Monthly climate in Goroka, Papua New Guinea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Goroka features a tropical rainforest climate (Af). Temperatures typically range between 18 °C (65 °F) and 19 °C (67 °F) through the year, but rarely can drop to 12 °C (54 °F) or can rise to as high as 28 °C (82 °F). The average annual precipitation amounts to about 3386 mm (133.3 inches) and receives 304 rainy days on the 1 mm (0.04 inches) threshold annually. Goroka enjoys an average of 2663 hours of sunshine throughout the year, and daylight varies from 11 hours 45 minutes to 12 hours 27 minutes per day.

Monthly average temperatures in Goroka, Papua New Guinea

The warmest months in Goroka are January, February and December, with daily mean temperatures ranging from 19 to 19 °C (67 - 67 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 18 to 18 °C (65 - 65 °F) throughout the day. On average each year, Goroka experiences 65 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Goroka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)
27°C
(81°F)
27°C
(81°F)
26°C
(80°F)
26°C
(80°F)
26°C
(78°F)
26°C
(79°F)
26°C
(79°F)
26°C
(79°F)
27°C
(82°F)
27°C
(81°F)
27°C
(81°F)
Mean maximum27°C
(80°F)
27°C
(80°F)
26°C
(80°F)
26°C
(79°F)
26°C
(79°F)
24°C
(76°F)
25°C
(77°F)
25°C
(78°F)
26°C
(79°F)
27°C
(80°F)
26°C
(80°F)
27°C
(81°F)
Average high24°C
(76°F)
24°C
(76°F)
24°C
(75°F)
24°C
(75°F)
24°C
(75°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
24°C
(76°F)
24°C
(76°F)
24°C
(76°F)
Daily mean19°C
(67°F)
19°C
(67°F)
19°C
(66°F)
19°C
(66°F)
19°C
(67°F)
18°C
(65°F)
18°C
(65°F)
18°C
(65°F)
19°C
(66°F)
19°C
(66°F)
19°C
(67°F)
19°C
(67°F)
Average low16°C
(61°F)
16°C
(61°F)
16°C
(61°F)
16°C
(61°F)
16°C
(61°F)
15°C
(59°F)
15°C
(59°F)
15°C
(59°F)
15°C
(59°F)
15°C
(59°F)
16°C
(60°F)
16°C
(61°F)
Mean minimum14°C
(58°F)
14°C
(58°F)
14°C
(57°F)
14°C
(58°F)
14°C
(57°F)
13°C
(57°F)
13°C
(55°F)
14°C
(57°F)
13°C
(56°F)
13°C
(56°F)
13°C
(56°F)
14°C
(58°F)
Minimum14°C
(57°F)
14°C
(57°F)
13°C
(56°F)
13°C
(55°F)
13°C
(56°F)
12°C
(54°F)
12°C
(54°F)
13°C
(56°F)
12°C
(54°F)
13°C
(55°F)
13°C
(55°F)
14°C
(57°F)

Compare climate in Goroka with other places

Compare temperature, precipitation, sunshine, UV index in Goroka, Papua New Guinea with other places around the world.

Monthly average precipitation in Goroka, Papua New Guinea

Goroka usually has the most precipitation in February, March and December, with an average of 29 rainy days and 466 mm (18.3 inches) of precipitation per month. The driest months in Goroka are June, July and August. On average, 123 mm (4.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Goroka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)345 (13.6)488 (19.2)493 (19.4)374 (14.7)174 (6.9)118 (4.6)111 (4.4)141 (5.6)181 (7.1)206 (8.1)339 (13.3)417 (16.4)
Average precipitation days (≥ 1 mm)242831292518192225262829

Monthly sunshine hours in Goroka, Papua New Guinea

The sunniest months in Goroka are July, August and October, when the sun shines an average of 8 hours 2 minutes a day. Least sunny months in Goroka: January, February and March receive an average of 6 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Goroka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours182191188198232235248251238248221225
Mean daily daylight hours12h 25m12h 17m12h 7m11h 57m11h 49m11h 45m11h 47m11h 54m12h 3m12h 13m12h 22m12h 27m

Solar UV radiation in Goroka, Papua New Guinea

Goroka experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 17 - 18, which corresponds to the Extreme category of sun exposure. May, June and July are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 14. For more detailed information, check out our hourly Goroka UV Index data.

Average daily maximum UV levels by month for Goroka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161818171412131516161515