Istanbul Weather

2025 (Full Year)

Historical data
Average Temperature
19.6 °C
High
/
13.3 °C
Low
644.1mm
Precipitation
38.1°C
Peak Temp
-3.7°C
Low Temp
365
Days Count

Seasonal Breakdown

Average temperatures and precipitation by season

Spring

92 days
17.7°C
Avg High
/
10.1°C
Avg Low
Precipitation
154.8mm

Summer

92 days
29.6°C
Avg High
/
21.6°C
Avg Low
Precipitation
5.1mm

Autumn

91 days
20.7°C
Avg High
/
15.6°C
Avg Low
Precipitation
237.2mm

Winter

90 days
10.1°C
Avg High
/
5.6°C
Avg Low
Precipitation
247.0mm

Seasons based on meteorological calendar: Spring (Mar-May), Summer (Jun-Aug), Autumn (Sep-Nov), Winter (Dec-Feb)

Monthly Breakdown

Average temperatures and precipitation by month

January

31 days
11.1°C / 6.5°C
Avg High / Low
Precipitation
85.0mm

February

28 days
7.0°C / 2.6°C
Avg High / Low
Precipitation
81.8mm

March

31 days
15.8°C / 8.2°C
Avg High / Low
Precipitation
37.5mm

April

30 days
15.4°C / 8.2°C
Avg High / Low
Precipitation
38.9mm

May

31 days
21.7°C / 13.9°C
Avg High / Low
Precipitation
78.4mm

June

30 days
28.1°C / 19.5°C
Avg High / Low
Precipitation
2.3mm

July

31 days
31.6°C / 22.6°C
Avg High / Low
Precipitation
0.4mm

August

31 days
29.0°C / 22.6°C
Avg High / Low
Precipitation
2.4mm

September

30 days
24.9°C / 19.2°C
Avg High / Low
Precipitation
27.5mm

October

31 days
19.1°C / 14.2°C
Avg High / Low
Precipitation
138.2mm

November

30 days
18.0°C / 13.6°C
Avg High / Low
Precipitation
71.5mm

December

31 days
11.9°C / 7.5°C
Avg High / Low
Precipitation
80.2mm

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

38.1°C
Wednesday, July 23

Coolest Day

1.4°C
Saturday, February 22

Period Low

-3.7°C
Sunday, February 23

Compare with historical weather

Load the same period from the previous 15 years.

Weather Insights

Key findings from analysis for selected period

Extreme Temperature Variations

Worth noting

Temperature extremes from -3.7°C to 38.1°C. 49 cold days and 5 very hot days.

📅

Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: October (138mm), January (85mm)
Driest: July (0mm), June (2mm)

Temperature Patterns (Monthly Averages):
Hottest months: July (31.6°C), August (29.0°C)
Coolest months: February (7.0°C), January (11.1°C)

Travel Recommendations:
Best visiting months: May, September, October (optimal temperature and rainfall balance).
⚠️

11 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 11 notable days in this period:

Jul 23 Heat

Hottest day: 38.1°C

Jul 9 Heat

Very hot day: 37.0°C

Jul 22 Heat

Very hot day: 36.5°C

6 Extreme Heat Index Days

Worth noting

6 days with dangerous heat index levels (43.7°C average). Temperature 34.4°C combined with 61% humidity creates hazardous conditions.

🌤️

Moderate Humidity Levels

Notable

Average humidity of 70% represents typical moderate moisture conditions. Generally comfortable range for most activities. Humidity varied significantly (27%-95% range).

📊

Highly Variable Humidity

Info

Large humidity swings (27%-95%) for a year. Conditions ranged from dry to very humid.

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Data Source

Weather data provided by Open-Meteo, offering reliable historical weather information from meteorological stations worldwide.

Data accuracy and availability may vary by location and time period.

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