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Reza Shah MausoleumReport this photo · linked, not stored
Reza Shah MausoleumReport this photo · linked, not stored
Climate guideThirty-year normals for Ray
Ray climate by month
Hot-summer Mediterranean · CsaBest Apr–May · Oct
Annual mean16°day and night
Seasonal swing29°warmest vs coolest
Precipitation369 mm91 wet days a year
35.59° N, 51.44° EElevation 1,062 mUTC+3:30 · Iran Standard Time
When to goRay · weather score
Best timeApr–May · Oct
October: high / low24° / 13°
iSummary
What the weather is like
Ray has a hot-summer Mediterranean climate (Köppen Csa): dry, sunny summers and mild, wetter winters.
The warmest month is July, when afternoons average 37° and nights 25°. January is the coolest month, with highs of 7° and lows of -4°. The difference between the warmest and the coolest month is about 29°, a large swing typical of continental interiors.
About 369 mm of precipitation falls in an average year. November is the wettest month (38 mm, 11 wet days) and June the driest (4 mm, 3 wet days). Cloud cover ranges from 3% in August to 27% in March.
Compared with Tehran, the capital, Ray is 1.4° warmer on a July afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 37° · July
- Coldest nights
- -4° · January
- Wettest month
- November
- Driest month
- June
- Clearest skies
- August · 3% cloud
- Longest day
- 14 h 33 min
- Shortest day
- 9 h 46 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 7° | 9° | 14° | 22° | 28° | 34° | 37° | 36° | 31° | 24° | 16° | 9° |
| Average low | -4° | -2° | 2° | 9° | 15° | 21° | 25° | 24° | 19° | 13° | 5° | -1° |
| Precipitation | 53 mm | 53 mm | 69 mm | 51 mm | 23 mm | 4 mm | 4 mm | 2 mm | 2 mm | 17 mm | 38 mm | 53 mm |
| Wet days (≥1 mm) | 9.8 | 9.3 | 9.3 | 8.4 | 4.5 | 3 | 3.9 | 4.3 | 7.2 | 9.4 | 11.4 | 10.2 |
| Cloud cover | 25% | 25% | 27% | 27% | 20% | 6% | 4% | 3% | 3% | 14% | 21% | 25% |
| Daylight | 10h 00 | 10h 54 | 11h 55 | 13h 04 | 14h 02 | 14h 33 | 14h 21 | 13h 32 | 12h 26 | 11h 20 | 10h 19 | 9h 46 |
| Month score | 35 | 36 | 58 | 80 | 77 | 55 | 49 | 48 | 57 | 78 | 62 | 34 |
ivMonth by month
Ray in every month
January35
7° / -4°
53 mm · 9.8 wet days
February36
9° / -2°
53 mm · 9.3 wet days
March58
14° / 2°
69 mm · 9.3 wet days
April80
22° / 9°
51 mm · 8.4 wet days
May77
28° / 15°
23 mm · 4.5 wet days
June55
34° / 21°
4 mm · 3 wet days
July49
37° / 25°
4 mm · 3.9 wet days
August48
36° / 24°
2 mm · 4.3 wet days
September57
31° / 19°
2 mm · 7.2 wet days
October78
24° / 13°
17 mm · 9.4 wet days
November62
16° / 5°
38 mm · 11.4 wet days
December34
9° / -1°
53 mm · 10.2 wet days