Körfez in Spring

In spring (March, April and May), Körfez sees average daytime highs around 17°C and overnight lows near 8°C, with 213 mm of precipitation over about 33 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs climb from about 11°C in early March to 23°C by late May. The sky is clear or mostly clear about 34% of the time across spring, and the air most often feels dry.

Spring is Körfez's 3rd-best season to visit on our travel score. For the whole year in context, see Körfez's year-round climate.

Avg daytime high: 17°C; 3rd-warmest season
Avg overnight low: 8°C
Precipitation: 213 mm; 33 wet days
Avg wind: 8 km/h
Travel score: 5.0; 3rd-best season
Months: Mar · Apr · May

← Winter Körfez year-round climate Summer →

Spring Summer Fall Winter

Temperature in Körfez in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 11°C in early March to 23°C by late May.

A typical spring day in Körfez reaches about 17°C and drops to 8°C overnight. The warmest of the three months is May, the coolest March.

How spring really feels in Körfez

Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Körfez weather by month

How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	8° / 2°	95	13.6	6.2	9.4	1.1
Feb	9° / 2°	81	12.6	5.3	10.4	1.7
Mar	12° / 4°	88	12.9	2.7	11.7	3.0
Apr	17° / 7°	66	10.8	0.5	13.1	5.2
May	21° / 12°	59	9.3	0	14.2	6.9
Jun	26° / 16°	63	9.7	0	14.9	7.2
Jul	28° / 18°	38	5.8	0	14.6	7.3
Aug	28° / 19°	36	5.5	0	13.6	7.1
Sep	25° / 15°	57	7.9	0	12.3	7.6
Oct	20° / 12°	81	10.4	0	10.9	6.3
Nov	14° / 7°	75	10.2	1	9.7	4.3
Dec	9° / 3°	103	13	3.8	9.1	1.8

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time across spring.

Chance of precipitation in Spring

Any precipitationSnow

Körfez gets around 213 mm of rain and snow over 33 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Spring

Winds average 8 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 hours in early March to 14 h 42 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 4.9 kWh/m².

Planning a trip in spring

Is spring a good time to visit Körfez?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

5.0

Sightseeing

3rd-best month of the year

1.8

Beach & pool

3rd-best month of the year

spring is a reasonable time to visit Körfez for sightseeing.

What to pack for Körfez in Spring

From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In spring, Körfez sees daytime highs around 17°C and nights near 8°C. Pack sun protection. Worth having: a warm layer and rain gear. About 33 days see rain.

sun protectiona warm layerrain gear

Sea temperature near Körfez in Spring

The nearest coast averages about 11°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 41 km away) is warmest in August at about 25°C and coldest in February near 7°C.

It's comfortable for a long swim from Jun 11 to Oct 10 — about 4 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	9	7	8	10	16	21	24	25	23	19	15	11
Comfort	Bracing	Bracing	Bracing	Bracing	Cool	Refreshing	Warm	Warm	Refreshing	Cool	Cool	Bracing

	Sea temperature (°C)	Comfort
Jan	9	Bracing
Feb	7	Bracing
Mar	8	Bracing
Apr	10	Bracing
May	16	Cool
Jun	21	Refreshing
Jul	24	Warm
Aug	25	Warm
Sep	23	Refreshing
Oct	19	Cool
Nov	15	Cool
Dec	11	Bracing

UV index in Körfez in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Körfez peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	2	4	7	7	9	9	9	7	4	2	2
Level	Low	Moderate	Moderate	High	High	Very high	Very high	Very high	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	2	Moderate
Mar	4	Moderate
Apr	7	High
May	7	High
Jun	9	Very high
Jul	9	Very high
Aug	9	Very high
Sep	7	High
Oct	4	Moderate
Nov	2	Moderate
Dec	2	Low

Air quality in Körfez in Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.

Air quality in Körfez is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	9	11	16	16	15	13	10	10	10	10	10	8
Level	Good	Good	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	9	Good
Feb	11	Good
Mar	16	Moderate
Apr	16	Moderate
May	15	Moderate
Jun	13	Moderate
Jul	10	Good
Aug	10	Good
Sep	10	Good
Oct	10	Good
Nov	10	Good
Dec	8	Good

Location & terrain

Where is Körfez?

Körfez sits at 40.8°N, 29.8°E, 57 m above sea level, in Turkey. The nearest listed city is Derince, 3.0 km away.

Topography around Körfez

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Körfez.

Within 3 km, the terrain around Körfez has significant variations in elevation — a maximum elevation change of 400 m around an average of 87 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 951 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,600 m.

The land around Körfez is covered by artificial surfaces (52%) and trees (29%) within 3 km, trees (53%) within 16 km, and trees (48%) and water (27%) within 80 km.

3 km

400 m

artificial surfaces 52%

16 km

951 m

trees 53%

80 km

1,600 m

trees 48%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Winter Körfez year-round climate Summer →

Spring weather nearby: Derince 3.0 km · Gölcük 7.0 km · İzmit 12 km · Karamürsel 16 km · Gebze 30 km · İznik 38 km · Sapanca 42 km · Yalova 44 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 Körfez (40.767°, 29.7828°, elevation 57 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.