Heiloo Weather in January
Average highs run from 6°C on January 1 to 6°C on January 31, and lows from 4°C to 3°C. Normal precipitation for the month is 78 mm over about 16 wet days.
January day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
January at a glance
- Average high
- 6°C
- Average low
- 4°C
- Precipitation
- 78 mm
- Daylight
- 7 h 45 min to 9 h 00 min
- Cloud cover
- 76%
- Humidity
- 88%
- Dew point
- 3°C
- Wind
- 29.9 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 6°C | 4°C | 55% | ||
| Jan 2 | 6°C | 4°C | 54% | ||
| Jan 3 | 6°C | 4°C | 54% | ||
| Jan 4 | 6°C | 4°C | 53% | ||
| Jan 5 | 6°C | 4°C | 53% | ||
| Jan 6 | 6°C | 4°C | 52% | ||
| Jan 7 | 6°C | 4°C | 51% | ||
| Jan 8 | 6°C | 4°C | 51% | ||
| Jan 9 | 6°C | 4°C | 50% | ||
| Jan 10 | 6°C | 4°C | 50% | ||
| Jan 11 | 6°C | 4°C | 49% | ||
| Jan 12 | 6°C | 4°C | 49% | ||
| Jan 13 | 6°C | 4°C | 48% | ||
| Jan 14 | 6°C | 4°C | 47% | ||
| Jan 15 | 6°C | 4°C | 47% | ||
| Jan 16 | 6°C | 4°C | 47% | ||
| Jan 17 | 6°C | 4°C | 46% | ||
| Jan 18 | 6°C | 4°C | 45% | ||
| Jan 19 | 6°C | 4°C | 45% | ||
| Jan 20 | 6°C | 3°C | 46% | ||
| Jan 21 | 6°C | 3°C | 46% | ||
| Jan 22 | 6°C | 3°C | 46% | ||
| Jan 23 | 6°C | 3°C | 46% | ||
| Jan 24 | 6°C | 3°C | 46% | ||
| Jan 25 | 6°C | 3°C | 46% | ||
| Jan 26 | 5°C | 3°C | 48% | ||
| Jan 27 | 5°C | 3°C | 46% | ||
| Jan 28 | 5°C | 3°C | 45% | ||
| Jan 29 | 5°C | 3°C | 46% | ||
| Jan 30 | 6°C | 3°C | 46% | ||
| Jan 31 | 6°C | 3°C | 46% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- January 1
- sunrise 8:52 AM, sunset 4:37 PM
- January 31
- sunrise 8:25 AM, sunset 5:25 PM
Other months
Sources
Records: NOAA GHCN-Daily, station NLE00101879, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.