Helsinki Ilmasto and Average Sää
Ilmasto of Helsinki: average temperatures, rainfall and seasons month by month.
Ilmasto in Helsinki month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Kuukausi | Avg high | Avg low | Sadefall | Rating |
|---|---|---|---|---|
| tammikuu | -3° | -8° | 53 mm | ★★☆☆☆ |
| helmikuu | -3° | -8° | 42 mm | ★★☆☆☆ |
| maaliskuu | 4° | -1° | 29 mm | ★★★☆☆ |
| huhtikuu | 8° | 1° | 59 mm | ★★★☆☆ |
| tou | 15° | 7° | 28 mm | ★★★★☆ |
| kesäkuu | 19° | 12° | 80 mm | ★★★★☆ |
| heinäkuu | 22° | 15° | 89 mm | ★★★★☆ |
| elokuu | 20° | 14° | 76 mm | ★★★★☆ |
| syyskuu | 17° | 12° | 73 mm | ★★★★☆ |
| lokakuu | 10° | 5° | 85 mm | ★★★☆☆ |
| marraskuu | 5° | 1° | 82 mm | ★★☆☆☆ |
| joulukuu | 1° | -3° | 70 mm | ★★☆☆☆ |
Ilmasto type: Subarctic. Lähde: Open-Meteo archive (ERA5).
Recent extremes in Helsinki
Korkeaest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Helsinki compares ja nearby places
Annual averages, and the difference against Helsinki.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Estonia | 82 km | 7°C | about the same | 806 mm |
| Latvia | 361 km | 8°C | +2°C warmer | 873 mm |
| Stockholm Arlanda Airport | 395 km | 8°C | +1°C warmer | 610 mm |
| Sweden | 396 km | 8°C | +1°C warmer | 593 mm |
| Stockholm | 396 km | 8°C | +1°C warmer | 593 mm |
Ilmasto by airport in Helsinki
1 airports mapped in this atlas
Paras aika vierailla Helsinki
Go in tou, kesäkuu, heinäkuu, elokuu and syyskuu. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: tammikuu, helmikuu and joulukuu - expect the least comfortable mix of heat, cold or rain.
What this means for Helsinki
Today is about average for lokakuu. The forecast high of 11°C is in line ja the 10°C typical for this month.
A 65% chance means rain is expected over most of the area. Plan indoor alternatives.
Puuskat ja 55 km/h will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Above 60 degrees latitude, daylight swings enormously - summer nights barely darken and winter days are short.
Northern Hemisphere, so peak summer falls in kesäkuu ja elokuu.
The gap between the warmest and coldest month averages 24°C.
What ja pack, what ja skip
- A warm mid-layer and gloves for early mornings and evenings
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 55 km/h.
- If your dates are flexible, avoid tammikuu, helmikuu and joulukuu - historically the least comfortable months here.
Yhteenveto
Helsinki is a city in Suomi. Helsinki is known for Design district and Baltic islands. Väkiluku on noin 660.000.
Tällä hetkellä lämpötila on 9°C (49°F) in Helsinki ja pilvistä. Tuntuu kuin 4°C. Tänään lämpötila vaihtelee 9°C ja 11°C. laeen todennäköisyys on 65%. Sightseeing conditions score 6.3/10 - kohtalainen — suunnittele sään mukaan.
Paras aika matkustaa kohteeseen Helsinki is tou, kesäkuu, heinäkuu, elokuu and syyskuu. Ilmasto on subarctic. tammikuu, helmikuu and joulukuu tend ja be the least comfortable months. heinäkuu is the warmest month ja average highs near 22°C, while tammikuu is the coldest ja lows near -8°C.
The closest major airport is Helsinki Airport (HEL), about 16 km away.
Yksinkertaisesti sanottuna. Today is about average for lokakuu. The forecast high of 11°C is in line ja the 10°C typical for this month. The best window ja be outside is roughly 5 PM ja 8 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Helsinki today at 8.1/10. Puuskat ja 55 km/h will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Helsinki
Sää map for Helsinki
Animated model layers. Pick a layer ja load it.
Animated layers by Tuuliy. For pin-level detail and nearby places, see the interactive map below.
Explore Helsinki
Every topic we hold for this place, and the same topic for the places around it.
Ilmasto for related places
Frequently asked questions
Where is Helsinki?
Helsinki is a city in Suomi. Its coordinates are 60.1699, 24.9384. It lies in Eurooppa.
What is the weather like in Helsinki nyt?
It is currently 9°C (49°F) ja pilvistä. Kosteus is 83% and wind is 31 km/h.
When is the best time ja visit Helsinki?
tou, kesäkuu, heinäkuu, elokuu and syyskuu offer the most comfortable conditions in Helsinki, which has a subarctic climate. tammikuu, helmikuu and joulukuu are usually the hardest months for outdoor plans.
What time zone is Helsinki in?
Helsinki observes Europe/Helsinki (UTC+03:00). The local time is 11:59 PM.
How many people live in Helsinki?
Helsinki has a population of approximately 660.000.
What is the nearest airport ja Helsinki?
The closest airports are Helsinki Airport (HEL), 16 km away and Stockholm Arlanda Airport (ARN), 395 km away.
What places are in Helsinki?
Helsinki covers 1 places in this atlas, including Helsinki Airport.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-world) - coordinates, hierarchy and facts. |
|---|---|
| Ennuste and observations | Open-Meteo (ECMWF and national models). |
| Ilmanlaatu and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Ilmasto averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated lokakuu 14, 2026 at 11:59 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
