Best time to visit Ylläs
Month-by-month weather averages for Ylläs.
Ylläs, Lapland, Finland
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | -9 °C / 16 °F | -14.9 °C / 5 °F | 33 mm / 1.3 in | neither best nor good |
| February | -7.9 °C / 18 °F | -13.8 °C / 7 °F | 27 mm / 1.1 in | neither best nor good |
| March | -2.1 °C / 28 °F | -10.1 °C / 14 °F | 26 mm / 1 in | neither best nor good |
| April | 3.6 °C / 38 °F | -4.4 °C / 24 °F | 32 mm / 1.3 in | neither best nor good |
| May | 10.3 °C / 51 °F | 1.7 °C / 35 °F | 52 mm / 2 in | neither best nor good |
| June | 15.8 °C / 60 °F | 7.7 °C / 46 °F | 78 mm / 3.1 in | good month |
| July | 18.9 °C / 66 °F | 10.6 °C / 51 °F | 89 mm / 3.5 in | good month |
| August | 16.7 °C / 62 °F | 8.5 °C / 47 °F | 81 mm / 3.2 in | good month |
| September | 11 °C / 52 °F | 4.4 °C / 40 °F | 68 mm / 2.7 in | neither best nor good |
| October | 2.6 °C / 37 °F | -2.2 °C / 28 °F | 61 mm / 2.4 in | neither best nor good |
| November | -3.5 °C / 26 °F | -8.4 °C / 17 °F | 47 mm / 1.9 in | neither best nor good |
| December | -5.9 °C / 21 °F | -11.5 °C / 11 °F | 44 mm / 1.7 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: good
- JJuly: good
- AAugust: good
- SSeptember: neither
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Good
- June–August
Why these months
June · good
In its favour: share of daylight that is sunny 58%, precipitation 78 mm / 3.1 in, feels like (high) 13.2 °C / 56 °F, average daily high 15.8 °C / 60 °F, days with heavy rain 2.1 days, relative humidity 65%, average daily low 7.7 °C / 46 °F.
Against: wet days 12.5 days.
July · good
In its favour: feels like (high) 17.5 °C / 64 °F, average daily high 18.9 °C / 66 °F, share of daylight that is sunny 56%, precipitation 89 mm / 3.5 in, days with heavy rain 2.9 days, average daily low 10.6 °C / 51 °F, relative humidity 72%.
Against: wet days 13.7 days.
August · good
In its favour: feels like (high) 15 °C / 59 °F, share of daylight that is sunny 57%, average daily high 16.7 °C / 62 °F, precipitation 81 mm / 3.2 in, days with heavy rain 2.2 days, average daily low 8.5 °C / 47 °F.
Against: wet days 13.1 days, relative humidity 79%.
Hiking and trekking
Cool enough to climb in, dry enough to enjoy, long enough days.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: best
- JJune: best
- JJuly: best
- AAugust: best
- SSeptember: best
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Best
- May–September
Why these months
May · best
In its favour: precipitation 52 mm / 2 in, average daily high 10.3 °C / 51 °F, days with heavy rain 1.2 days, share of daylight that is sunny 63%, daylight per day 20.5 h, wet days 10.6 days, average daily low 1.7 °C / 35 °F, wind (daily max) 15 km/h / 10 mph, feels like (high) 6.6 °C / 44 °F.
June · best
In its favour: average daily high 15.8 °C / 60 °F, precipitation 78 mm / 3.1 in, days with heavy rain 2.1 days, feels like (high) 13.2 °C / 56 °F, average daily low 7.7 °C / 46 °F, share of daylight that is sunny 58%, daylight per day 24 h, wet days 12.5 days, wind (daily max) 15 km/h / 9 mph.
July · best
In its favour: average daily high 18.9 °C / 66 °F, precipitation 89 mm / 3.5 in, feels like (high) 17.5 °C / 64 °F, average daily low 10.6 °C / 51 °F, share of daylight that is sunny 56%, daylight per day 22.4 h, days with heavy rain 2.9 days, wind (daily max) 14 km/h / 9 mph.
Against: wet days 13.7 days.
August · best
In its favour: average daily high 16.7 °C / 62 °F, precipitation 81 mm / 3.2 in, days with heavy rain 2.2 days, feels like (high) 15 °C / 59 °F, average daily low 8.5 °C / 47 °F, share of daylight that is sunny 57%, daylight per day 17.2 h, wind (daily max) 14 km/h / 9 mph.
Against: wet days 13.1 days.
September · best
In its favour: average daily high 11 °C / 52 °F, precipitation 68 mm / 2.7 in, days with heavy rain 2 days, average daily low 4.4 °C / 40 °F, daylight per day 13.2 h, wet days 10.7 days, share of daylight that is sunny 46%, feels like (high) 8.4 °C / 47 °F, wind (daily max) 15 km/h / 10 mph.
Skiing and snow
Wants cold and snowfall; sunshine barely matters.
- JJanuary: best
- FFebruary: best
- MMarch: best
- AApril: best
- MMay: neither
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: neither
- OOctober: best
- NNovember: best
- DDecember: best
- Best
- October–April
Why these months
January · best
In its favour: snowfall 26 cm / 10.4 in, average daily high -9 °C / 16 °F, days with snow 17.6 days, average daily low -14.9 °C / 5 °F, wind (daily max) 15 km/h / 9 mph.
Against: daylight per day 3.6 h.
February · best
In its favour: average daily high -7.9 °C / 18 °F, snowfall 22 cm / 8.7 in, days with snow 16.4 days, average daily low -13.8 °C / 7 °F, wind (daily max) 15 km/h / 9 mph, daylight per day 7.9 h.
March · best
In its favour: average daily high -2.1 °C / 28 °F, snowfall 21 cm / 8.2 in, days with snow 16.2 days, average daily low -10.1 °C / 14 °F, wind (daily max) 16 km/h / 10 mph, daylight per day 11.8 h.
April · best
In its favour: snowfall 20 cm / 8 in, days with snow 13.8 days, average daily high 3.6 °C / 38 °F, average daily low -4.4 °C / 24 °F, wind (daily max) 15 km/h / 10 mph, daylight per day 15.7 h.
October · best
In its favour: average daily high 2.6 °C / 37 °F, days with snow 10.2 days, snowfall 19 cm / 7.4 in, average daily low -2.2 °C / 28 °F, wind (daily max) 15 km/h / 9 mph, daylight per day 9.3 h.
November · best
In its favour: snowfall 29 cm / 11.5 in, average daily high -3.5 °C / 26 °F, days with snow 17.1 days, average daily low -8.4 °C / 17 °F, wind (daily max) 15 km/h / 9 mph.
Against: daylight per day 5.2 h.
December · best
In its favour: snowfall 33 cm / 13.1 in, average daily high -5.9 °C / 21 °F, days with snow 20.4 days, average daily low -11.5 °C / 11 °F, wind (daily max) 15 km/h / 9 mph.
Against: daylight per day 0.9 h.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Ylläs, 2 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | -14 °C | -12.8 °C | -6.7 °C | -0.8 °C | 6.6 °C | 13.2 °C | 17.5 °C | 15 °C | 8.4 °C | -1 °C | -7.8 °C | -10.6 °C |
| Days with heavy rain | 0.3 days | 0.2 days | 0.1 days | 0.7 days | 1.2 days | 2.1 days | 2.9 days | 2.2 days | 2 days | 1.6 days | 0.6 days | 0.1 days |
| Time rain usually falls | 4 pm | 12 am | 7 am | 4 pm | 4 pm | 6 pm | 5 pm | 6 pm | 6 pm | 3 am | 8 pm | 1 am |
| Sunshine per day | 0.5 h | 2.6 h | 7 h | 10.2 h | 13 h | 13.9 h | 12.7 h | 9.8 h | 6 h | 3.2 h | 0.9 h | 0 h |
| Relative humidity | 87% | 87% | 79% | 72% | 66% | 65% | 72% | 79% | 84% | 90% | 92% | 90% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 0.8 µg/m³ | 1 µg/m³ | 1.8 µg/m³ | 3.9 µg/m³ | 3.9 µg/m³ | 5.5 µg/m³ | 4.1 µg/m³ | 3.5 µg/m³ | 2.2 µg/m³ | 1.1 µg/m³ | 0.7 µg/m³ | 0.9 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 1.5 µg/m³ | 2.1 µg/m³ | 3.2 µg/m³ | 7.3 µg/m³ | 7.4 µg/m³ | 11.1 µg/m³ | 7.6 µg/m³ | 6.2 µg/m³ | 4.4 µg/m³ | 2.5 µg/m³ | 1.3 µg/m³ | 1.8 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.