Helsinki, Finland 14-Day Forecast
Finland 🇫🇮
57°
Overcast right now
Today: high 62°, low 54°
Updated 22 min ago
Helsinki weather for the next 14 days
Thursday, September 17
Patchy rain nearby High 62° Low 52°Precipitation
67%
· 0.07 in
Max wind
13 mph
Humidity
81%
UV index
2 - Low
Sunrise / sunset
06:53 AM / 07:36 PM
Friday, September 18
Patchy rain nearby High 58° Low 51°Precipitation
91%
· 0.43 in
Max wind
16 mph
Humidity
89%
UV index
1 - Low
Sunrise / sunset
06:55 AM / 07:33 PM
Saturday, September 19
Patchy rain nearby High 58° Low 54°Precipitation
84%
· 0.35 in
Max wind
17 mph
Humidity
84%
UV index
2 - Low
Sunrise / sunset
06:57 AM / 07:30 PM
Sunday, September 20
Patchy rain nearby High 59° Low 53°Precipitation
87%
· 0.3 in
Max wind
18 mph
Humidity
85%
UV index
3 - Moderate
Sunrise / sunset
07:00 AM / 07:27 PM
Monday, September 21
Light rain shower High 53° Low 48°Precipitation
92%
· 1.08 in
Max wind
8 mph
Humidity
93%
UV index
3 - Moderate
Sunrise / sunset
07:02 AM / 07:24 PM
Tuesday, September 22
Patchy rain nearby High 56° Low 47°Precipitation
81%
· 0.14 in
Max wind
12 mph
Humidity
88%
UV index
3 - Moderate
Sunrise / sunset
07:04 AM / 07:21 PM
Wednesday, September 23
Light rain shower High 62° Low 51°Precipitation
86%
· 0.19 in
Max wind
12 mph
Humidity
90%
UV index
5 - Moderate
Sunrise / sunset
07:07 AM / 07:18 PM
Thursday, September 24
Patchy rain nearby High 56° Low 48°Precipitation
58%
· 0.03 in
Max wind
12 mph
Humidity
81%
UV index
3 - Moderate
Sunrise / sunset
07:09 AM / 07:14 PM
Friday, September 25
Patchy rain nearby High 49° Low 46°Precipitation
84%
· 0.16 in
Max wind
12 mph
Humidity
86%
UV index
2 - Low
Sunrise / sunset
07:12 AM / 07:11 PM
Saturday, September 26
Patchy rain nearby High 54° Low 46°Precipitation
65%
· 0.03 in
Max wind
11 mph
Humidity
85%
UV index
3 - Moderate
Sunrise / sunset
07:14 AM / 07:08 PM
Sunday, September 27
Overcast High 52° Low 46°Precipitation
21%
· 0.0 in
Max wind
11 mph
Humidity
79%
UV index
4 - Moderate
Sunrise / sunset
07:16 AM / 07:05 PM
Monday, September 28
Overcast High 55° Low 50°Precipitation
15%
· 0.0 in
Max wind
16 mph
Humidity
78%
UV index
4 - Moderate
Sunrise / sunset
07:19 AM / 07:02 PM
Tuesday, September 29
Overcast High 52° Low 50°Precipitation
21%
· 0.0 in
Max wind
14 mph
Humidity
82%
UV index
3 - Moderate
Sunrise / sunset
07:21 AM / 06:59 PM
Helsinki 14-day outlook: the story
The warmest day of Helsinki's 14-day outlook is Wednesday, September 16 with a high near 62°F (17°C); the coolest night comes Saturday, September 26, dipping to 46°F (8°C). The trend points cooler: week two runs about 4°F below week one. Highs over the next two weeks average 58°F (15°C), right in line with the typical September high of 60°F (15°C).
Precipitation is most likely on Wednesday 16, Thursday 17, Friday 18, Saturday 19 and beyond; the wettest day looks like Monday, September 21 with about 1.08 in (27.5 mm) expected. For the weekend, expect Saturday 58°F (14°C) and patchy rain nearby / Sunday 59°F (15°C) and patchy rain nearby.
For typical conditions month by month, see the Helsinki climate & average temperatures guide.
Helsinki forecast questions
Will it rain in Helsinki this week?
The forecast currently shows meaningful precipitation chances on 11 of the next 14 days, peaking around Monday, September 21.
What will be the warmest day in Helsinki over the next 14 days?
Wednesday, September 16, with a forecast high near 62°F (17°C).
How accurate is a 14-day forecast for Helsinki?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Helsinki by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 30° | 22° | 14 | 2.7 in | 1.4 h/day | 86% |
| February | 31° | 23° | 12 | 2.5 in | 3.6 h/day | 86% |
| March | 35° | 26° | 11 | 1.8 in | 6.6 h/day | 83% |
| April | 45° | 33° | 10 | 1.8 in | 9.9 h/day | 76% |
| May | 57° | 43° | 9 | 1.9 in | 13.0 h/day | 70% |
| June | 66° | 53° | 10 | 2.2 in | 14.7 h/day | 70% |
| July | 69° | 57° | 13 | 3.1 in | 13.3 h/day | 76% |
| August | 68° | 57° | 13 | 3.3 in | 11.2 h/day | 79% |
| September | 60° | 51° | 11 | 2.7 in | 8.2 h/day | 81% |
| October | 48° | 40° | 13 | 3.1 in | 4.8 h/day | 84% |
| November | 40° | 34° | 14 | 3.1 in | 2.0 h/day | 87% |
| December | 34° | 28° | 14 | 2.6 in | 1.3 h/day | 87% |
14-day forecasts nearby