Climate Nini East Helideck 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Valhall(oil) (ENWV) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	51.8	47	51	52	70	48
February	44.6	51	55	64	53	56
March	50.7	43	44	54	43	79
April	73.6		72	66	84	80
May	64.2		50	74	49	84
June	63.3		62	62	61	76
July	67.5		75	68	57	77
August	73.6		71	81	61	73
September	68.6		67	74	61	57
October	64.0		54	68	63	67
November	57.2		54	66	58	56
December	57.5		54	74	50	51
Average	61.7	46.4	60.6	67.4	59.3	69.9

46th best VFR conditions of Norway

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	85.1	92	92	86	92	79
February	69.0	78	82	89	84	88
March	76.4	76	68	77	77	93
April	86.9		85	90	97	95
May	76.5		65	87	65	91
June	84.3		88	81	83	93
July	88.1		95	91	86	91
August	92.0		94	92	95	83
September	89.4		83	97	86	80
October	87.4		84	88	85	93
November	87.4		89	93	91	79
December	86.1		91	94	80	84
Average	84.5	80.6	84.1	88.3	84.6	88.5

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	6.8	6	7	8	6	8
February	6.6	8	8	7	5	7
March	6.7	7	7	8	7	7
April	8.2		8	8	7	9
May	10.9		10	12	10	11
June	14.8		16	14	15	15
July	16.5		16	17	17	15
August	17.0		17	18	17	17
September	15.5		18	15	16	15
October	12.6		13	14	13	12
November	9.7		9	11	10	11
December	7.7		8	7	8	8
Average	10.8	6.8	11.3	11.7	10.8	11.3

7th highest temperature of Norway

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	4.6	4	5	5	4	6
February	4.3	5	6	5	3	5
March	4.2	5	4	5	4	5
April	5.4		6	5	4	6
May	7.7		8	7	7	8
June	11.5		13	9	12	12
July	13.7		14	13	15	12
August	14.3		14	14	14	14
September	13.0		15	13	14	12
October	10.3		10	12	11	10
November	7.5		7	8	8	9
December	5.5		5	4	5	6
Average	8.2	4.6	8.7	8.5	8.3	8.7

64th lowest temperature of Norway

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	15.4	21	13	16	16	8
February	13.6	20	9	20	12	23
March	14.3	17	21	7	19	6
April	7.4		8	6	5	6
May	7.7		5	6	17	5
June	5.4		3	2	7	6
July	8.1		9	5	6	12
August	8.1		9	2	6	7
September	9.4		6	8	4	10
October	14.4		22	7	13	13
November	17.5		30	12	13	11
December	17.9		22	18	23	21
Average	11.9	19.1	11.4	7.2	10.7	9.7

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month	Average	2024	2023	2022	2021	2020
January	23.1	28	25	27	19	24
February	24.5	24	23	32	26	29
March	20.9	23	21	18	20	21
April	16.7		18	17	17	16
May	16.0		16	19	14	15
June	15.5		14	17	14	17
July	15.9		18	18	13	16
August	16.0		16	14	17	17
September	18.5		17	21	18	17
October	22.9		25	24	25	22
November	21.9		21	24	23	23
December	21.7		26	18	20	22
Average	19.3	24.3	19.0	19.7	17.8	18.9

7th highest wind speed of Norway

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	253°	245°	272°	267°	233°
February	228°	268°	245°	145°	235°
March	151°	246°	149°	249°	223°
April		108°	353°	321°	272°
May		334°	235°	277°	265°
June		329°	222°	285°	140°
July		238°	266°	320°	253°
August		262°	215°	305°	144°
September		210°	017°	208°	260°
October		137°	214°	212°	197°
November		131°	167°	266°	217°
December		234°	336°	203°	168°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.