Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Susa is from February, March, November. — consistent weather climate
🌡Hot & dry
| Score | 70 | 85 | 85 | 81 | 37 | 19 | 17 | 17 | 22 | 50 | 85 | 81 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Mild | Mild | Humid | Pleasant | Hot & dry | Hot & dry | Hot & dry | Hot & dry | Hot & dry | Hot & dry | Humid | Mild |
| Temperature | 7–18°C | 8–20°C | 12–24°C | 17–31°C | 23–38°C | 28–45°C | 31–47°C | 30–47°C | 27–43°C | 21–36°C | 14–25°C | 9–20°C |
| Feels like | 5–16°C | 6–19°C | 10–24°C | 16–31°C | 22–38°C | 26–44°C | 29–47°C | 29–47°C | 25–42°C | 19–34°C | 13–25°C | 7–18°C |
| Precipitation | 65mm 6 days | 55mm 6 days | 91mm 7 days | 39mm 3 days | 17mm 1 days | 0mm 0 days | 0mm 0 days | 0mm 0 days | 0mm 0 days | 20mm 1 days | 89mm 7 days | 74mm 7 days |
| Sunshine | 8.4h ☀︎ 81% | 8.7h ☀︎ 79% | 9.8h ☀︎ 81% | 10.7h ☀︎ 83% | 11.9h ☀︎ 86% | 13.0h ☀︎ 92% | 12.7h ☀︎ 91% | 12.1h ☀︎ 91% | 11.4h ☀︎ 92% | 10.4h ☀︎ 91% | 8.3h ☀︎ 79% | 7.8h ☀︎ 77% |
| Wind | N · 11 km/h | N · 12 km/h | N · 13 km/h | N · 14 km/h | NW · 16 km/h | W · 19 km/h | W · 18 km/h | W · 16 km/h | W · 15 km/h | NW · 13 km/h | N · 12 km/h | NW · 11 km/h |
| Humidity (%) | 72% | 67% | 60% | 47% | 30% | 15% | 15% | 17% | 18% | 29% | 61% | 75% |
| Day length | 10.3h | 11.0h | 12.0h | 13.0h | 13.8h | 14.2h | 14.0h | 13.3h | 12.4h | 11.4h | 10.5h | 10.1h |
Conventional travel wisdom insists on February for Susa's mildest weather, but April is the real masterstroke: trading a few degrees of midday warmth to explore the empire's ancient winter capital without the suffocating winter crowds.
Susa does not announce itself with towering colonnades; it rises out of the Khuzestan plains between the Karkheh River and the Dez River as a series of vast, sun-baked mounds layered with five thousand years of continuous civilization. Modern Shush wraps tightly around the ancient ruins where Elamite monarchs held court and Persian kings escaped the frozen winters of the highlands, all beneath the distant gaze of the Zagros Mountains. Travelers come here to walk antiquity in its rawest form—the footprint of the Apadana Palace, the conical pinecone dome of the Tomb of Daniel, and the bizarre fortress of Shush Castle, built by French archaeologists using bricks scavenged from ancient ruins. But timing an encounter with this landscape requires precision: Khuzestan swings abruptly from rain-slicked, busy winters to months where the sun turns the archaeological plateau into an unlivable kiln.
Standard guidebooks will tell you to visit in February, and from a purely meteorological standpoint, they have a tidy argument. February brings comfortable afternoons around twenty degrees, the dust remains settled, and you can cross the exposed trenches without breaking a sweat. What those guides fail to mention is that everyone else had the exact same idea. In February, you share the narrow shade of surviving brickwork with bus tours, and the quiet awe of an imperial capital gets swallowed by human chatter.
April is where the savvy traveler wins. Yes, the temperature climbs past thirty degrees by early afternoon, and the sun begins to show its desert teeth. But the winter crowds have evaporated. The tour groups that pack the site from late autumn through the Persian New Year are gone, leaving the massive archaeological mounds nearly deserted.
Because the heavy rains of early spring have just tapered off, the surrounding plains and the banks along the Karkheh River still retain a brief, fragile wash of green before the earth bakes into dust. If you walk out across the foundations of the Apadana Palace in the crisp light of early morning or as the late-afternoon shadow of Shush Castle stretches over the Acropolis mound, you will have thousands of years of imperial history entirely to yourself. The trade is simple: accept a few hours of afternoon heat in exchange for an empty world.
From November through March, the cold winds driving across the Iranian plateau push domestic travelers and pilgrims down into the warm lowlands of Khuzestan. December marks the absolute peak of the year, when Shush fills to its seams. The perimeter surrounding the Tomb of Daniel hums day and night with visitors paying respects under the mirrored ceilings, and the archaeological paths stay constantly occupied.
The weather during these months is undeniably gentle, with crisp evenings and pleasant daytime air that feels like a Mediterranean spring. Yet winter brings an underreported challenge: water. Late autumn and early spring deliver sudden, heavy downpours that saturate the terrain.
Because Susa is built from millennia of decayed mudbrick and river silt, rain does not simply run off; it turns the exposed paths of the excavation mounds into treacherous, clinging clay. March sees particularly intense rain bursts that can derail a walking tour in minutes. If you come during the winter high season, you will enjoy the softest temperatures of the calendar, but you must accept muddy boots and a crowded, festive atmosphere where contemplative solitude is impossible to find.
There is no romanticizing summer in Shush. By May, the ambient warmth curdles into a brutal, flat desert heat that dominates every waking hour. By July and August, afternoon temperatures routinely push past forty-seven degrees. The mudbrick mounds reflect the sun like open hearths, and the stone plinths of ancient palaces become hot enough to burn bare skin.
Curiously, June sees an uptick in domestic visitors, but wandering the uncovered ruins during these months is an exercise in endurance rather than appreciation. The humidity drifting from the Dez River offers no relief; it only makes the afternoon air feel heavier and more stifling.
Life in the city during summer contracts entirely to the margins of the day. The mounds are best left alone until the sun drops below the horizon, when the illuminated spire of the Tomb of Daniel draws locals into the cooler evening air. Unless you are drawn to extreme heat, avoid the ancient city entirely during this long, merciless stretch.
October marks the first true break in the half-year siege of heat, but it remains a transitional period rather than prime traveling time. The daytime sun is still sharp and temperatures linger in the mid-thirties, though the evenings finally drop to a level where dining outdoors becomes comfortable again.
The month also brings the first erratic storms of autumn, occasionally delivering sharp, heavy bursts of rain that break the summer dust haze. When the air clears after an October shower, the sharp ridge of the Zagros Mountains reappears on the northeastern horizon for the first time in months.
It is a functional window if you wish to beat the winter rush, but you will still be dodging intense midday radiation. April remains the superior shoulder month: the landscape is greener, the light is clearer, and the long winter rains have already done their work.