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January is the coldest month of the year in the beautiful city of Lisbon, Portugal. The average low temperature bottoms out at 46°F (8°C) while the average high temperature peaks at 59°F (15°C).
In February, both the average high and the average low temperatures increase by 2 degrees. The low temperature average rises to 48°F (9°C) while the high temperature average measures in at 61°F (16°C).
Lisbon Weather in March: Lisbon sees warmer weather in March as the spring season begins. The average low temperature increases to 52°F (11°C) and the average high temperature jumps to 66°F (19°C). Meanwhile, the colorful city receives a moderate amount of rain with a precipitation average of 53 mm.
In April, the upward trend in temperature continues as the low temperature average sees a 2-degree increase to 54°F (12°C). Meanwhile, the high temperature average increase by the same rate 68°F (20°C).
May sees the most sunshine out of the entire year with a 9-hour daily average. Both the average high temperature and the average low temperatures continue to rise measuring in at 72°F (22°C) and 57°F (14°C) respectively.
Lisbon Weather in June: Summer arrives to Lisbon in June, towing along with it a high temperature average of 79°F (26°C). The low temperature average also increases but remains quite cool at 63°F (17°C).
July is driest month of the year in Lisbon with just 4 mm of rainfall to be expected. The average high temperature hits a warm yet mild 82°F (28°C) while the average low temperature increases by a single degree to 64°F (18°C).
In August, Lisbon gets its hottest temperatures of the year. Though the high temperature average holds steady at 82°F (28°C), the average low temperature increases to 66°F (19°C).
Lisbon Weather in September: Although the summer season in Lisbon has technically come to an end by September, the temperature remains mild and warm. This the best time of the year to hit the beaches as it experiences the best sea temperatures of the year at 68°F (20°C). Low temperature averages go back down to 64°F (18°C) while the high temperature averages see a 1-degree decrease to 81°F (27°C).
In October, the average temperatures start to decline as autumn settles in. The average low temperature and average high temperature measure in at 59°F (15°C) and 73°F (23°C) respectively for this month.
November is the wettest month of the year in Lisbon, bringing in a high precipitation average of 128 mm. Low temperatures decrease by 5 degrees to 54°F (12°C) while high temperatures average at 64°F (18°C).
Lisbon Weather in December: Lisbon welcomes its winter season in December with chillier temperatures settling in the city. The average high temperature falls to 59°F (15°C), while the average low temperature sinks to 48°F (9°C).
Arguably the best time to visit the colorful city of Lisbon is between the months of March and May. During this time, most of the tourist crowds leaves the city and hotel rates start to drop. Beach goers ought to schedule their trips anytime between the months of June and September as temperatures are well above the 80s. For popular events like the Festas de Lisboa and Santos Populares, the best time head to Lisbon is June. Penny pinching tourists will want to plan their trips between September and October when the overall prices in the city start to decrease. Tourists who want to explore the city on foot will love a visit in the winter months of November through February. Temperatures are mild and pleasant, making strolling through the long streets of the city enjoyable.