AI-generatedSenj at a glance
- Best time
- Jun – Aug
- Warmest month
- Aug · 28°
- Warmest sea
- Aug · 24.0°
- Sunshine a year
- 2,310 h
- Rain a year
- 1,347 mm
- Climate
- Temperate
- Time zone
- UTC+1 / UTC+2
- Elevation
- 18 m
Climate in Senj
Senj has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 28 °C, while January is the coolest at 8 °C. With around 2,310 hours of sunshine a year, Senj is sunny; July is the sunniest month with 10.0 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: June – August
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 13°
- Midday, 13:00: about 17°
- Afternoon, 16:00: about 18°
- Evening, 20:00: about 15°
- Night, 23:00: about 14°
07:1418:18
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:56–07:54 · evening 17:38–18:36
- Blue hour
- Morning 06:45–06:56 · evening 18:36–18:47
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Senj in October?
In October, Senj is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 19.2 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 145 mm in total. All in all, October is not an ideal month for a holiday in Senj.
More details for October
- Daylight
- 11 h 3 min07:14 – 18:18
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Zagreb
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %31 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 20 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Sea temperature in Senj
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 17.9 – 20.1 °C
Swimming season: Jun – Sep
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Senj ranges from 11.3 °C in February to 24.0 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to September.
From October to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 22.7 and 25.5 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 12.3° | 11.4° | 13.7° | cold |
| FebruaryFeb | 11.3° | 10.1° | 12.6° | cold |
| MarchMar | 11.4° | 10.4° | 12.5° | cold |
| AprilApr | 13.2° | 12.4° | 14.2° | cold |
| MayMay | 17.1° | 16.1° | 18.4° | fresh |
| JuneJun | 21.3° | 20.1° | 22.7° | refreshing |
| JulyJul | 23.8° | 22.8° | 25.1° | pleasant |
| AugustAug | 24.0° | 22.7° | 25.5° | pleasant |
| SeptemberSep | 21.7° | 20.3° | 23.2° | refreshing |
| OctoberOct | 19.2° | 17.9° | 20.1° | fresh |
| NovemberNov | 16.7° | 15.4° | 17.9° | cold |
| DecemberDec | 14.1° | 13.1° | 15.2° | cold |
Sunshine hours in Senj
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.2 of 11.1 hours of daylight in Senj, 47 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Senj
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 9).
Minutes until sunburn in October
- Very fair skin
- about 45 min
- Fair skin
- about 55 min
- Light brown skin
- about 75 min
- Olive skin
- about 100 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Senj: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Senj has about 12 rainy days with 145 mm of rain in total.
Wind and clouds in Senj
How breezy and how cloudy Senj is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Senj typically peaks at 16 km/h during the day: Beaufort 3, light breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 58 % of the sky over Senj: variable cloud, with about 5.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Senj
How often the day gets hot in Senj (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Senj has about 0 hot days, with an average daytime high of 18 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Senj
Snow is possible in Senj, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Senj.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Senj
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
CoolOctober: nights around 12°. A duvet at night and a jumper for the evening.
The coolest nights are in January (2°), the warmest in July (20°). Tropical nights of 20 °C and more are the rule from July to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in June and in September. Nights fall below 8 °C on average from December to March, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 9 | 8° | 2° | 12.3° | 3.4 h | 13 | 121 |
| FebruaryFeb | 16 | 9° | 2° | 11.3° | 4.8 h | 11 | 110 |
| MarchMar | 19 | 12° | 5° | 11.4° | 5.9 h | 11 | 100 |
| AprilApr | 21 | 16° | 9° | 13.2° | 6.6 h | 12 | 97 |
| MayMay | 33 | 20° | 13° | 17.1° | 8.1 h | 12 | 106 |
| JuneJun | 83 | 25° | 17° | 21.3° | 9.2 h | 9 | 62 |
| JulyJul | 94 | 28° | 20° | 23.8° | 10.0 h | 7 | 58 |
| AugustAug | 95 | 28° | 20° | 24.0° | 9.6 h | 8 | 70 |
| SeptemberSep | 61 | 23° | 15° | 21.7° | 6.8 h | 11 | 143 |
| OctoberOct | 24 | 18° | 12° | 19.2° | 5.2 h | 12 | 145 |
| NovemberNov | 7 | 13° | 8° | 16.7° | 3.2 h | 14 | 188 |
| DecemberDec | 7 | 9° | 4° | 14.1° | 3.0 h | 13 | 150 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
44.99° N, 14.91° E · 18 m · Europe/Zagreb
Best time to visit Senj
The best time to visit Senj is from June to August. For a beach holiday with the sea above 21 °C, go from June to August. For sightseeing, day trips and hiking, conditions are most comfortable in April and from June to October. Rain is most frequent in May and from November to January; the wettest month is November with 188 mm.
Senj through the seasons
How the weather changes over the seasons, with averages for each.
Senj in spring
Mar – May
Poor
- 12–20 °C by day
- Sea 14 °C
- 7 h of sun a day
- 35 rainy days in all
Senj in summer
Jun – Aug
Excellent
- 25–28 °C by day
- Sea 23 °C
- 10 h of sun a day
- 24 rainy days in all
Senj in autumn
Sep – Nov
Poor
- 13–23 °C by day
- Sea 19 °C
- 5 h of sun a day
- 36 rainy days in all
Senj in winter
Dec – Feb
Poor
- 8–9 °C by day
- Sea 13 °C
- 4 h of sun a day
- 37 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Senj for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Senj
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Senj: score 95 against 24. In August, days are 10 °C warmer than in October. The sea is 5 °C warmer in August. August has 4 fewer rainy days. The sun shines 4 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 24 | 95better |
| Day high | 18° | 28° |
| Night low | 12° | 20° |
| Sea | 19.2° | 24.0° |
| Sunshine | 5.2 h | 9.6 hbetter |
| Rainy days | 12 | 8better |
| Rainfall | 145 mm | 70 mmbetter |
| Muggy days | 0better | 10 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Jun – Aug
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr, Jun – Oct
15–28 °C and not too much rain
Rainy months
May, Nov – Jan
12 or more rainy days
Snow
Dec – Feb
Snow on 2 or more days
Senj month by month
The typical weather for every month at a glance.
9January8° · Sea 12° · 3 h
In January, Senj is cold: daytime highs average 8 °C, and nights cool down to about 2 °C. The sea averages 12.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 13 rainy days and 121 mm in total. Snow falls on about 3 days. All in all, January is not an ideal month for a holiday in Senj.
Senj in January16February9° · Sea 11° · 5 h
In February, Senj is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sea averages 11.3 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 110 mm in total. Snow falls on about 3 days. All in all, February is not an ideal month for a holiday in Senj.
Senj in February19March12° · Sea 11° · 6 h
In March, Senj is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 11.4 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 100 mm in total. Snow falls on about 2 days. All in all, March is not an ideal month for a holiday in Senj.
Senj in March21April16° · Sea 13° · 7 h
In April, Senj is mild: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 13.2 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 97 mm in total. All in all, April is not an ideal month for a holiday in Senj.
Senj in April33May20° · Sea 17° · 8 h
In May, Senj is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 17.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 106 mm in total. All in all, May is not an ideal month for a holiday in Senj.
Senj in May83June25° · Sea 21° · 9 h
In June, Senj is warm: daytime highs average 25 °C, and nights cool down to about 17 °C. The sea averages 21.3 °C – refreshing for a swim. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 9 days, adding up to 62 mm. All in all, June is an excellent month for a holiday in Senj.
Senj in June94July28° · Sea 24° · 10 h
In July, Senj is hot: daytime highs average 28 °C, and nights cool down to about 20 °C. The sea averages 23.8 °C – pleasant for swimming. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 58 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Senj.
Senj in July95August28° · Sea 24° · 10 h
In August, Senj is hot: daytime highs average 28 °C, and nights cool down to about 20 °C. The sea averages 24.0 °C – pleasant for swimming. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 70 mm. On about 8 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Senj.
Senj in August61September23° · Sea 22° · 7 h
In September, Senj is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sea averages 21.7 °C – refreshing for a swim. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 143 mm in total. All in all, September is a good month for a holiday in Senj.
Senj in September24October18° · Sea 19° · 5 h
In October, Senj is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 19.2 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 145 mm in total. All in all, October is not an ideal month for a holiday in Senj.
Senj in October7November13° · Sea 17° · 3 h
In November, Senj is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sea averages 16.7 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 14 rainy days and 188 mm in total. Snow falls on about 2 days. All in all, November is not an ideal month for a holiday in Senj.
Senj in November7December9° · Sea 14° · 3 h
In December, Senj is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sea averages 14.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 13 rainy days and 150 mm in total. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Senj.
Senj in DecemberSenj compared
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Senj vs. Krk
In October the holiday weather in Senj and Krk is about equally good (score 24 vs. 24). During the day it is about as warm in Krk as in Senj. The sea is about equally warm.
| in October | Senj | Krk |
|---|---|---|
| Holiday score | 24 | 24 |
| Daytime high | 18° | 18° |
| Sea | 19° | 19° |
| Sunshine | 5 h | 5 h |
| Rainy days | 12 | 12 |
| Best time | Jun – Aug | Jun – Aug |
Through the year
Croatia in October: the best places
In October, Senj ranks 24 among the 31 nearest destinations in this country.
- Knin19°78
- 2Motovun17°70
- 3Karlovac17°68
- 4Zagreb17°68
- 5Varaždin16°68
- 6Trogir20°21°42
- 7Vis20°21°42
- 8Makarska20°21°39
- 24SenjThis page18°19°24
Planning a trip to Senj
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Senj in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Senj has its best school-holiday weather during the summer holidays (score 95) and its weakest during the Christmas holidays (score 8).
- 20
Easter holidays
Mar – Apr
Poor
- 15 °C by day
- Sea 13 °C
- 6.4 h of sun a day
- 12 rainy days a month
- 43
May half-term
May – Jun
Fair
- 21 °C by day
- Sea 18 °C
- 8.3 h of sun a day
- 11 rainy days a month
Keep in mind: Frequent rain
- 95
Summer holidays
Jul – Aug
ExcellentBest holidays
- 28 °C by day
- Sea 24 °C
- 9.7 h of sun a day
- 8 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 24
October half-term
Oct
Poor
- 18 °C by day
- Sea 19 °C
- 5.2 h of sun a day
- 12 rainy days a month
Good for: Sightseeing & walks
- 8
Christmas holidays
Dec – Jan
Poor
- 8 °C by day
- Sea 13 °C
- 3.2 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 2 h 5 min
- Distance
- 1,340 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Senj
When is the best time to visit Senj?
The best time to visit Senj is from June to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Senj?
The sea temperature in Senj ranges from 11.3 °C in February to 24.0 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to September.
Can you swim in Senj in October?
Only if you don't mind cold water: in October the sea averages just 19.2 °C. Comfortable swimming is possible from June to September.
What is the warmest month in Senj?
August is the warmest month, with average highs of 28 °C and nights around 20 °C. January is the coolest month at 8 °C.
When does it rain most in Senj?
Rain is most frequent in May and from November to January; the wettest month is November with 188 mm. The driest month is July with 58 mm.
How many hours of sunshine does Senj get?
Senj gets around 2,310 hours of sunshine a year. The sunniest month is July with 10.0 hours a day; in December there are 3.0 hours a day.
What time zone is Senj in?
Senj uses the time zone Europe/Zagreb: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Senj?
A nonstop flight from London to Senj takes about 2 h 5 min, for a straight-line distance of about 1,340 km.
Which school holidays are best for Senj?
Senj has its best school-holiday weather during the summer holidays (score 95) and its weakest during the Christmas holidays (score 8). Holiday ratings (0–100): Easter holidays 20, May half-term 43, Summer holidays 95, October half-term 24, Christmas holidays 8.
Near Senj
Other destinations close by.
Places with a climate like Senj
Destinations whose weather through the year is closest to Senj's – good alternatives.