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Monthly climate in Tuam, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tuam features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 15 °C (60 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 1097 mm (43.2 inches) and receives 181 rainy days on the 1 mm (0.04 inches) threshold annually. Tuam enjoys an average of 2804 hours of sunshine throughout the year, and daylight varies from 7 hours 32 minutes to 16 hours 55 minutes per day.

Monthly average temperatures in Tuam, Ireland

The warmest months in Tuam are June, July and August, with daily mean temperatures ranging from 14 to 15 °C (57 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 7 °C (43 - 44 °F) throughout the day. On average each year, Tuam experiences 2 days above 25 °C (77.0 °F) and 18 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Tuam. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(58°F)		15°C
(60°F)		17°C
(63°F)		21°C
(71°F)		25°C
(77°F)		29°C
(84°F)		28°C
(83°F)		23°C
(74°F)		25°C
(78°F)		20°C
(68°F)		15°C
(60°F)		14°C
(57°F)
Mean maximum12°C
(54°F)		13°C
(55°F)		14°C
(58°F)		18°C
(65°F)		22°C
(72°F)		22°C
(72°F)		24°C
(76°F)		22°C
(71°F)		21°C
(71°F)		17°C
(63°F)		14°C
(58°F)		13°C
(55°F)
Average high8°C
(47°F)		9°C
(48°F)		10°C
(50°F)		12°C
(55°F)		15°C
(60°F)		17°C
(63°F)		19°C
(66°F)		18°C
(64°F)		16°C
(61°F)		13°C
(56°F)		10°C
(51°F)		9°C
(48°F)
Daily mean6°C
(43°F)		6°C
(43°F)		7°C
(44°F)		9°C
(48°F)		11°C
(53°F)		14°C
(57°F)		15°C
(60°F)		15°C
(59°F)		13°C
(56°F)		10°C
(51°F)		8°C
(46°F)		7°C
(44°F)
Average low4°C
(39°F)		4°C
(39°F)		4°C
(39°F)		5°C
(41°F)		7°C
(46°F)		10°C
(51°F)		12°C
(54°F)		12°C
(54°F)		10°C
(50°F)		8°C
(46°F)		5°C
(42°F)		4°C
(40°F)
Mean minimum-2°C
(28°F)		-2°C
(29°F)		-2°C
(29°F)		-1°C
(30°F)		1°C
(35°F)		5°C
(41°F)		7°C
(45°F)		7°C
(45°F)		4°C
(39°F)		2°C
(36°F)		-1°C
(31°F)		-1°C
(31°F)
Minimum-4°C
(25°F)		-3°C
(26°F)		-5°C
(23°F)		-3°C
(27°F)		-2°C
(28°F)		3°C
(38°F)		6°C
(43°F)		5°C
(42°F)		0°C
(32°F)		-1°C
(31°F)		-2°C
(29°F)		-4°C
(25°F)

Compare climate in Tuam with other places

Compare temperature, precipitation, sunshine, UV index in Tuam, Ireland with other places around the world.

Monthly average precipitation in Tuam, Ireland

Tuam usually has the most precipitation in February, August and October, with an average of 17 rainy days and 117 mm (4.6 inches) of precipitation per month. The driest months in Tuam are January, April and May. On average, 69 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tuam. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)73 (2.9)120 (4.7)98 (3.9)60 (2.4)73 (2.9)82 (3.2)82 (3.2)121 (4.8)78 (3.1)111 (4.4)95 (3.7)105 (4.1)
Average precipitation days (≥ 1 mm)111715121415141815171617

Monthly sunshine hours in Tuam, Ireland

The sunniest months in Tuam are May, June and July, when the sun shines an average of 12 hours 9 minutes a day. Least sunny months in Tuam: January, November and December receive an average of 2 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tuam. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours7013317630038236636931427521511187
Mean daily daylight hours8h 6m9h 48m11h 54m14h 2m15h 55m16h 55m16h 23m14h 41m12h 37m10h 30m8h 34m7h 32m

Solar UV radiation in Tuam, Ireland

Tuam experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 8, which corresponds to the High / Very High category of sun exposure. January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Tuam UV Index data.

Average daily maximum UV levels by month for Tuam. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124578875321