Henderson weather in January
In January, Henderson sees average daytime highs of 21°C and overnight lows near 18°C, with 71 mm of rain across 8.7 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 25% of the time in January, and the air most often feels comfortable.
Daylight stretches from about 14 h 30 min at the start of January to 13 h 54 min by month's end. Set against the rest of the year, January is Henderson's 8th-clearest and 9th-windiest month. For the whole year in context, see Henderson's year-round climate.
- Daytime high
- 21°
- 2nd warmest
- Overnight low
- 18°
- 11th coldest
- Rainfall
- 71 mm
- 8.7 wet days
- Daylight
- 14 h 18 min
- 6:23 AM – 8:39 PM
- Cloud cover
- 60%
- 8th clearest
- Wind
- 18 km/h
- 9th windiest
- Solar energy
- 7.25 kWh/m²
- Travel score
- 6.6
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 21°C through the month.
A typical January day in Henderson reaches about 21°C in the afternoon and slips back to 18°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, January runs about 2°C warmer than December and about 1°C cooler than February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg low (°C) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 20 | 17 |
| 2 | 20 | 17 |
| 3 | 20 | 17 |
| 4 | 20 | 17 |
| 5 | 20 | 17 |
| 6 | 20 | 17 |
| 7 | 20 | 17 |
| 8 | 20 | 17 |
| 9 | 20 | 17 |
| 10 | 20 | 18 |
| 11 | 20 | 18 |
| 12 | 20 | 18 |
| 13 | 21 | 18 |
| 14 | 21 | 18 |
| 15 | 21 | 18 |
| 16 | 21 | 18 |
| 17 | 21 | 18 |
| 18 | 21 | 18 |
| 19 | 21 | 18 |
| 20 | 21 | 18 |
| 21 | 21 | 18 |
| 22 | 21 | 18 |
| 23 | 21 | 18 |
| 24 | 21 | 18 |
| 25 | 21 | 18 |
| 26 | 21 | 18 |
| 27 | 21 | 18 |
| 28 | 21 | 18 |
| 29 | 21 | 18 |
| 30 | 21 | 18 |
| 31 | 21 | 18 |
Henderson weather by month
How January compares with the rest of the year at a glance. January is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 21° / 18° | 71 | 8.7 | 14.2 | 6.6 |
| Feb | 21° / 18° | 61 | 7.8 | 13.4 | 6.7 |
| Mar | 20° / 17° | 67 | 8 | 12.3 | 6.7 |
| Apr | 19° / 16° | 82 | 9.8 | 11.1 | 6.0 |
| May | 17° / 14° | 107 | 12.3 | 10.1 | 5.1 |
| Jun | 15° / 12° | 116 | 12.7 | 9.5 | 4.1 |
| Jul | 14° / 11° | 128 | 15 | 9.7 | 3.6 |
| Aug | 14° / 11° | 115 | 15.2 | 10.6 | 3.6 |
| Sep | 14° / 12° | 102 | 13.4 | 11.7 | 4.0 |
| Oct | 16° / 13° | 84 | 11.9 | 13 | 4.6 |
| Nov | 17° / 14° | 76 | 11.1 | 14 | 5.2 |
| Dec | 19° / 16° | 91 | 10.9 | 14.5 | 5.9 |
Cloud cover in January
The sky is clear or mostly clear about 25% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 21% of January, with mostly cloudy or overcast conditions the remaining 54%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 44 | 45 | 45 | 45 | 46 | 46 | 45 | 45 | 46 | 46 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 47 | 47 | 46 | 46 | 46 | 45 | 45 | 45 | 46 | 46 |
| Cloudier (%) | 56 | 55 | 55 | 55 | 54 | 54 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 53 | 53 | 54 | 54 | 54 | 55 | 55 | 55 | 54 | 54 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 44 | 56 |
| 2 | 45 | 55 |
| 3 | 45 | 55 |
| 4 | 45 | 55 |
| 5 | 46 | 54 |
| 6 | 46 | 54 |
| 7 | 45 | 55 |
| 8 | 45 | 55 |
| 9 | 46 | 54 |
| 10 | 46 | 54 |
| 11 | 46 | 54 |
| 12 | 46 | 54 |
| 13 | 46 | 54 |
| 14 | 46 | 54 |
| 15 | 47 | 53 |
| 16 | 47 | 53 |
| 17 | 47 | 53 |
| 18 | 47 | 53 |
| 19 | 47 | 53 |
| 20 | 47 | 53 |
| 21 | 46 | 54 |
| 22 | 47 | 53 |
| 23 | 47 | 53 |
| 24 | 46 | 54 |
| 25 | 46 | 54 |
| 26 | 46 | 54 |
| 27 | 45 | 55 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 46 | 54 |
| 31 | 46 | 54 |
Chance of precipitation in January
Henderson gets around 71 mm of rain over 8.7 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 29% and peaks near 31% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 |
| Rain chance (%) | |
|---|---|
| 1 | 30 |
| 2 | 29 |
| 3 | 29 |
| 4 | 29 |
| 5 | 29 |
| 6 | 29 |
| 7 | 29 |
| 8 | 29 |
| 9 | 30 |
| 10 | 30 |
| 11 | 30 |
| 12 | 30 |
| 13 | 30 |
| 14 | 31 |
| 15 | 31 |
| 16 | 31 |
| 17 | 30 |
| 18 | 30 |
| 19 | 30 |
| 20 | 29 |
| 21 | 29 |
| 22 | 28 |
| 23 | 27 |
| 24 | 27 |
| 25 | 26 |
| 26 | 26 |
| 27 | 26 |
| 28 | 25 |
| 29 | 25 |
| 30 | 25 |
| 31 | 25 |
Humidity in January
Most of January feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the comfortable band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 30 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Comfortable (%) | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 37 | 37 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 37 | 37 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 35 |
| Humid (%) | 31 | 31 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 |
| Muggy (%) | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 16 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 30 | 35 | 31 | 4 |
| 2 | 30 | 35 | 31 | 4 |
| 3 | 29 | 35 | 32 | 4 |
| 4 | 28 | 35 | 33 | 4 |
| 5 | 27 | 36 | 33 | 4 |
| 6 | 26 | 36 | 34 | 4 |
| 7 | 25 | 36 | 34 | 5 |
| 8 | 24 | 37 | 35 | 5 |
| 9 | 23 | 37 | 35 | 5 |
| 10 | 22 | 38 | 35 | 5 |
| 11 | 21 | 38 | 35 | 5 |
| 12 | 20 | 39 | 36 | 5 |
| 13 | 19 | 39 | 36 | 6 |
| 14 | 19 | 39 | 36 | 6 |
| 15 | 18 | 39 | 36 | 6 |
| 16 | 17 | 39 | 36 | 7 |
| 17 | 17 | 39 | 36 | 7 |
| 18 | 16 | 39 | 36 | 8 |
| 19 | 16 | 39 | 36 | 9 |
| 20 | 16 | 38 | 36 | 10 |
| 21 | 16 | 38 | 36 | 10 |
| 22 | 16 | 37 | 36 | 11 |
| 23 | 16 | 37 | 35 | 12 |
| 24 | 15 | 36 | 35 | 13 |
| 25 | 15 | 35 | 35 | 14 |
| 26 | 15 | 35 | 35 | 15 |
| 27 | 15 | 35 | 35 | 15 |
| 28 | 15 | 34 | 35 | 16 |
| 29 | 15 | 34 | 34 | 16 |
| 30 | 15 | 34 | 34 | 16 |
| 31 | 15 | 35 | 34 | 16 |
Wind in January
Winds average 18 km/h in January.
Across January, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 19 | light breeze |
| 2 | 19 | light breeze |
| 3 | 19 | light breeze |
| 4 | 19 | light breeze |
| 5 | 19 | light breeze |
| 6 | 19 | light breeze |
| 7 | 19 | light breeze |
| 8 | 19 | light breeze |
| 9 | 19 | light breeze |
| 10 | 19 | light breeze |
| 11 | 19 | light breeze |
| 12 | 19 | light breeze |
| 13 | 19 | light breeze |
| 14 | 19 | light breeze |
| 15 | 19 | light breeze |
| 16 | 19 | light breeze |
| 17 | 19 | light breeze |
| 18 | 19 | light breeze |
| 19 | 19 | light breeze |
| 20 | 19 | light breeze |
| 21 | 19 | light breeze |
| 22 | 19 | light breeze |
| 23 | 19 | light breeze |
| 24 | 19 | light breeze |
| 25 | 18 | light breeze |
| 26 | 18 | light breeze |
| 27 | 18 | light breeze |
| 28 | 18 | light breeze |
| 29 | 18 | light breeze |
| 30 | 18 | light breeze |
| 31 | 18 | light breeze |
Sunrise & sunset in January
Daylight runs from about 14 h 30 min at the start of January to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 36 minutes over January. Sunrise moves from 6:10 AM to 6:38 AM, and sunset from 8:39 PM to 8:32 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.5 | 14.5 | 14.5 | 14.5 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 |
| Sunrise (AM) | 6:10 | 6:11 | 6:12 | 6:12 | 6:13 | 6:14 | 6:15 | 6:16 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:27 | 6:28 | 6:29 | 6:30 | 6:31 | 6:32 | 6:33 | 6:34 | 6:35 | 6:36 | 6:37 | 6:38 |
| Sunset (PM) | 8:39 | 8:39 | 8:40 | 8:40 | 8:40 | 8:40 | 8:40 | 8:40 | 8:40 | 8:40 | 8:40 | 8:40 | 8:39 | 8:39 | 8:39 | 8:39 | 8:39 | 8:38 | 8:38 | 8:38 | 8:37 | 8:37 | 8:36 | 8:36 | 8:35 | 8:35 | 8:34 | 8:34 | 8:33 | 8:32 | 8:32 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.5 | 6:10 | 8:39 |
| 2 | 14.5 | 6:11 | 8:39 |
| 3 | 14.5 | 6:12 | 8:40 |
| 4 | 14.5 | 6:12 | 8:40 |
| 5 | 14.4 | 6:13 | 8:40 |
| 6 | 14.4 | 6:14 | 8:40 |
| 7 | 14.4 | 6:15 | 8:40 |
| 8 | 14.4 | 6:16 | 8:40 |
| 9 | 14.4 | 6:16 | 8:40 |
| 10 | 14.4 | 6:17 | 8:40 |
| 11 | 14.4 | 6:18 | 8:40 |
| 12 | 14.3 | 6:19 | 8:40 |
| 13 | 14.3 | 6:20 | 8:39 |
| 14 | 14.3 | 6:21 | 8:39 |
| 15 | 14.3 | 6:22 | 8:39 |
| 16 | 14.3 | 6:23 | 8:39 |
| 17 | 14.2 | 6:24 | 8:39 |
| 18 | 14.2 | 6:25 | 8:38 |
| 19 | 14.2 | 6:26 | 8:38 |
| 20 | 14.2 | 6:27 | 8:38 |
| 21 | 14.2 | 6:28 | 8:37 |
| 22 | 14.1 | 6:29 | 8:37 |
| 23 | 14.1 | 6:30 | 8:36 |
| 24 | 14.1 | 6:31 | 8:36 |
| 25 | 14.1 | 6:32 | 8:35 |
| 26 | 14.0 | 6:33 | 8:35 |
| 27 | 14.0 | 6:34 | 8:34 |
| 28 | 14.0 | 6:35 | 8:34 |
| 29 | 14.0 | 6:36 | 8:33 |
| 30 | 13.9 | 6:37 | 8:32 |
| 31 | 13.9 | 6:38 | 8:32 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 7.25 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 1.97 kWh/m² to a high of 7.25 kWh/m² in January across the year — January's 7.25 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.4 | 7.4 | 7.3 | 7.3 | 7.2 | 7.2 | 7.1 | 7.1 | 7.0 | 7.0 | 7.0 | 6.9 | 6.9 | 6.9 | 6.9 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 7.5 | Intense |
| 2 | 7.5 | Intense |
| 3 | 7.5 | Intense |
| 4 | 7.5 | Intense |
| 5 | 7.5 | Intense |
| 6 | 7.4 | Intense |
| 7 | 7.4 | Intense |
| 8 | 7.3 | Intense |
| 9 | 7.3 | Intense |
| 10 | 7.2 | Intense |
| 11 | 7.2 | Intense |
| 12 | 7.1 | Intense |
| 13 | 7.1 | Intense |
| 14 | 7.0 | Intense |
| 15 | 7.0 | Intense |
| 16 | 7.0 | Intense |
| 17 | 6.9 | Intense |
| 18 | 6.9 | Intense |
| 19 | 6.9 | Intense |
| 20 | 6.9 | Intense |
| 21 | 6.8 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.7 | Intense |
| 27 | 6.7 | Intense |
| 28 | 6.7 | Intense |
| 29 | 6.6 | Intense |
| 30 | 6.6 | Intense |
| 31 | 6.6 | Intense |
Hazard calendar for Henderson
In January, Henderson sits inside its cyclone season. The full year is below, with each hazard's peak months called out.
Henderson sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Is January a good time to visit Henderson?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Henderson for sightseeing.
What to pack for Henderson in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Henderson sees daytime highs around 21°C and nights near 18°C. Pack sun protection. Worth having: rain gear. About 9 days see rain.
Sea temperature near Henderson in January
The nearest coast averages about 20°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in February at about 21°C and coldest in August near 14°C.
It's comfortable for a long swim from Jan 18 to Mar 15 — about 1.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 21 | 20 | 19 | 17 | 16 | 15 | 14 | 14 | 15 | 17 | 19 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Bracing | Bracing | Bracing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 20 | Refreshing |
| Apr | 19 | Cool |
| May | 17 | Cool |
| Jun | 16 | Cool |
| Jul | 15 | Bracing |
| Aug | 14 | Bracing |
| Sep | 14 | Bracing |
| Oct | 15 | Cool |
| Nov | 17 | Cool |
| Dec | 19 | Cool |
UV index in Henderson in January
Clear-sky midday UV in January peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Henderson peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 11 | 8 | 5 | 3 | 2 | 3 | 4 | 5 | 8 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Low | Moderate | Moderate | Moderate | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 8 | Very high |
| Apr | 5 | High |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 5 | Moderate |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Henderson?
Henderson sits at 36.9°S, 174.6°E, 13 m above sea level, in New Zealand. The nearest listed city is Lincoln, 2.0 km away.
Topography around Henderson
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Henderson.
Within 3 km, the terrain around Henderson has only modest variations in elevation — a maximum elevation change of 107 m around an average of 36 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 465 m; within 80 km, large variations in elevation — a maximum elevation change of 905 m.
The land around Henderson is covered by artificial surfaces (47%) and trees (37%) within 3 km, trees (47%) and water (21%) within 16 km, and water (57%) and grassland (23%) within 80 km.
New Zealand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 86% of US
- price level, 2025
- GDP per capita
- $49,591
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.5
- per 100k, 2022
- Road deaths
- 9.6
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Henderson (-36.8801°, 174.6198°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).