Last updated: January 18, 2025
Hamadān, Iran, exhibits a diverse climate classified under the Köppen-Geiger system as Dsa and Csa. The region experiences significant temperature variations throughout the year, characterized by a minimum of -27°C (-16°F) during the coldest month of February, contrasting with a scorching maximum of 40°C (105°F) in July. The annual average temperature hovers around 13°C (56°F), reflecting the region's continental climate influenced by both cold winters and hot summers, which shapes the local ecosystem and agricultural practices.
Hamadān, Iran, showcases pronounced seasonal temperature patterns, with harsh winters transitioning into warm summers. In the winter months of January and February, temperatures dip sharply, reaching minimums of -27°C (-16°F), while average highs struggle to exceed 19°C (67°F). As spring approaches in March and April, temperatures gradually rise, with averages climbing to 12°C (53°F) and high peaks of 29°C (85°F). By May, the warmth becomes more pronounced, culminating in summer months where temperatures soar to a blistering 40°C (104°F) in both June and July, accompanied by consistently high averages around 27°C (82°F) to 35°C (96°F). As autumn arrives, temperatures begin to cool again in October and November, signaling a return to lower averages of 15°C (58°F) and chilly minimums, before December ushers back the frosty air, ending the year with cold nights and moderate daytime warmth.
Hamadan experiences a wide range of temperatures throughout the year, with February dipping as low as -19°C (-1°F) and July peaking at a scorching 38°C (100°F). This significant temperature variation highlights the region's continental climate. For more detailed insights into monthly temperatures, visit monthly temperatures in Hamadan.
Hamadān, Iran, exhibits a distinct seasonal pattern in precipitation, with the majority of rainfall concentrated in the winter and spring months. January marks the onset of this wet period, receiving 48 mm (1.9 in) over 7 days, which escalates in February and March with 76 mm (3.0 in) and 81 mm (3.2 in) respectively. This trend continues into April, where precipitation peaks at 90 mm (3.6 in) across 13 days, contributing significantly to the region's water resources. May witnesses a decline in rainfall to 45 mm (1.8 in), signaling the beginning of a dry spell.
From June to September, Hamadān experiences a stark reduction in precipitation, with amounts dwindling to just 1 mm in both July and August, and negligible rainfall in September. The return of rain in October, totaling 25 mm (1.0 in), begins to hint at the transition toward the winter months. November and December see a resurgence in precipitation, with 55 mm (2.2 in) recorded in both months, further reinforcing the pattern of wet winters and dry summers. This seasonal variation plays a crucial role in the region's agriculture and water management strategies.
Hamadān, Iran, experiences a notable increase in sunshine duration as the seasons transition from winter to summer, highlighting the region's vibrant climatic patterns. In the winter months, January and February see modest sunlight hours of 228 and 265 hours, respectively. As spring unfolds, there is a steady ascent in sunshine, with March and April delivering 320 and 344 hours. May marks the transition into summer, accumulating 388 hours of sunlight, further cementing the trend of longer days and brighter skies.
Summer reaches its zenith in June with an impressive 404 hours of sunshine, making it the sunniest month of the year. This abundance of light slightly dips in July and August but still remains substantial, with 397 and 383 hours respectively. As autumn arrives, sunlight begins to wane, showcasing 350 hours in September before descending to 322 hours in October and leveling out at 270 hours in both November and December. This cyclical pattern underscores Hamadān's transition from lengthy sunny days in summer to shorter daylight hours in winter, playing a crucial role in the region's ecological balance and agricultural cycles.
In Hamadān, Iran, the UV Index demonstrates significant seasonal variation, highlighting the need for sun safety awareness throughout the year. Beginning in January, the UV Index starts at 6, categorized as high, with a burn time of 25 minutes. This trend continues into February with a slight increase to 7, indicating a consistent risk of sun exposure. However, as spring advances, particularly in March and April, the UV Index escalates sharply to 9 and 10, entering the very high exposure category and demanding reduced sun exposure of just 15 minutes for unprotected skin.
As summer approaches, the UV Index reaches alarming heights, peaking at 13 in both May and June, classified as extreme and necessitating a mere 10 minutes of safe exposure time. Although July and August maintain high levels at 12 and 11, the index gradually decreases in September and October, returning to very high levels with 10 and 8 respectively. By late fall, the UV Index drops again to 5 in both November and December, marking a moderate risk, and extending the burn time to 30 minutes. This seasonal trend emphasizes the importance of proactive sun protection measures, particularly during the peak UV months of late spring and summer.
UV Risk Categories
In Hamadān, Iran, daylight duration varies notably throughout the year, illustrating the distinct seasonal changes experienced in the region. During the winter months, January and February offer around 10 hours of daylight, providing a brief respite from the long nights. As spring unfolds in March, daylight increases modestly to 11 hours, promoting an energizing environment as nature begins to awaken. April and May feature longer days with 13 hours of light, enabling extended outdoor activities and fostering agricultural growth before the summer solstice.
As summer fully arrives, Hamadān enjoys its longest days, peaking at 14 hours of daylight in both June and July, which significantly enhances the warm and vibrant atmosphere of the region. The daylight hours slowly begin to shorten in August, transitioning to 13 hours, and further decreasing to 12 hours by September. In the fall months of October and November, daylight lingers around 11 horas before retreating to 10 hours in December, closing out the year with a notable decline. This cyclical pattern of daylight duration underscores the importance of adapting daily routines and agricultural practices to harness the varying light conditions throughout the year.
Hamadan, Iran, experiences a diverse climate characterized by cold winters and warm summers. January temperatures can drop to -16°C (4°F) with an average of -1°C (31°F), while summer highs in July can reach up to 38°C (100°F). Precipitation peaks in spring, especially in April with 98 mm (3.9 in), and remains low during the summer months. The region benefits from abundant sunshine, with the highest in May at 389 hours. For more detailed information, visit Hamadan climate.
In conclusion, Hamadān, Iran, presents a dynamic climate characterized by significant variations in temperature, precipitation, sunshine duration, UV Index, and daylight hours throughout the year. The harsh winters give way to hot summers, influencing both the ecological and agricultural landscapes of the region. As daylight increases in spring and reaches its peak in summer, residents and farmers alike benefit from extended exposure to sunlight. However, the rise in UV Index during the warmer months necessitates heightened awareness and protective measures against sun exposure. Understanding these climatic elements enables locals and visitors to make informed decisions regarding outdoor activities and health precautions, ultimately enhancing their experience in this diverse and beautiful region.