Giresun weather in September
In September, Giresun sees average daytime highs of 23°C and overnight lows near 18°C, with 176 mm of rain across 14.6 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 31% of the time in September, and the air most often feels humid.
Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Giresun's 4th-clearest and 10th-windiest month. For the whole year in context, see Giresun's year-round climate.
- Daytime high
- 23°
- 3rd warmest
- Overnight low
- 18°
- 10th coldest
- Rainfall
- 176 mm
- 14.6 wet days
- Daylight
- 12 h 18 min
- 5:13 AM – 5:29 PM
- Cloud cover
- 55%
- 4th clearest
- Wind
- 8 km/h
- 10th windiest
- Solar energy
- 4.12 kWh/m²
- Travel score
- 6.1
- out of 10
Giresun is central district and city in Giresun Province, Turkey.
- Air quality
- Elevated
- PM2.5 21.8 µg/m³ · 2019
- Density
- 396/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 24°C in the first days to 21°C by the end.
A typical September day in Giresun reaches about 23°C in the afternoon and slips back to 18°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, September runs about 3°C cooler than August and about 3°C warmer than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 20 |
| 2 | 24 | 20 |
| 3 | 24 | 20 |
| 4 | 24 | 20 |
| 5 | 24 | 19 |
| 6 | 24 | 19 |
| 7 | 24 | 19 |
| 8 | 23 | 19 |
| 9 | 23 | 19 |
| 10 | 23 | 19 |
| 11 | 23 | 19 |
| 12 | 23 | 19 |
| 13 | 23 | 19 |
| 14 | 23 | 19 |
| 15 | 23 | 18 |
| 16 | 23 | 18 |
| 17 | 23 | 18 |
| 18 | 23 | 18 |
| 19 | 22 | 18 |
| 20 | 22 | 18 |
| 21 | 22 | 18 |
| 22 | 22 | 18 |
| 23 | 22 | 18 |
| 24 | 22 | 18 |
| 25 | 22 | 17 |
| 26 | 22 | 17 |
| 27 | 22 | 17 |
| 28 | 22 | 17 |
| 29 | 21 | 17 |
| 30 | 21 | 17 |
Giresun weather by month
How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 9° / 5° | 132 | 15.6 | 5.4 | 9.4 | 1.6 |
| Feb | 9° / 5° | 98 | 13.6 | 5.2 | 10.4 | 1.6 |
| Mar | 11° / 6° | 119 | 15.8 | 3.3 | 11.7 | 2.4 |
| Apr | 14° / 9° | 106 | 14.2 | 0.2 | 13.1 | 3.9 |
| May | 18° / 14° | 110 | 13.8 | 0 | 14.3 | 5.5 |
| Jun | 22° / 18° | 99 | 12.4 | 0 | 14.9 | 6.5 |
| Jul | 25° / 21° | 82 | 12.1 | 0 | 14.6 | 6.8 |
| Aug | 25° / 21° | 102 | 13.8 | 0 | 13.6 | 6.4 |
| Sep | 23° / 18° | 176 | 14.6 | 0 | 12.3 | 6.1 |
| Oct | 19° / 15° | 213 | 16.2 | 0 | 10.9 | 5.4 |
| Nov | 15° / 11° | 149 | 12.8 | 0.5 | 9.7 | 4.3 |
| Dec | 11° / 7° | 131 | 14.7 | 2.4 | 9.1 | 2.5 |
Cloud cover in September
The sky is clear or mostly clear about 31% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 48%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 57 | 57 | 56 | 55 | 54 | 54 | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 50 | 51 | 50 | 50 | 51 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 51 | 51 |
| Cloudier (%) | 43 | 43 | 44 | 45 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 48 | 48 | 49 | 49 | 49 | 50 | 49 | 50 | 50 | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 57 | 43 |
| 2 | 57 | 43 |
| 3 | 56 | 44 |
| 4 | 55 | 45 |
| 5 | 54 | 46 |
| 6 | 54 | 46 |
| 7 | 54 | 46 |
| 8 | 54 | 46 |
| 9 | 53 | 47 |
| 10 | 53 | 47 |
| 11 | 53 | 47 |
| 12 | 52 | 48 |
| 13 | 52 | 48 |
| 14 | 51 | 49 |
| 15 | 51 | 49 |
| 16 | 51 | 49 |
| 17 | 50 | 50 |
| 18 | 51 | 49 |
| 19 | 50 | 50 |
| 20 | 50 | 50 |
| 21 | 51 | 49 |
| 22 | 50 | 50 |
| 23 | 50 | 50 |
| 24 | 50 | 50 |
| 25 | 50 | 50 |
| 26 | 50 | 50 |
| 27 | 50 | 50 |
| 28 | 50 | 50 |
| 29 | 51 | 49 |
| 30 | 51 | 49 |
Chance of precipitation in September
Giresun gets around 176 mm of rain over 14.6 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 48% and peaks near 50% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 49 | 49 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 49 | 49 | 48 | 48 | 48 |
| Rain chance (%) | |
|---|---|
| 1 | 49 |
| 2 | 49 |
| 3 | 50 |
| 4 | 50 |
| 5 | 50 |
| 6 | 50 |
| 7 | 49 |
| 8 | 49 |
| 9 | 49 |
| 10 | 48 |
| 11 | 48 |
| 12 | 48 |
| 13 | 47 |
| 14 | 47 |
| 15 | 47 |
| 16 | 47 |
| 17 | 47 |
| 18 | 47 |
| 19 | 47 |
| 20 | 47 |
| 21 | 47 |
| 22 | 48 |
| 23 | 48 |
| 24 | 48 |
| 25 | 48 |
| 26 | 49 |
| 27 | 49 |
| 28 | 48 |
| 29 | 48 |
| 30 | 48 |
Humidity in September
Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 38% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 16 | 16 |
| Comfortable (%) | 8 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 |
| Humid (%) | 31 | 32 | 32 | 33 | 34 | 34 | 35 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 |
| Muggy (%) | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 35 | 34 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 |
| Oppressive (%) | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 |
| Miserable (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 2 | 8 | 31 | 44 | 14 | 1 |
| 2 | 2 | 10 | 32 | 43 | 13 | 0 |
| 3 | 2 | 11 | 32 | 42 | 12 | 0 |
| 4 | 2 | 12 | 33 | 41 | 11 | 0 |
| 5 | 3 | 13 | 34 | 40 | 10 | 0 |
| 6 | 3 | 14 | 34 | 39 | 9 | 0 |
| 7 | 3 | 15 | 35 | 38 | 8 | 0 |
| 8 | 3 | 16 | 36 | 37 | 7 | 0 |
| 9 | 3 | 17 | 36 | 36 | 7 | 0 |
| 10 | 3 | 18 | 37 | 35 | 6 | 0 |
| 11 | 3 | 19 | 37 | 35 | 6 | 0 |
| 12 | 4 | 20 | 37 | 34 | 6 | 0 |
| 13 | 4 | 20 | 38 | 33 | 5 | 0 |
| 14 | 4 | 21 | 38 | 32 | 5 | 0 |
| 15 | 4 | 21 | 38 | 32 | 5 | 0 |
| 16 | 5 | 22 | 37 | 31 | 5 | 0 |
| 17 | 5 | 22 | 37 | 31 | 4 | 0 |
| 18 | 6 | 22 | 37 | 31 | 4 | 0 |
| 19 | 7 | 23 | 36 | 30 | 4 | 0 |
| 20 | 7 | 23 | 36 | 29 | 4 | 0 |
| 21 | 8 | 24 | 36 | 29 | 4 | 0 |
| 22 | 9 | 24 | 35 | 28 | 4 | 0 |
| 23 | 10 | 25 | 35 | 27 | 3 | 0 |
| 24 | 10 | 25 | 35 | 26 | 3 | 0 |
| 25 | 11 | 26 | 35 | 25 | 3 | 0 |
| 26 | 12 | 26 | 35 | 24 | 2 | 0 |
| 27 | 13 | 26 | 35 | 23 | 2 | 0 |
| 28 | 14 | 26 | 35 | 22 | 2 | 0 |
| 29 | 16 | 26 | 36 | 21 | 1 | 0 |
| 30 | 16 | 26 | 36 | 20 | 1 | 0 |
Wind in September
Winds average 8 km/h in September.
Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
Sunrise & sunset in September
Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 84 minutes over September. Sunrise moves from 4:57 AM to 5:27 AM, and sunset from 5:55 PM to 5:04 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.0 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.6 |
| Sunrise (AM) | 4:57 | 4:58 | 5:00 | 5:01 | 5:02 | 5:03 | 5:04 | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:22 | 5:23 | 5:24 | 5:25 | 5:26 | 5:27 |
| Sunset (PM) | 5:55 | 5:53 | 5:51 | 5:50 | 5:48 | 5:46 | 5:45 | 5:43 | 5:41 | 5:39 | 5:38 | 5:36 | 5:34 | 5:32 | 5:31 | 5:29 | 5:27 | 5:25 | 5:24 | 5:22 | 5:20 | 5:18 | 5:16 | 5:15 | 5:13 | 5:11 | 5:09 | 5:08 | 5:06 | 5:04 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.0 | 4:57 | 5:55 |
| 2 | 12.9 | 4:58 | 5:53 |
| 3 | 12.9 | 5:00 | 5:51 |
| 4 | 12.8 | 5:01 | 5:50 |
| 5 | 12.8 | 5:02 | 5:48 |
| 6 | 12.7 | 5:03 | 5:46 |
| 7 | 12.7 | 5:04 | 5:45 |
| 8 | 12.6 | 5:05 | 5:43 |
| 9 | 12.6 | 5:06 | 5:41 |
| 10 | 12.5 | 5:07 | 5:39 |
| 11 | 12.5 | 5:08 | 5:38 |
| 12 | 12.5 | 5:09 | 5:36 |
| 13 | 12.4 | 5:10 | 5:34 |
| 14 | 12.4 | 5:11 | 5:32 |
| 15 | 12.3 | 5:12 | 5:31 |
| 16 | 12.3 | 5:13 | 5:29 |
| 17 | 12.2 | 5:14 | 5:27 |
| 18 | 12.2 | 5:15 | 5:25 |
| 19 | 12.1 | 5:16 | 5:24 |
| 20 | 12.1 | 5:17 | 5:22 |
| 21 | 12.0 | 5:18 | 5:20 |
| 22 | 12.0 | 5:19 | 5:18 |
| 23 | 11.9 | 5:20 | 5:16 |
| 24 | 11.9 | 5:21 | 5:15 |
| 25 | 11.8 | 5:22 | 5:13 |
| 26 | 11.8 | 5:23 | 5:11 |
| 27 | 11.8 | 5:24 | 5:09 |
| 28 | 11.7 | 5:25 | 5:08 |
| 29 | 11.7 | 5:26 | 5:06 |
| 30 | 11.6 | 5:27 | 5:04 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.12 kWh/m².
For context, solar energy here swings from a low near 1.56 kWh/m² to a high of 6.25 kWh/m² in June across the year — September's 4.12 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.8 | 3.7 | 3.7 | 3.6 | 3.6 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.7 | Bright |
| 2 | 4.7 | Bright |
| 3 | 4.6 | Bright |
| 4 | 4.6 | Bright |
| 5 | 4.5 | Bright |
| 6 | 4.5 | Bright |
| 7 | 4.5 | Bright |
| 8 | 4.4 | Bright |
| 9 | 4.4 | Bright |
| 10 | 4.3 | Bright |
| 11 | 4.3 | Bright |
| 12 | 4.3 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.2 | Bright |
| 15 | 4.2 | Bright |
| 16 | 4.1 | Bright |
| 17 | 4.1 | Bright |
| 18 | 4.0 | Bright |
| 19 | 4.0 | Bright |
| 20 | 4.0 | Moderate |
| 21 | 3.9 | Moderate |
| 22 | 3.9 | Moderate |
| 23 | 3.9 | Moderate |
| 24 | 3.8 | Moderate |
| 25 | 3.8 | Moderate |
| 26 | 3.8 | Moderate |
| 27 | 3.7 | Moderate |
| 28 | 3.7 | Moderate |
| 29 | 3.6 | Moderate |
| 30 | 3.6 | Moderate |
Is September a good time to visit Giresun?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Giresun for sightseeing.
What to pack for Giresun in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Giresun sees daytime highs around 23°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.
Sea temperature near Giresun in September
The nearest coast averages about 24°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 23 km away) is warmest in August at about 25°C and coldest in February near 8°C.
It's comfortable for a long swim from Jun 10 to Oct 15 — about 4.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 8 | 8 | 11 | 16 | 21 | 24 | 25 | 24 | 20 | 16 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 11 | Bracing |
| May | 16 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Warm |
| Aug | 25 | Warm |
| Sep | 24 | Refreshing |
| Oct | 20 | Cool |
| Nov | 16 | Cool |
| Dec | 12 | Bracing |
UV index in Giresun in September
Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Giresun peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 3 | 7 | 7 | 9 | 9 | 9 | 7 | 4 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 3 | Moderate |
| Apr | 7 | High |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Giresun in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Giresun is worst in March — around 32 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 16 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Giresun's WHO annual average of 21.8 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 18 | 25 | 32 | 31 | 24 | 19 | 20 | 21 | 18 | 19 | 18 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 25 | Moderate |
| Mar | 32 | Moderate |
| Apr | 31 | Moderate |
| May | 24 | Moderate |
| Jun | 19 | Moderate |
| Jul | 20 | Moderate |
| Aug | 21 | Moderate |
| Sep | 18 | Moderate |
| Oct | 19 | Moderate |
| Nov | 18 | Moderate |
| Dec | 16 | Moderate |
Where is Giresun?
Giresun sits at 40.9°N, 38.4°E, 39 m above sea level, in Turkey. The nearest listed city is Bulancak, 13 km away.
Topography around Giresun
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Giresun.
Within 3 km, the terrain around Giresun has significant variations in elevation — a maximum elevation change of 508 m around an average of 76 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,205 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,262 m.
The land around Giresun is covered by water (54%) and trees (32%) within 3 km, trees (51%) and water (47%) within 16 km, and trees (45%), water (31%) and grassland (22%) within 80 km.
Turkey travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $18,599
- 2025
- Happiness
- 5.3 / 10
- World Happiness, 2025
- Homicide rate
- 3.2
- per 100k, 2023
- Road deaths
- 6.7
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 488
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Giresun (40.917°, 38.3874°, elevation 39 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).