Day
-4 °C
Night
-9 °C
Sea
2 °C
Precipitation
48 mm
in month
Rainy days
12 days
in month
Daylight
6 hours
average
Sunshine
1 hours
average
Humidity
87 %
We make the most from 40 years of historical weather data to predict the best weather conditions.
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The week of 25 November 2024 - 1 December 2024 had an average daily temperature of 5 °C (41 °F) and a minimum (nighttime) temperature of 2 °C (36 °F). These temperatures are above the long-time average for Lahti, being 0 °C (32 °F) for daily temperatures and -5 °C (23 °F) for night temperatures. The average temperatures observed during different times of day (based on local time) were as below: 7am 3 °C (37 °F), 10am 4 °C (39 °F), 1pm 4 °C (39 °F), 4pm 4 °C (39 °F), 7pm 4 °C (39 °F), 10pm 4 °C (39 °F).
During this week: 2 days without rain, 2 days with light rain and 3 days with moderate rain were observed. The total precipitation for the week in Lahti was 33 mm (1.30 in), which is above the area's average of 13 mm (0.51 in). The average cloud coverage during the daytime (from dawn to dusk) was 100 %.
Average speed of wind was 3.6 m/s. Prevailing wind direction(s) were South-West and South. The atmosferic pressure ranged from 1000 hpa to 1023 hpa. On average, the air humidity in Lahti was 92 %.
During the daytime (from dawn to dusk), there were in average: 4.5 hours overcast skies and 2.5 hours rainy weather. At 08:54, on average, the sun rose, and at 15:16, the sun set.
Lahti, located in Finland, experiences a moderately continental climate characterized by variable temperatures and precipitation throughout the year. Daytime temperatures can range from a chilly -4 °C (25 °F) in the frigid month of February to a warm 22 °C (71 °F) during the pleasant month of July. Nighttime temperatures follow a similar pattern, with the highest averages in July at 12 °C (54 °F), and the coldest nights in February reaching -10 °C (13 °F). April is notably the driest month, with an average of just 8 days of rainfall, while December is typically the wettest month with 13 days of rain. With this in mind, visitors should prepare accordingly for the season during which they plan to visit.
A decrease in daytime temperature is notable in Lahti, now averaging -4 °C (26 °F), and the night temperature has followed suit, dropping to -9 °C (15 °F). The peak wind speeds of the year can be observed this month, blowing at 3 m/s. A slight reduction in the number of rainy days begins this period, with an average of 12 days.
The lowest daytime temperature for the year is recorded at -4 °C (25 °F) in Lahti, with nighttime temperatures dropping to their lowest as well, at -10 °C (13 °F). Rainfall has decreased to 34 mm (1.33 in), and the number of rainy days has begun to decline, now at 10 days. Meanwhile, sunny hours start to increase, recorded at 2 hours.
March marks the onset of a rise in daytime temperatures, now at 1 °C (33 °F) in Lahti, with the trend continuing into the nighttime, where temperatures have risen to -6 °C (21 °F). A decline in the amount of rainy days persists, now at 9 days. An increase in sunny hours can be seen, now at 3 hours.
April sees a continued rise in daytime temperatures to 8 °C (46 °F) in Lahti and a significant increase in nighttime temperatures to -1 °C (30 °F). A seasonal low is reached in both the number of rainy days and rainfall amounts. The increment in sunny hours is noticeable, now averaging 5 hours.
Tourism in Lahti starts to pick up with the continued increase in daytime temperatures, now averaging 15 °C (60 °F), and nights warming to 5 °C (40 °F). Precipitation is on the rise, noted at 39 mm (1.54 in), while the lowest humidity levels can be observed during this time, averaging 67 %.
In June, daytime temperatures carry on their ascending trend, noted at 19 °C (67 °F) in Lahti, and night temperatures progress further, averaging 9 °C (49 °F). The tourist season is now evident. The number of rainy days begins to increase this month, but the highest count of sunny hours can still be enjoyed, averaging 9 hours.
Tourism in Lahti reaches its height along with the daytime temperature, reaching its zenith at 22 °C (71 °F), and nighttime temperatures also peaking at 12 °C (54 °F). Rainfall starts to climb from the previous month, noted at 73 mm (2.86 in), while the onset of a decrease in sunny hours begins.
August signals a pending shift in seasonality in Lahti, with a start of a decline in daytime temperatures, now at 19 °C (67 °F), and the same trend for nighttime temperatures is evident. The quantity of rainy days begins to increase, averaging 11 days, while the peak of rainfall for the year is recorded this month.
September sees a continuation of falling daytime temperatures, recorded at 13 °C (56 °F) in Lahti, with a similar trend in nighttime temperatures, now at 6 °C (43 °F). A reduction in the number of rainy days is observed, while a beginning decline in rainfall amounts is also noted. The amount of sunny hours starts to recede as well, now at 4 hours.
Daytime temperatures continue their downward trend, reaching 7 °C (45 °F) in Lahti, with nighttime temperatures also descending, now at 2 °C (36 °F). A gradual increase in rainfall volumes commences, now at 67 mm (2.62 in), and the number of rainy days starts to increase as well, noted at 11 days. A decline in sunny hours is observed, averaging 2 hours.
With November comes a likeness in the decline of daytime temperatures, now at 2 °C (35 °F), and nighttime temperatures steadily implunge as well, averaging -3 °C (27 °F). An ascent in the count of rainy days can be seen, now at 13 days, while the start of a decrease in rainfall is apparent. The maximum levels of humidity become evident, charting at 90 %.
December's continuation of dropping daytime temperatures, now at -2 °C (28 °F), and nighttime temperatures also descending in like manner. The highest amount of rainy days for the year is seen, now at 13 days. The day length hits its annual low point, while the least amount of sunny hours is recorded during this period.
Wind speeds in Lahti have reached their annual high, averaging 3 m/s for the month.
The frequency of rainy days in Lahti has started to lessen, currently averaging 10 days this month.
Sunny hours in Lahti have experienced a surge, now averaging 3 hours each day.
Daytime temperatures in Lahti have ascended to a mild 8 °C (46 °F) for April.
This month in Lahti features the lowest humidity levels of the year, averaging 67 %.
Night temperatures in June see a pleasant increase, now averaging 9 °C (49 °F) in Lahti.
With temperatures at their peak, especially a daytime high of 22 °C (71 °F), tourism in Lahti flourishes.
A noticeable downturn in both daytime and nighttime temperatures begins to manifest in August.
In September, Lahti experiences a declining trend in both rainy days, now at 11 days, and total rainfall amounts.
October marks a decrease in the duration of sunny periods, with an average of 2 hours of sunshine.
November is characterized by some of the highest humidity levels of the year, peaking at 90 %.
The day length in December in Lahti is at its shortest for the year, indicating the depth of winter.