021	3 days
2022	4 days
2023	8 days
2024	3 days
2025	3 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.

Download the Data

Data for Sunyani standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sunyani 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).