Climate averages 1991–2020
Rosh Ha‘Ayin weather
in January.
A mild, moderately wet month: the coolest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a mild month in Rosh Ha‘Ayin: daytime highs average 17.4°C and nights cool to about 9.5°C. By daytime temperature it is the coolest month of the year.
Expect about 68 mm of rain on roughly 10 days, which makes January a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 18 min on an average January day.
The nearest other city in this atlas is Petaẖ Tiqva (6 km away). In January its highs average 16.8°C, 0.5°C cooler than Rosh Ha‘Ayin, with 68 mm of rain.
Among the 18 cities listed in Israel, Rosh Ha‘Ayin ranks 1st of 18 for the warmest January highs and joint 4th of 18 for the driest January (rainfall, lowest first). The mean January high of those 18 cities is 16.2°C; Rosh Ha‘Ayin is 1.2°C warmer than that mean.
From January to February, average highs rise by 1.0°C to 18.4°C, and monthly rainfall falls from 68 mm to 62 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rosh Ha‘Ayin climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 17.4°C9.5°C | 9.5°C | 68 | 10.3 | 10.310 h |
| February | 18.4°C9.9°C | 9.9°C | 62 | 9.4 | 11.011 h |
| March | 21.4°C11.8°C | 11.8°C | 41 | 6.7 | 12.012 h |
| April | 25.5°C14.4°C | 14.4°C | 17 | 3.4 | 12.913 h |
| May | 29.2°C17.7°C | 17.7°C | 6.4 | 1.4 | 13.814 h |
| June | 31.4°C20.2°C | 20.2°C | 1.3 | 0.3 | 14.214 h |
| July | 32.9°C22.2°C | 22.2°C | 0.3 | 0.0 | 14.014 h |
| August | 33.2°C23.0°C | 23.0°C | 0.2 | 0.0 | 13.313 h |
| September | 32.1°C22.2°C | 22.2°C | 2.0 | 0.7 | 12.412 h |
| October | 29.6°C20.2°C | 20.2°C | 13 | 3.4 | 11.411 h |
| November | 24.3°C15.5°C | 15.5°C | 30 | 5.6 | 10.511 h |
| December | 19.4°C11.4°C | 11.4°C | 52 | 8.3 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Petaẖ Tiqva in JanuaryIsrael · 6 kmHigh 16.8°C · Low 9.6°C · 68 mm rain
- Kfar Saba in JanuaryIsrael · 10 kmHigh 16.8°C · Low 9.8°C · 73 mm rain
- Herzliya in JanuaryIsrael · 14 kmHigh 16.4°C · Low 10.1°C · 102 mm rain
- Tel Aviv in JanuaryIsrael · 16 kmHigh 16.4°C · Low 10.2°C · 97 mm rain
- Lod in JanuaryIsrael · 18 kmHigh 17.0°C · Low 9.6°C · 68 mm rain
- Rishon LeTsiyyon in JanuaryIsrael · 21 kmHigh 16.2°C · Low 10.0°C · 97 mm rain
- Modi‘in Makkabbim Re‘ut in JanuaryIsrael · 23 kmHigh 16.2°C · Low 8.1°C · 68 mm rain
- Reẖovot in JanuaryIsrael · 26 kmHigh 16.3°C · Low 9.9°C · 97 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rosh Ha‘Ayin) is explained once on the Rosh Ha‘Ayin year overview and on the Sources, method and limits page.
Petaẖ Tiqva, Modi‘in Makkabbim Re‘ut and Lod lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.