Mecca is 0.8°C (1.4°F) warmer by day, Jeddah has 2.5°C (4.5°F) warmer nights, and both get similar annual rainfall.
Jeddah is at its warmest in June and coolest in January, while Mecca peaks in June and bottoms out in January. Month for month, Jeddah is the warmer of the two in 9 of 12 months.
Both collect a similar amount of rain over the year — 48 mm (1.9 in) in Jeddah and 50 mm (2 in) in Mecca. The most comfortable time to visit is January, February and December in Jeddah and January, February and December in Mecca.
| Jeddah | Metric | Mecca |
|---|---|---|
| 🌡️ Temperature | ||
| 39.5°C | 🌡️Average daytime high | 40.3°C |
| 21.2°C | 🌙Average nighttime low | 18.7°C |
| June | 🔥Hottest month | June |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 48 mm | 🌧️Annual rainfall | 50 mm |
| November | ☔Wettest month | November |
| June | 🏜️Driest month | July |
| 💨 Climate | ||
| 46% | 💧Average humidity | 34% |
| 3.3 m/s | 💨Average wind speed | 3 m/s |
Overnight, Jeddah typically falls to around 21.2°C (70.2°F) while Mecca settles near 18.7°C (65.7°F).
Jeddah is hottest in June and coldest in January, whereas Mecca peaks in June and is coolest in January.
Jeddah sees the most rain in November and the least in June; Mecca is wettest in November and driest in July.
Jeddah feels the more humid of the two, averaging 46% relative humidity against 34%.
For Mecca, the pick of the year is January, February and December.
Month by month, here is the coldest night, the average day and the hottest afternoon each city can expect. Switch Compare to read rainfall, humidity, wind or solar instead, and Period to move between the long-term 45-year average and any single year — the shading is a quick warm-to-cool guide.
| Month | Jeddah | Mecca | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 14.6 | 23.4❄️ | 32.1 | 10.6 | 21.4❄️ | 32.2 |
| February | 14.6 | 24.3 | 33.9 | 10.8 | 22.6 | 34.4 |
| March | 16.3 | 26.4 | 36.5 | 12.9 | 25 | 37.2 |
| April | 19.1 | 29.4 | 39.7 | 16.9 | 28.7 | 40.6 |
| May | 22.9 | 33.2 | 43.6 | 21.5 | 33.1 | 44.6 |
| June | 24.9 | 35 | 45 | 24.4 | 35.4 | 46.4 |
| July | 26.5 | 35.2 | 44 | 25 | 35.6🔥 | 46.2 |
| August | 27 | 35.3 | 43.5 | 25 | 35.4 | 45.7 |
| September | 26.6 | 35.4🔥 | 44.2 | 25.3 | 35.2 | 45.1 |
| October | 24.4 | 33 | 41.6 | 21.3 | 31.4 | 41.5 |
| November | 20.6 | 28.5 | 36.4 | 17.2 | 26.8 | 36.3 |
| December | 16.8 | 25.1 | 33.4 | 12.9 | 23.1 | 33.2 |
| Annual Avg | 21.2 | 30.4 | 39.5 | 18.7 | 29.5 | 40.3 |
Min / mean / max temperature (°C). 🔥 marks each city's hottest month, ❄️ its coldest; shading runs cool blue to warm red.
The same figures plotted out, so the shape of a typical year is easier to see than in a grid. Where the two lines run close together Jeddah and Mecca feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Jeddah Mecca
See how Jeddah and Mecca stack up against other cities. Swipe for more.
Choose which city to keep, then search for any other city in our database — we'll build the comparison for you.
Quick answers to the questions people ask most when comparing Jeddah and Mecca — each drawn straight from the climate figures above.
Mecca is the warmer of the two. It averages daytime highs of 40.3°C (104.5°F) against 39.5°C (103.1°F) in Jeddah — roughly 0.8°C (1.4°F) warmer by day. Nights are milder in Jeddah, with average lows of 21.2°C (70.2°F) versus 18.7°C (65.7°F).
Jeddah is hottest in June, averaging highs of about 45°C (113.1°F), while Mecca peaks in June at around 46.4°C (115.6°F). That makes Mecca the hotter of the two at the height of summer.
Mecca gets colder. In its coldest month (January) overnight lows average about 10.6°C (51.1°F), compared with 14.6°C (58.2°F) at the low point of the year in Jeddah.
They get a similar amount of rain over a year — about 48 mm (1.9 in) in Jeddah and 50 mm (2 in) in Mecca. Jeddah is wettest in November and driest in June; Mecca is wettest in November and driest in July.
Jeddah is the more humid of the two, averaging 46% relative humidity over the year against 34% in Mecca.
The most comfortable months in Jeddah are January, February and December, when average temperatures are at their mildest.
Mecca is at its most pleasant around January, February and December, based on the mildest average temperatures of the year.
Jeddah is the warmer city in 9 of the 12 months of the year. The gap is widest in January, about 2°C (3.6°F), and narrowest in May, about 0.1°C (0.2°F).
Mecca has the bigger seasonal swing, about 14.2°C (25.6°F) between its coldest and hottest months versus 12°C (21.6°F) in Jeddah — so Jeddah has the steadier, more even climate.
On climate alone, Mecca comes out ahead — it offers warmer days and lower humidity than Jeddah. Jeddah is the better fit only if you'd actually prefer cooler weather and a more humid climate.
Every figure on this page is calculated from NASA POWER satellite climate data spanning 1981–2025 (45 years). The averages describe the long-term climate of Jeddah and Mecca, not a single year's weather or a short-range forecast.
