VanSky

Estonia Viljandi

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Weather and VanSky index

Viljandi, Estonia — weather and VanSky index

Regional capital · Viljandi County, Estonia

10°

Rain day 12° · night 8°

Rain expected, output ~0.2 kWh — charge up early and conserve power.
Gusts up to 42 km/h — open awning with caution and watch the forecast.
High condensation risk — ventilate before sleep and leave a small gap in the roof vent.

Wind 17 km/h Precip 2.4 mm Feels like 8° Humidity 89% Sunrise 07:19 Sunset 16:44 Solar 0.2 kWh Dew point 8° Air AQI 24

VanSky Indextravel comfort how it works

Today 52/100 Acceptable

Week 47/100 Acceptable

Index by day- - - Week 47

52today 65tu 48we 34th 60fr 60sa 49su

A so-so week Comfortable days: 3 of 7. Low point: th 29 Oct (34, rain).

Viljandi this week

Viljandi: the VanSky index for 26 Oct – 1 Nov is 47 out of 100, “Acceptable”.
Comfortable days: 3 of 7.
Low point: th 29 Oct (34, rain).
Today: 52 out of 100 (acceptable).
Forecast updated 26 Oct, 06:20 UTC.

Daily forecast

The week is close to normal for these dates · tap a day for details

80+ ideal 60–79 comfortable 40–59 acceptable 20–39 challenging 0–19 extreme

00:00 12° Rain 59 0.4 mm

03:00 11° Cloudy 58 0.4 mm

06:00 11° Rain 56 0.8 mm

09:00 10° Rain 55 0.7 mm

12:00 10° Cloudy 59 0.1 mm

15:00 10° Cloudy 61 0.0 mm

18:00 9° Cloudy 59 0.0 mm

21:00 8° Cloudy 58 0.0 mm

Index 52 · acceptable — what it is made of Weighted 52, adjustments +0 (night, extremes, sea, air) → 52 · how it works

Thermal comfort 35% 58

Sunshine 25% 24

Precipitation 25% 46

Wind 15% 96

Viljandi on map

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Weather and index by day of year

2021–2025 archive

26 October 9° / 5°

Rain sometimes Rain or snow on 13 of 35 archive days

October · average days

4 clear

7 partly cloudy

10 overcast

10 with rain or snow

≈ kWh

9° / 5°

day night

Best time to visit June Within 5 points of the highest-scoring month

This week · daily average

53 vs usual 41 +12

Daytime average 9° · usual 9° ≈

12 better than usual for these dates. Tiles: the forecast next to the usual weather for that date — sky, day/night temperature, index; the difference below.

Today 26 Oct

forecast 12°/8° 52

usual 9°/5° 40

▲ 12 +3°

tu 27 Oct

forecast 10°/7° 65

usual 9°/5° 40

▲ 25 +1°

we 28 Oct

forecast 8°/5° 48

usual 9°/5° 39

▲ 9 −1°

th 29 Oct

forecast 8°/5° 34

usual 10°/5° 42

▼ 8 −2°

fr 30 Oct

forecast 8°/6° 60

usual 9°/5° 43

▲ 17 −1°

sa 31 Oct

forecast 9°/6° 60

usual 9°/5° 43

▲ 17 ≈

su 1 Nov

forecast 7°/4° 49

usual 9°/5° 39

▲ 10 −2°

Climate: ERA5, Copernicus Climate Change Service (C3S).

Where the week is better

26 Oct – 1 Nov · weekly average

#	City	Index
1	Tallinn 10° / 8° 1 day of rain 0.2 kWh	56
2	Keila 10° / 7° 2 days of rain 0.3 kWh	56
3	Nõmme 10° / 7° 1 day of rain 0.2 kWh	55
4	Kuressaare 11° / 7° 1 day of rain 0.4 kWh	54
5	Haapsalu 10° / 8° 2 days of rain 0.3 kWh	54
6	Maardu 10° / 8° 1 day of rain 0.2 kWh	52
7	Pärnu 10° / 7° 2 days of rain 0.2 kWh	51
…	Viljandi 9° / 6° 3 days of rain 0.2 kWh	47

#	City	Index by day	Index
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City	Index by day	Index
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City	Index by day	Index
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All cities: Estonia

Frequently Asked Questions

The weekly VanSky index for Viljandi is 47 out of 100. It is the average of the daily scores, adjusted for swings in the weather: the more uneven the week, the lower the score. Above 60 means comfortable conditions for staying, below 40 means it is worth looking elsewhere. The 7-day forecast is further up this page.

Today a 500 W panel setup will produce about 0.2 kWh in Viljandi. The estimate uses the cloud forecast and the length of daylight. Set your own panel power with the “My panels” control at the top of the page and the figures will update.

The daily score for Viljandi combines thermal comfort (temperature and humidity) at 35%, sunshine at 25%, precipitation at 25% and wind at 15%. Frost, storms, extreme heat or heavy rain pull the day's score down sharply. The weekly score is the daily average, adjusted for swings in the weather.

VanSky Index

A weather comfort index for travel: a 0–100 score. Recalculated daily from live weather data — temperature, rainfall, wind and sun.

80–100Ideal

60–79Comfortable

40–59Acceptable

20–39Challenging

0–19Extreme

How it's calculated:

Thermal comfort 35% — temperature + humidity

Sunshine 25% — panel charge, mood; in heat the sun is no longer a bonus

Precipitation 25% — rain → muddy ground

Wind 15% — awning, driving, noise

Extremes override all: frost, heat, storm, downpour

Heat counts by feels-like temperature: at 32°+ the score can’t reach “Comfortable”, muggy nights lower it further

A dangerous day drags the week down: a storm or downpour in the forecast keeps the week from being “Comfortable”

Bonus: warm sea, high panel output

Data: Open-Meteo · Updated several times a day

VanSky index for Viljandi, Estonia — 47 out of 100 (Acceptable). Decide in seconds: temperature, precipitation, wind and solar output. Data refreshed several times a day from real weather observations. Forecast updated 26 Oct, 06:20 UTC.