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Rangiora

-43.304° S   172.584° E  ·  36 M
46 /100
PEAK
Marginal, but there is a 3 hours gap from 04:00.
BEST WINDOW 04:00–07:00 · ASTRO DARK 04:00–06:00 · MOON 0%
Transparency
0.42
Seeing
0.68
Cloud
31%
Moon
0%

Fair tonight

Hour by hour, local to Rangiora. Colour encodes the score and nothing else; every other measurement is luminance.

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
04
05
06
07
45
46
43
0
BEST WINDOW
Low cloud
29%
21%
16%
12%
Mid cloud
9%
19%
20%
34%
High cloud
0%
2%
1%
9%
Transparency
0.40
0.40
0.42
0.48
Seeing
0.63
0.68
0.67
0.73
Moon clear
down
down
down
down
Inspect

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Why this hour scored what it did
04 Fair · 45/100
Starting from
100
Cloud
−34
Transparency
−16
Seeing
−5
Moonlight
−0
Darkness
−0
Score
45
CLOUD 34% LOW 29% MID 9% HIGH 0% SUN -38.1° MOON -39.5° / 0% WIND 6 TEMP 10°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

What are you doing tonight?

The same forecast, weighted for the target. Planetary work barely cares about moonlight; long exposures die on high cloud a visual observer would never notice.

SET UP 03:30 · OBSERVE 04:00–07:00 · 3H · MEAN 46

Darkness and moonlight dominate. Faint fuzzies need a genuinely dark sky more than they need steady air.

0406
TWILIGHT BEGINS 07:00
SET UP 03:30 · OBSERVE 04:00–07:00 · 3H · MEAN 49

Seeing is everything and moonlight is irrelevant. Bright targets punch through twilight, so darkness barely counts.

0406
TWILIGHT BEGINS 07:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 03:30 · OBSERVE 04:00–07:00 · 3H · MEAN 45

Tolerates soft seeing, but high cloud wrecks a wide frame and moonlight raises the background everywhere.

0406
TWILIGHT BEGINS 07:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

Needs conditions to hold still for hours. Sustained transparency matters more than any single good hour.

0406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 03:30 · OBSERVE 04:00–07:00 · 3H · MEAN 46

Naked eye, whole sky. Total cloud and moonlight are the only things that count.

0406
TWILIGHT BEGINS 07:00
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The next week of nights

Tonight · 12 Aug
46
Fair
MOON 0%
04:00–07:00
Tomorrow · 13 Aug
69
Good
MOON 1%
20:00–04:00
Friday · 14 Aug
58
Good
MOON 4%
20:00–23:00
Saturday · 15 Aug
20
Poor
MOON 8%
Sunday · 16 Aug
53
Fair
MOON 17%
00:00–01:00
Monday · 17 Aug
60
Good
MOON 25%
00:00–01:00
Tuesday · 18 Aug
28
Poor
MOON 35%
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Nearby locations

About this forecast

Conditions for Rangiora, New Zealand are computed from the MET Norway forecast model for these exact coordinates, combined with sun and moon positions we calculate directly. The score weighs cloud cover by layer, atmospheric transparency, estimated seeing, moonlight and how dark the sky actually gets. Read the full method →