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Monthly climate in Leiria, Portugal

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Leiria features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 9 °C (49 °F) and 20 °C (68 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 714 mm (28.1 inches) and receives 90 rainy days on the 1 mm (0.04 inches) threshold annually.Leiria enjoys an average of 3699 hours of sunshine throughout the year, and daylight varies from 9 hours 23 minutes to 14 hours 56 minutes per day.

Monthly average temperatures in Leiria, Portugal §

The warmest months in Leiria are July, August and September, with daily mean temperatures ranging from 19 to 20 °C (67 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 12 °C (49 - 53 °F) throughout the day. On average each year, Leiria experiences 53 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Leiria, Portugal.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 20°C
(68°F)		 24°C
(75°F)		 27°C
(80°F)		 29°C
(84°F)		 33°C
(92°F)		 35°C
(94°F)		 36°C
(97°F)		 37°C
(99°F)		 35°C
(95°F)		 35°C
(95°F)		 25°C
(77°F)		 19°C
(66°F)
Mean maximum 18°C
(64°F)		 21°C
(71°F)		 23°C
(73°F)		 25°C
(78°F)		 30°C
(87°F)		 30°C
(87°F)		 32°C
(91°F)		 33°C
(91°F)		 32°C
(90°F)		 29°C
(84°F)		 22°C
(72°F)		 18°C
(65°F)
Average high 14°C
(57°F)		 16°C
(61°F)		 17°C
(63°F)		 19°C
(66°F)		 22°C
(72°F)		 23°C
(73°F)		 25°C
(77°F)		 26°C
(79°F)		 25°C
(78°F)		 22°C
(72°F)		 17°C
(62°F)		 15°C
(59°F)
Daily mean 9°C
(49°F)		 12°C
(53°F)		 13°C
(55°F)		 14°C
(58°F)		 17°C
(63°F)		 18°C
(65°F)		 20°C
(68°F)		 20°C
(68°F)		 19°C
(67°F)		 17°C
(63°F)		 13°C
(56°F)		 11°C
(53°F)
Average low 6°C
(43°F)		 8°C
(46°F)		 9°C
(48°F)		 10°C
(51°F)		 12°C
(55°F)		 14°C
(57°F)		 15°C
(60°F)		 15°C
(60°F)		 15°C
(59°F)		 13°C
(55°F)		 10°C
(50°F)		 8°C
(47°F)
Mean minimum -1°C
(31°F)		 2°C
(36°F)		 3°C
(38°F)		 6°C
(42°F)		 8°C
(46°F)		 12°C
(53°F)		 13°C
(56°F)		 13°C
(55°F)		 11°C
(52°F)		 7°C
(45°F)		 5°C
(41°F)		 2°C
(35°F)
Minimum -3°C
(27°F)		 -0°C
(32°F)		 1°C
(34°F)		 4°C
(39°F)		 6°C
(42°F)		 8°C
(47°F)		 12°C
(54°F)		 12°C
(54°F)		 9°C
(48°F)		 6°C
(43°F)		 4°C
(39°F)		 -2°C
(29°F)

Compare climate in Leiria with other places

Compare temperature, precipitation, sunshine, UV index in Leiria, Portugal with other places around the world.

Monthly average precipitation in Leiria, Portugal §

Leiria usually has the most precipitation in March, April and November, with an average of 12 rainy days and 104 mm (4.1 inches) of precipitation per month.The driest months in Leiria are June, July and August. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Leiria, Portugal.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 52 (2.1) 67 (2.6) 100 (4.0) 105 (4.1) 52 (2.0) 24 (0.9) 7 (0.3) 6 (0.2) 32 (1.3) 78 (3.1) 106 (4.2) 83 (3.3)
Average precipitation days (≥ 1 mm) 7 9 10 13 6 7 2 1 3 7 13 12

Monthly sunshine hours in Leiria, Portugal §

The sunniest months in Leiria are May, June and July, when the sun shines an average of 13 hours 16 minutes a day.Least sunny months in Leiria: January, February and December receive an average of 6 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Leiria, Portugal.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 173 213 290 339 404 401 414 389 343 307 218 201
Mean daily daylight hours 9h 41m 10h 41m 11h 58m 13h 16m 14h 23m 14h 56m 14h 38m 13h 39m 12h 24m 11h 6m 9h 57m 9h 23m

Solar UV radiation in Leiria, Portugal §

Leiria experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Leiria UV Index data.

Average daily maximum UV levels by month for Leiria, Portugal.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 4 6 9 10 11 10 9 8 6 4 3