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Monthly climate in Delfzijl, Netherlands

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Delfzijl features a oceanic climate (Cfb). Temperatures typically range between 4 °C (39 °F) and 18 °C (65 °F) through the year, but rarely can drop to -13 °C (10 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 854 mm (33.6 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually. Delfzijl enjoys an average of 3316 hours of sunshine throughout the year, and daylight varies from 7 hours 36 minutes to 16 hours 51 minutes per day.

Monthly average temperatures in Delfzijl, Netherlands

The warmest months in Delfzijl are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (63 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 5 °C (39 - 41 °F) throughout the day. On average each year, Delfzijl experiences 17 days above 25 °C (77.0 °F) and 31 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Delfzijl. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(57°F)		18°C
(64°F)		20°C
(69°F)		27°C
(82°F)		31°C
(87°F)		33°C
(92°F)		36°C
(97°F)		34°C
(94°F)		29°C
(85°F)		26°C
(79°F)		19°C
(66°F)		13°C
(56°F)
Mean maximum11°C
(53°F)		14°C
(57°F)		18°C
(64°F)		23°C
(73°F)		26°C
(78°F)		28°C
(82°F)		30°C
(86°F)		30°C
(86°F)		27°C
(80°F)		21°C
(70°F)		15°C
(59°F)		12°C
(54°F)
Average high6°C
(43°F)		7°C
(45°F)		10°C
(50°F)		13°C
(56°F)		17°C
(63°F)		21°C
(70°F)		22°C
(71°F)		22°C
(72°F)		19°C
(66°F)		15°C
(59°F)		9°C
(49°F)		7°C
(44°F)
Daily mean4°C
(39°F)		4°C
(40°F)		6°C
(43°F)		9°C
(48°F)		13°C
(55°F)		17°C
(63°F)		18°C
(64°F)		18°C
(65°F)		15°C
(59°F)		12°C
(53°F)		7°C
(45°F)		5°C
(41°F)
Average low2°C
(36°F)		2°C
(35°F)		2°C
(37°F)		5°C
(41°F)		8°C
(47°F)		13°C
(55°F)		14°C
(57°F)		14°C
(57°F)		11°C
(52°F)		9°C
(48°F)		5°C
(41°F)		3°C
(38°F)
Mean minimum-4°C
(25°F)		-5°C
(24°F)		-3°C
(27°F)		-1°C
(30°F)		2°C
(36°F)		8°C
(46°F)		9°C
(49°F)		10°C
(50°F)		7°C
(44°F)		2°C
(37°F)		-1°C
(30°F)		-3°C
(27°F)
Minimum-7°C
(19°F)		-13°C
(10°F)		-10°C
(14°F)		-2°C
(29°F)		0°C
(33°F)		6°C
(43°F)		8°C
(47°F)		9°C
(49°F)		5°C
(42°F)		-1°C
(30°F)		-2°C
(29°F)		-8°C
(18°F)

Compare climate in Delfzijl with other places

Compare temperature, precipitation, sunshine, UV index in Delfzijl, Netherlands with other places around the world.

Monthly average precipitation in Delfzijl, Netherlands

Delfzijl usually has the most precipitation in July, August and October, with an average of 14 rainy days and 91 mm (3.6 inches) of precipitation per month. The driest months in Delfzijl are February, April and November. On average, 53 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Delfzijl. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)61 (2.4)60 (2.4)71 (2.8)49 (1.9)70 (2.8)81 (3.2)97 (3.8)91 (3.6)64 (2.5)85 (3.3)51 (2.0)75 (2.9)
Average precipitation days (≥ 1 mm)131114111311141511151116

Monthly sunshine hours in Delfzijl, Netherlands

The sunniest months in Delfzijl are May, June and July, when the sun shines an average of 12 hours 47 minutes a day. Least sunny months in Delfzijl: January, November and December receive an average of 4 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Delfzijl. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours94194267345395385395383311237180125
Mean daily daylight hours8h 9m9h 50m11h 54m14h 1m15h 52m16h 51m16h 19m14h 39m12h 37m10h 31m8h 37m7h 36m

Solar UV radiation in Delfzijl, Netherlands

Delfzijl experiences the highest level of ultraviolet (UV) radiation in May, June 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 Delfzijl UV Index data.

Average daily maximum UV levels by month for Delfzijl. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123578775321