Bayji climate
Bayji (Iraq) has a hot desert climate (Köppen BWh). The average temperature over the year is 23 °C73 °F, and about 202 mm8.0 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Bayji climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1457 | 337 | 847 | 311.2 | 5 |
| Feb | 1762 | 440 | 1151 | 291.1 | 3 |
| Mar | 2373 | 947 | 1660 | 331.3 | 0 |
| Apr | 2983 | 1457 | 2170 | 291.1 | 0 |
| May | 3596 | 2068 | 2882 | 100.4 | 0 |
| Jun | 42107 | 2577 | 3392 | 10.0 | 0 |
| Jul | 45112 | 2883 | 3697 | 10.0 | 0 |
| Aug | 44112 | 2882 | 3697 | 00.0 | 0 |
| Sep | 39103 | 2475 | 3289 | 10.0 | 0 |
| Oct | 3289 | 1865 | 2577 | 110.4 | 0 |
| Nov | 2271 | 1050 | 1660 | 251.0 | 0 |
| Dec | 1660 | 540 | 1050 | 311.2 | 3 |
| Year | 45112 | 337 | 2373 | 2028.0 | 11 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 60% | 59% | 2.9 | 10:03 |
| Feb | 56% | 51% | 3.9 | 10:53 |
| Mar | 48% | 47% | 5.2 | 11:52 |
| Apr | 42% | 49% | 6.1 | 13:01 |
| May | 31% | 37% | 7.2 | 13:59 |
| Jun | 19% | 16% | 8.1 | 14:29 |
| Jul | 17% | 14% | 7.8 | 14:17 |
| Aug | 18% | 15% | 7.1 | 13:27 |
| Sep | 20% | 24% | 6.0 | 12:21 |
| Oct | 30% | 44% | 4.4 | 11:14 |
| Nov | 47% | 54% | 3.3 | 10:17 |
| Dec | 57% | 61% | 2.6 | 9:49 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Bayji is like
The warmest month is July, with an average high of 45 °C112 °F and a low of 28 °C83 °F. The coldest is January, when highs average 14 °C57 °F and lows 3 °C37 °F. Seasons are strongly marked: the warmest month is on average 28 °C50.4 °F warmer than the coldest.
It is dry, with about 202 mm8.0 in of precipitation per year. The wettest three-month stretch is January–March, which brings 46% of the annual total. Months with less than 20 mm0.8 in on average: May–October. The wettest month is March (33 mm1.3 in), the driest is August (0 mm0.0 in).
Relative humidity ranges from 17% in July to 60% in January. The clearest skies (lowest average cloud amount, 14%) are typical of July. Average wind speed near the ground ranges from 7 km/h (5 mph) in November to 12 km/h (7 mph) in July. Daylight lasts from about 9.8 hours in December to 14.5 hours in June.
Best time to visit Bayji
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and November: average highs of 22 °C71 °F to 29 °C83 °F with 25 mm1.0 in to 33 mm1.3 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 45 °C112 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Bayji
- Winter (December–February) — highs 1457 to 17 °C62 °F, lows 337 to 5 °C40 °F, about 30 mm1.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2373 to 35 °C96 °F, lows 947 to 20 °C68 °F, about 24 mm0.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 42107 to 45 °C112 °F, lows 2577 to 28 °C83 °F, about 1 mm0.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2271 to 39 °C103 °F, lows 1050 to 24 °C75 °F, about 12 mm0.5 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
How Bayji compares
Compared with Kirkuk, about 102 km to the northeast, Bayji is on average 1.1 °C2 °F warmer and receives 29% less precipitation (202 mm8.0 in vs 283 mm11 in). The difference is largest in April (1.7 °C3.1 °F warmer).
Of the 39 places in Iraq covered by World Climates, Bayji is the 26th warmest by annual mean temperature and the 17th wettest by annual precipitation. See all of them on the Iraq climate page.
Places in other countries with the most similar temperature and rainfall pattern: Izeh (Iran, BSh), Kazerun (Iran, BSh) and Deir ez-Zor (Syria, BWh).
Nearby places
- Ash Sharqat 70 km · 22 °C71 °F · 196 mm7.7 in
- Samarra 89 km · 23 °C73 °F · 151 mm5.9 in
- Kirkuk 102 km · 22 °C71 °F · 283 mm11 in
- Tuz Khurmatu 104 km · 23 °C73 °F · 266 mm10 in
- Erbil 148 km · 20 °C69 °F · 283 mm11 in
- Xebat 151 km · 21 °C70 °F · 331 mm13 in
- Khasnahzan 153 km · 19 °C67 °F · 301 mm12 in
- Mosul 160 km · 22 °C71 °F · 315 mm12 in
Frequently asked questions
What is the warmest month in Bayji?
July is the warmest month in Bayji, with an average high of 45 °C (112 °F) and an average low of 28 °C (83 °F).
What is the coldest month in Bayji?
January is the coldest month, with an average high of 14 °C (57 °F) and an average low of 3 °C (37 °F).
When does it rain the most in Bayji?
March is the wettest month with about 33 mm (1.3 in) of precipitation; August is the driest with about 0 mm (0.0 in).
What is the best time to visit Bayji?
Judging by long-term averages, the most comfortable months are March and April and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 173 m, while Bayji lies at about 115 m. Temperatures on this page were therefore adjusted by +0.4 °C0.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.