Weather forecast for 10 daysPorvoo, Finland

Weather forecast for the weekend

Saturday 17. Oct 2026

  • 12°C
  • 0°C
Drizzle
Drizzle
  • Precip. probability: 30%
  • Precipitation: 0mm
  • Wind: 20km/hNNW 347°
  • Humidity: 86%
  • UV index: 0
  • Sunrise: 08:02 EEST
  • Sunset: 18:02 EEST
  • ▼
Today, fine mist and drizzle will keep the air moist.
Minimal precipitation is expected. Predicted temperatures will peak at a cool 12°C and dip to a minimum of a cold 0°C.
Sunrise was at 08:02 and sunset will be at 18:02; the daylight will last for 10h and 0min.

Sunday 18. Oct 2026

  • 9°C
  • -1°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 13km/hNNW 343°
  • Humidity: 79%
  • UV index: 1
  • Sunrise: 08:05 EEST
  • Sunset: 17:59 EEST
  • ▼
On Sunday, in Porvoo, expect plenty of sunshine and only a few scattered clouds.
Rainfall is not forecasted for tomorrow. Temperature span will be from a high of a frosty 9°C to a low of a subzero -1°C.
Sunrise will be at 08:05 and sunset at 17:59; tomorrow's daylight will last for 9h and 55min.

10-day overview

Daily temperatures

Warmest day: today 12°C.
Coldest day: tomorrow 9°C.

Chance of precipitation

Highest chance: Thursday 56%.

Long-term weather forecast

  • Saturday
  • 17. Oct 2026
  • 12°C
  • 0°C
Drizzle
Drizzle
  • Precip. probability: 30%
  • Precipitation: 0mm
  • Wind: 20km/hNNW 347°
  • Humidity: 86%
  • UV index: 0
  • Sunrise: 08:02 EEST
  • Sunset: 18:02 EEST
  • ▼
  • Sunday
  • 18. Oct 2026
  • 9°C
  • -1°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 13km/hNNW 343°
  • Humidity: 79%
  • UV index: 1
  • Sunrise: 08:05 EEST
  • Sunset: 17:59 EEST
  • ▼
  • Monday
  • 19. Oct 2026
  • 10°C
  • 1°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 8km/hESE 119°
  • Humidity: 82%
  • UV index: 1
  • Sunrise: 08:07 EEST
  • Sunset: 17:56 EEST
  • ▼
  • Tuesday
  • 20. Oct 2026
  • 10°C
  • 4°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 13km/hESE 112°
  • Humidity: 81%
  • UV index: 1
  • Sunrise: 08:10 EEST
  • Sunset: 17:53 EEST
  • ▼
  • Wednesday
  • 21. Oct 2026
  • 10°C
  • 8°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 1mm
  • Wind: 18km/hESE 105°
  • Humidity: 87%
  • UV index: 1
  • Sunrise: 08:12 EEST
  • Sunset: 17:51 EEST
  • ▼
  • Thursday
  • 22. Oct 2026
  • 11°C
  • 10°C
Showers
Showers
  • Precip. probability: 56%
  • Precipitation: 7mm
  • Wind: 20km/hSE 131°
  • Humidity: 89%
  • UV index: 0
  • Sunrise: 08:15 EEST
  • Sunset: 17:48 EEST
  • ▼
  • Friday
  • 23. Oct 2026
  • 11°C
  • 7°C
Showers
Showers
  • Precip. probability: 53%
  • Precipitation: 4mm
  • Wind: 17km/hSSE 164°
  • Humidity: 92%
  • UV index: 0
  • Sunrise: 08:17 EEST
  • Sunset: 17:45 EEST
  • ▼
  • Saturday
  • 24. Oct 2026
  • 11°C
  • 8°C
Few Showers
Few Showers
  • Precip. probability: 35%
  • Precipitation: 2mm
  • Wind: 15km/hSSE 159°
  • Humidity: 90%
  • UV index: 0
  • Sunrise: 08:20 EEST
  • Sunset: 17:42 EEST
  • ▼
  • Sunday
  • 25. Oct 2026
  • 11°C
  • 8°C
AM Showers
AM Showers
  • Precip. probability: 37%
  • Precipitation: 1mm
  • Wind: 18km/hS 180°
  • Humidity: 89%
  • UV index: 0
  • Sunrise: 07:23 EET
  • Sunset: 16:39 EET
  • ▼
  • Monday
  • 26. Oct 2026
  • 10°C
  • 8°C
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 4mm
  • Wind: 21km/hS 179°
  • Humidity: 89%
  • UV index: 1
  • Sunrise: 07:25 EET
  • Sunset: 16:36 EET
  • ▼
Over the next ten days, a mix of rain-soaked, dry and sunny and cloud-filled weather is predicted.
Rainfall is anticipated on Wednesday through next Monday.
Temperature variation will be minimal throughout the coming week. Expected highs will hover between 9°C and 12°C, while the fluctuation in night temperatures will be significant, as temperatures overnight will fluctuate from -1°C up to 10°C.
With a high of 12°C, today is the warmest day; with the highest temperature of 9°C, Sunday will be the coldest day.
Updated: Oct 17, 2026 @ 10:27:02 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Porvoo, mist and drizzle will create a damp atmosphere.

Today, there is a low probability of minimal rainfall in Porvoo.

Today, the highest temperature will be 12°C, while the lowest temperature will be 0°C.
The maximum temperature will be notably higher than the average highest temperature of 0°C in October. The lowest temperature will be in line with the average low of 0°C.

On Saturday, in Porvoo, sunrise was at 08:02 and sunset will be at 18:02 (EEST).

In Porvoo, today, there will be 10h and 0min of daylight.

On Sunday, expect plenty of sunshine and only a few scattered clouds.

No, it will not rain tomorrow.

Tomorrow, the highest temperature will be 9°C, while the lowest temperature will be -1°C.
The maximum temperature will be notably higher than the average highest temperature of 0°C in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Porvoo, sunrise will be at 08:05 and sunset at 17:59 (EEST).

Tomorrow, the daylight will last for 9h and 55min.