AI-generatedGiresun at a glance
- Best time
- Jul – Sep
- Warmest month
- Aug · 28°
- Warmest sea
- Aug · 25.7°
- Sunshine a year
- 1,720 h
- Rain a year
- 1,818 mm
- Climate
- Temperate
- Time zone
- UTC+3
- Elevation
- 39 m
Climate in Giresun
Giresun 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 11 °C. With around 1,720 hours of sunshine a year, Giresun is moderately sunny; June is the sunniest month with 6.7 hours a day.
Holiday weather through the year
Best time to visit Giresun
The best time to visit Giresun is from July to September. The sea reaches 25.7 °C in August, but frequent rain gets in the way of a classic beach holiday. The wettest month is October with 209 mm of precipitation.
Giresun through the seasons
How the weather changes over the seasons, with averages for each.
Giresun in spring
Mar – May
Poor
- 13–19 °C by day
- Sea 12 °C
- 4.8 h of sun a day
- 56 rainy days in all
Giresun in summer
Jun – Aug
Good
- 24–28 °C by day
- Sea 24 °C
- 6.6 h of sun a day
- 62 rainy days in all
Giresun in autumn
Sep – Nov
Poor
- 16–24 °C by day
- Sea 20 °C
- 4.6 h of sun a day
- 49 rainy days in all
Giresun in winter
Dec – Feb
Poor
- 11–13 °C by day
- Sea 11 °C
- 2.9 h of sun a day
- 43 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
Rainy season or more than 12 rainy days
Snow
Nov – Apr
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Giresun for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: July – September
Where to go in OctoberSea temperature in October
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 17°
- Midday, 13:00: about 20°
- Afternoon, 16:00: about 20°
- Evening, 20:00: about 18°
- Night, 23:00: about 17°
06:3617:48
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:19–07:13 · evening 17:11–18:05
- Blue hour
- Morning 06:09–06:19 · evening 18:05–18:15
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.
October in Giresun compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 22° at the start of the month to 18° at the end. The sea cools from 22° to 18°. The days get 1.3 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 22° | 18° |
| Night-time low | 17° | 13° |
| Sea | 22° | 18° |
| Daylight | 11.8 h | 10.5 h |
What is the weather like in Giresun in October?
In October, Giresun is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 20.1 °C – refreshing for a swim. Expect around 4.5 hours of sunshine a day. It rains often – on about 18 days, adding up to 209 mm. Snow falls on about 2 days. All in all, October is not an ideal month for a holiday in Giresun.
More details for October
- Daylight
- 11 h 11 min06:36 – 17:48
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC+3offset from UTC
How the score comes together
- Temperatureweight 35 %25 %
- Seaweight 25 %44 %
- Sunshineweight 20 %25 %
- Few rainy daysweight 20 %4 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Giresun
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Giresun: score 72 against 26. In July, days are 6 °C warmer than in October. The sea is 5 °C warmer in July. July has 2 more rainy days. The sun shines 2 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 26 | 72better |
| Daytime high | 21° | 27° |
| Night-time low | 15° | 21° |
| Sea | 20.1° | 24.6° |
| Sunshine | 4.5 h | 6.6 hbetter |
| Rainy days | 18better | 20 |
| Rainfall | 209 mm | 133 mmbetter |
| Muggy days | 0better | 18 |
Based on the climate averages 1996–2025.
Giresun month by month
The typical weather for every month at a glance.
4January11° · Sea 10° · 2.6 h
In January, Giresun is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 10.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2.6 hours a day. It rains often – on about 15 days, adding up to 127 mm. Snow falls on about 10 days. All in all, January is not an ideal month for a holiday in Giresun.
Giresun in January7February11° · Sea 9° · 3.4 h
In February, Giresun is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 8.9 °C – swimming is only for the hardy. The sun is scarce, with only about 3.4 hours a day. Rain is frequent, with about 14 rainy days and 103 mm in total. Snow falls on about 9 days. All in all, February is not an ideal month for a holiday in Giresun.
Giresun in February3March13° · Sea 9° · 3.8 h
In March, Giresun is cool: daytime highs average 13 °C, and nights cool down to about 6 °C. The sea averages 8.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.8 hours a day. It rains often – on about 18 days, adding up to 143 mm. Snow falls on about 11 days. All in all, March is not an ideal month for a holiday in Giresun.
Giresun in March7April16° · Sea 11° · 4.8 h
In April, Giresun is cool: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 10.8 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. It rains often – on about 18 days, adding up to 142 mm. Snow falls on about 5 days. All in all, April is not an ideal month for a holiday in Giresun.
Giresun in April11May19° · Sea 16° · 5.7 h
In May, Giresun is mild: daytime highs average 19 °C, and nights cool down to about 14 °C. The sea averages 15.6 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. It rains often – on about 21 days, adding up to 183 mm. All in all, May is not an ideal month for a holiday in Giresun.
Giresun in May57June24° · Sea 21° · 6.7 h
In June, Giresun is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 21.2 °C – refreshing for a swim. The sun shines for around 6.7 hours a day. It rains often – on about 20 days, adding up to 166 mm. All in all, June is a so-so month for a holiday in Giresun.
Giresun in June72July27° · Sea 25° · 6.6 h
In July, Giresun is hot: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 24.6 °C – pleasant for swimming. The sun shines for around 6.6 hours a day. It rains often – on about 20 days, adding up to 133 mm. The air is often humid and muggy. All in all, July is a good month for a holiday in Giresun.
Giresun in July72August28° · Sea 26° · 6.5 h
In August, Giresun is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 25.7 °C – pleasant for swimming. The sun shines for around 6.5 hours a day. It rains often – on about 22 days, adding up to 155 mm. The air is often humid and muggy. All in all, August is a good month for a holiday in Giresun.
Giresun in August65September24° · Sea 24° · 5.7 h
In September, Giresun is warm: daytime highs average 24 °C, and nights cool down to about 19 °C. The sea averages 23.8 °C – pleasant for swimming. Expect around 5.7 hours of sunshine a day. It rains often – on about 19 days, adding up to 202 mm. All in all, September is a good month for a holiday in Giresun.
Giresun in September26October21° · Sea 20° · 4.5 h
In October, Giresun is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 20.1 °C – refreshing for a swim. Expect around 4.5 hours of sunshine a day. It rains often – on about 18 days, adding up to 209 mm. Snow falls on about 2 days. All in all, October is not an ideal month for a holiday in Giresun.
Giresun in October10November16° · Sea 16° · 3.7 h
In November, Giresun is mild: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 16.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. Rain is frequent, with about 13 rainy days and 136 mm in total. Snow falls on about 5 days. All in all, November is not an ideal month for a holiday in Giresun.
Giresun in November6December13° · Sea 13° · 2.6 h
In December, Giresun is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sea averages 13.0 °C – swimming is only for the hardy. The sun is scarce, with only about 2.6 hours a day. Rain is frequent, with about 14 rainy days and 120 mm in total. Snow falls on about 8 days. All in all, December is not an ideal month for a holiday in Giresun.
Giresun in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Giresun
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°
- muggy month (15+ muggy days)
PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open.
The coolest nights are in February (5°), the warmest in August (22°). 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 from September to October. Nights fall below 8 °C on average from January to March, so the room should be heated. It is muggy (dew point 18 °C or more) on about 56 days a year, mostly from July to August.
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 | 4 | 11° | 6° | 10.2° | 2.6 h | 15 | 127 |
| FebruaryFeb | 7 | 11° | 5° | 8.9° | 3.4 h | 14 | 103 |
| MarchMar | 3 | 13° | 6° | 8.8° | 3.8 h | 18 | 143 |
| AprilApr | 7 | 16° | 9° | 10.8° | 4.8 h | 18 | 142 |
| MayMay | 11 | 19° | 14° | 15.6° | 5.7 h | 21 | 183 |
| JuneJun | 57 | 24° | 18° | 21.2° | 6.7 h | 20 | 166 |
| JulyJul | 72 | 27° | 21° | 24.6° | 6.6 h | 20 | 133 |
| AugustAug | 72 | 28° | 22° | 25.7° | 6.5 h | 22 | 155 |
| SeptemberSep | 65 | 24° | 19° | 23.8° | 5.7 h | 19 | 202 |
| OctoberOct | 26 | 21° | 15° | 20.1° | 4.5 h | 18 | 209 |
| NovemberNov | 10 | 16° | 11° | 16.3° | 3.7 h | 13 | 136 |
| DecemberDec | 6 | 13° | 8° | 13.0° | 2.6 h | 14 | 120 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), 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
40.92° N, 38.39° E · 39 m · Europe/Istanbul
Sea temperature in Giresun
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 19.2 – 21.2 °C
Swimming season: Jun – Oct
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Giresun ranges from 8.8 °C in March to 25.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
From November to December 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 24.6 and 26.6 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 10.2° | 9.0° | 11.4° | cold |
| FebruaryFeb | 8.9° | 7.6° | 10.1° | cold |
| MarchMar | 8.8° | 7.6° | 10.2° | cold |
| AprilApr | 10.8° | 9.7° | 12.1° | cold |
| MayMay | 15.6° | 14.4° | 16.7° | cold |
| JuneJun | 21.2° | 19.8° | 22.3° | refreshing |
| JulyJul | 24.6° | 23.4° | 25.5° | pleasant |
| AugustAug | 25.7° | 24.6° | 26.6° | pleasant |
| SeptemberSep | 23.8° | 22.8° | 24.7° | pleasant |
| OctoberOct | 20.1° | 19.2° | 21.2° | refreshing |
| NovemberNov | 16.3° | 14.9° | 17.6° | cold |
| DecemberDec | 13.0° | 11.9° | 14.5° | cold |
Sunshine hours in Giresun
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 4.5 of 11.2 hours of daylight in Giresun, 40 % of the daylight hours.
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.
Rain in Giresun: 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, Giresun has about 18 rainy days with 209 mm of rain in total.
UV index in Giresun
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 35 min
- Fair skin
- about 45 min
- Light brown skin
- about 60 min
- Olive skin
- about 80 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, 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.
Wind and clouds in Giresun
How breezy and how cloudy Giresun 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 Giresun typically peaks at 10 km/h during the day: Beaufort 2, light breeze or less.
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 66 % of the sky over Giresun: mostly cloudy, with about 4.5 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 Giresun
How often the day gets hot in Giresun (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, Giresun has about 1 hot day, with an average daytime high of 21 °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 Giresun
When Giresun is likely to be white: 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, Giresun has about 2 days with at least 1 cm of fresh snow, 6 cm in total. The chance of seeing snow during a week's stay is 21 out of 100: possible.
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.
Planning a trip to Giresun
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Giresun 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.
Giresun has its best school-holiday weather during the summer holidays (score 72) and its weakest during the Christmas holidays (score 5).
- 6
Easter holidays
Mar – Apr
Poor
- 15 °C by day
- Sea 10 °C
- 4.5 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain, Snow
- 20
May half-term
May – Jun
Poor
- 20 °C by day
- Sea 17 °C
- 5.9 h of sun a day
- 20 rainy days a month
Keep in mind: Frequent rain
- 72
Summer holidays
Jul – Aug
GoodBest holidays
- 27 °C by day
- Sea 25 °C
- 6.5 h of sun a day
- 21 rainy days a month
Keep in mind: Frequent rain
- 26
October half-term
Oct
Poor
- 21 °C by day
- Sea 20 °C
- 4.5 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain
- 5
Christmas holidays
Dec – Jan
Poor
- 12 °C by day
- Sea 12 °C
- 2.6 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 4 h 20 min
- Distance
- 3,170 km
- Time zone
- UTC+3
- 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.
Compare & alternatives
Giresun compared
Put Giresun side by side with another destination.
Giresun vs Ordu
In October Ordu has the better holiday weather (score 31 vs 26). During the day it is about as warm in Ordu as in Giresun. The sea is about equally warm. Ordu gets one hour less sunshine a day.
| in October | Giresun | Ordu |
|---|---|---|
| Holiday weather score | 26 | 31 |
| Daytime high | 21° | 21° |
| Sea | 20° | 20° |
| Sunshine | 5 h | 4 h |
| Rainy days | 18 | 14 |
| Best time | Jul – Sep | May – Nov |
Through the year
Turkey in October: the best places
In October, Giresun ranks 30 among the 31 nearest destinations in this country.
- Malatya22°95
- 2Kahramanmaraş27°93
- 3Adıyaman27°92
- 4Diyarbakır26°92
- 5Göreme21°91
- 6Kayseri21°90
- 7Yozgat18°88
- 8Hattusa20°88
- 30GiresunThis page21°20°26
Near Giresun
Other destinations close by.
Places with a climate like Giresun
Destinations whose weather through the year is closest to Giresun's – good alternatives.
Frequently asked questions about Giresun
When is the best time to visit Giresun?
The best time to visit Giresun is from July to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Giresun?
The sea temperature in Giresun ranges from 8.8 °C in March to 25.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
Can you swim in Giresun in October?
Yes. In October the sea averages 20.1 °C – refreshing for a swim.
What is the warmest month in Giresun?
August is the warmest month, with average highs of 28 °C and nights around 22 °C. January is the coolest month at 11 °C.
When does it rain most in Giresun?
The wettest month is October with 209 mm of precipitation. The driest month is February with 103 mm.
How many hours of sunshine does Giresun get?
Giresun gets around 1,720 hours of sunshine a year. The sunniest month is June with 6.7 hours a day; in January there are 2.6 hours a day.
What time zone is Giresun in?
Giresun is on UTC+3 all year.
How long is the flight from London to Giresun?
A nonstop flight from London to Giresun takes about 4 h 20 min, for a straight-line distance of about 3,170 km.
Which school holidays are best for Giresun?
Giresun has its best school-holiday weather during the summer holidays (score 72) and its weakest during the Christmas holidays (score 5). Holiday ratings (0–100): Easter holidays 6, May half-term 20, summer holidays 72, October half-term 26, Christmas holidays 5.